Chitosan (CS) blends with collagen (CL) and Aloe vera (AV) have gained significant attention in the biomedical field due to their biocompatibility, biodegradability, and potential for wound healing applications. In this study, we investigated the preparation and characterization of CS/CL and CS/AV blends using selective precipitation and co-precipitation techniques. The synthesis processes were analyzed for yield and 4-hydroxyproline content (in CS/CL blends). The materials were characterized using bromatological analyses, viscosity measurements, Fourier-transform infrared spectroscopy (FTIR), X-ray diffraction (XRD), and scanning electron microscopy (SEM). These eco-friendly methods effectively promoted interactions between the biopolymers, resulting in homogeneous blends with tunable properties. Besides, they are simple, fast, safe, and require minimal infrastructure. This study demonstrated that selective precipitation and co-precipitation are effective methods for producing chitosan/collagen and chitosan/Aloe vera blends. These methods foster interactions and miscibility between the biopolymers, as confirmed by FTIR, XRD, viscosity, and 4-Hy content analyses. They also align with green chemistry principles by avoiding organic solvents, reducing environmental risks, and minimizing waste. The high yields achieved, especially for CS/AV blends (exceeding 96%), make these materials compatible with lyophilization procedures. The absence of segregated phases after appropriate washing underscores their suitability for pharmaceutical formulations and other applications. CS (CS CL (CL AV (AV biocompatibility biodegradability applications CSCL CSAV coprecipitation co techniques 4hydroxyproline hydroxyproline 4 . blends) analyses measurements Fouriertransform Fourier transform FTIR , (FTIR) Xray X ray XRD (XRD) SEM. SEM (SEM) ecofriendly eco friendly biopolymers properties Besides simple fast safe infrastructure chitosancollagen chitosan chitosanAloe 4Hy Hy solvents risks waste achieved exceeding 96%, 96 96% 96%) procedures (FTIR (XRD (SEM 9

Palygoskite pellets were synthesized with lignin and WAX® and subjected to technological characterization for application in the remediation of Pb ions contained in aqueous effluents. X-ray diffraction (XRD) characterization of the palygorskite:lignin:WAX® material in a proportion of 70:15:15 revealed that the heat treatment of the pellets did not compromise the crystalline structure of the palygoskite. Texture analyses demonstrated that the surface area increased after synthesis and heat treatment, thus increasing the adsorption capacity. Regarding porosity, X-ray microtomography revealed that the pellets exhibit an irregular and porous spherical morphology with interconnected pores. Adsorption tests showed a removal of 73% of PbII contained in aqueous effluents after 15 min, with equilibrium reached in 60 min (88.36%). After the adsorption process, the presence of lead in the material was qualitatively confirmed through scanning electron microscopy and energy-dispersive X-ray spectroscopy (SEM-EDS) images. The produced pellets exhibit promising adsorbent qualities, such as strength and effective PbII ion adsorption. WAX Xray X ray XRD (XRD palygorskiteligninWAX® palygorskiteligninWAX palygorskite palygorskite:lignin:WAX 701515 70 70:15:1 palygoskite capacity porosity pores 73 1 6 88.36%. 8836 88.36% . 88 36 (88.36%) process energydispersive energy dispersive SEMEDS SEM EDS (SEM-EDS images qualities 70151 7 70:15: 883 88.36 8 3 (88.36% 7015 70:15 88.3 (88.36 701 70:1 88. (88.3 70: (88. (88 (8 (

ABSTRACT Beans are a vital component of the human diet, being able to supply a large part of the daily protein requirements of individuals, in addition to containing considerable amounts of iron, calcium, vitamins, carbohydrates, fiber, and lysine. Controlled germination is an accessible and effective technique that aims to improve the nutritional, functional, and sensory qualities of seeds intended for food consumption. This study aimed to characterize fresh and germinated beans of Phaseolus vulgaris (carioca, branco, preto, gordo varieties) and Vigna unguiculata (cowpea). The germination process was conducted in trays containing the sand substrate (350 g) in the environmental conditions of the laboratory. The fresh and germinated beans were evaluated for physicochemical variables in triplicate. The germination process increased moisture content, water activity, ash, pH, soluble alcohol acidity, proteins, ascorbic acid, phenols, tannins, flavonoids, anthocyanins, and carotenoids. On the other hand, there was a reduction in the content of lipids, starch, and total sugars in bean seeds. With the increase in bioactive compounds, it was found that the germination process is an excellent method for increasing the nutritional quality of beans. diet individuals iron calcium vitamins carbohydrates fiber lysine functional consumption carioca, carioca (carioca branco preto varieties cowpea. cowpea . (cowpea) 350 (35 g laboratory triplicate activity ash pH acidity proteins acid phenols tannins flavonoids anthocyanins carotenoids hand lipids starch compounds (cowpea 35 (3 3 (

RESUMO O feijão é um importante componente da dieta humana, sendo capaz de suprir grande parte das necessidades proteicas diárias dos indivíduos, além de conter quantidades consideráveis de ferro, cálcio, vitaminas, carboidratos, fibras e lisina. A germinação controlada é uma técnica acessível e eficaz que visa melhorar as qualidades nutricionais, funcionais e sensoriais de sementes destinadas ao consumo alimentar. O objetivo deste estudo foi caracterizar feijão Phaseolus vulgaris das variedades carioca, branco, preto, gordo e feijão-caupi (Vigna unguiculata) in natura e germinado. O processo de germinação foi realizado em bandejas contendo substrato areia (350 g), em condições ambientais de laboratório. Em seguida, os grãos in natura e germinados foram avaliados quanto às variáveis físico-químicas em triplicata. A germinação do feijão aumentou o teor de umidade, atividade de água, cinzas, pH, acidez álcool solúvel, proteínas, ácido ascórbico, fenóis, taninos, flavonóides, antocianinas e carotenóides. Por outro lado, houve redução no teor de lipídios, amido e açúcares totais nas sementes de feijão. Com o aumento dos compostos bioativos, constatou-se que o processo de germinação é um excelente método para aumentar a qualidade nutricional do feijão. humana indivíduos ferro cálcio vitaminas carboidratos lisina nutricionais alimentar carioca branco preto feijãocaupi caupi Vigna unguiculata germinado 350 (35 g, g , g) laboratório seguida físicoquímicas físico químicas triplicata umidade água cinzas pH solúvel proteínas ascórbico fenóis taninos flavonóides carotenóides lado lipídios bioativos constatouse constatou se 35 (3 3 (

Abstract The improper disposal of this waste poses environmental challenges, which can be addressed through effective reuse strategies. This study aims to explore the potential of utilizing marine shell waste as partial substitutes for aggregates in concrete. The research involves investigating the physical characteristics of the recycled aggregate using Atomic Force Microscopy (AFM) and Scanning Electron Microscopy (SEM) techniques to elucidate the contact surface with the paste. Additionally, chemical and mineralogical characteristics are analyzed through X-ray fluorescence and X-ray diffraction tests. The compressive strength test is conducted on concrete samples to assess the performance of these materials as both aggregate (shell type A) and filler (shell type B). The findings indicate that replacing up to 20% of marine shells as coarse aggregate and 10% as filler demonstrates feasibility for applications in structural concrete. Furthermore, up to 30% replacement can be directed towards non-structural concrete, providing a comprehensive understanding of the potential applications of marine shell residues in concrete production. challenges strategies AFM (AFM SEM (SEM paste Additionally Xray X ray tests A B. B . B) 20 10 Furthermore 30 nonstructural non production 2 1 3

Resumo As atividades de mariscagem e malacocultura produzem uma grande quantidade de resíduos sólidos compostos por conchas marinhas. O impacto ambiental do descarte inadequado pode ser atenuado com estratégias de reaproveitamento. O objetivo deste trabalho é investigar a viabilidade do uso de resíduo de conchas marinhas com substituintes parciais de agregados no concreto. As características físicas do agregado reciclado foram investigadas através das técnicas de Microscopia de Força Atômica (MFA) e Microscopia Eletrônica de Varredura (MEV) a fim de esclarecer aspectos da superfície de contato com a pasta; as características químicas e mineralógicas foram investigadas por meio dos ensaios de fluorescência de raios-X e difração de raios-X; e o ensaio de resistência à compressão foi conduzido em amostras de concreto foram moldadas para avaliação do comportamento destes materiais do comportamento destes materiais como agregado (concha tipo A) e fíler (concha tipo B). Concluiu-se que o uso de até 20% de substituição de concha marinha como agregado graúdo e 10% como filer mostrou viabilidade para aplicações em concretos estruturais e, de forma complementar, teores de até 30% podem ser direcionados à concretos não estruturais. reaproveitamento MFA (MFA MEV (MEV pasta raiosX raios X A B. B . B) Concluiuse Concluiu se 20 10 complementar 30 2 1 3

Abstract Introduction: The Mar Muerto lagoon is an ecosystem characterized by high productivity upon which various inhabiting organisms depend. Additionally, it is a system susceptible to environmental impacts. Consequently, indices have been developed to determine the degree of disturbance caused by natural and/or anthropogenic factors. Objective: To assess the degree of disturbance in the Mar Muerto lagoon using a Biotic Integrity Index (BII) based on ichthyofauna. Methods: From December 2019 to March 2021, 12 sampling stations were established in the lagoon. The Biotic Integrity Index was developed by collecting data on hydrological variables (salinity, dissolved oxygen, pH, electrical conductivity, suspended solids, temperature, nitrites, nitrates, phosphates, and transparency) and classifying fish species based on their composition and richness. This was followed by a Water and Habitat Quality Index (WHQI) derived from the characterization and classification of sampling stations based on physicochemical variables. The correlation of the two indices allowed for the evaluation of the effectiveness of the BII. Results: 65 species were reported for the lagoon, with Lile gracilis, Oligoplites altus, Eucinostomus currani, and Gerres simillimus being the most frequently recorded. Only station 10 exhibited poor biotic integrity (BII = 26), while the rest displayed regular biotic integrity (BII = 30 - 44), with station nine presenting the highest calculated value (BII = 42). The assessment of the lagoon’s BII demonstrated an average biotic integrity considered “regular.” Conclusion: Through this study, the functionality of the modified BII for the Mar Muerto lagoon was verified, allowing for the evaluation of the present conservation status and comparison with previous studies.

Resumen Introducción: La laguna Mar Muerto es un ecosistema caracterizado por una gran productividad, de la cual dependen diversos organismos que la habitan; también es un sistema susceptible a impactos ambientales. Por lo anterior, se han desarrollado índices que permiten conocer el grado de alteración por causas naturales y/o antropogénicas. Objetivo: Evaluar el grado de perturbación de la laguna Mar Muerto, mediante un índice de integridad biótica (IBI) basado en la ictiofauna. Métodos: De diciembre 2019 a marzo 2021, se establecieron 12 estaciones de muestreo en la laguna. La elaboración del índice de integridad biótica fue a partir de la recopilación de datos de las variables hidrológicas (salinidad, NO2, NO3, PO4, pH, OD, T, CE, transparencia y SDT) y la clasificación de las especies ícticas según su composición y riqueza; seguido de un índice de calidad de agua y hábitat (ICAH), elaborado a partir de la caracterización y clasificación de las estaciones de muestreo en función de variables fisicoquímicas. La correlación de los dos índices permitió evaluar la efectividad del IBI. Resultados: 65 especies fueron reportadas para la laguna, de las cuales Lile gracilis, Oligoplites altus, Eucinostomus currani y Gerres simillimus se registraron con mayor frecuencia. Sólo la estación 10 presentó una integridad biótica pobre (IBI = 26), el resto presentó un IBI regular (IBI = 30 - 44), siendo la estación nueve la que presentó el valor máximo calculado (IBI = 42). La valoración del IBI de la laguna demostró que ésta presenta una integridad biótica promedio considerada “regular”. Conclusión: A través de este trabajo, se comprobó la funcionalidad del IBI modificado para la laguna Mar Muerto, permitiendo evaluar el grado de conservación presente y compararlo con trabajos previos.

RESUMEN El presente artículo tiene como objetivo contrastar las redes de apoyo comunitarias en contextos vulnerables reconociéndolas como expresiones de resiliencia comunitaria en el marco del proyecto -Vulnerabilidad, resiliencia y riesgo de comunidades y cuencas abastecedoras afectadas por fenómenos de deslizamientos y avalanchas- donde se elige dos territorios, ex post y ex ante respectivamente, con factores de riesgo de avenida torrencial. Como resultado, se evidencian dos tipos de redes de apoyo, primero, redes combinadas donde diferentes actores se unen para trabajar en torno a las necesidades de la población y la segunda, redes circunstanciales, que surgen en un momento particular y desaparecen en el momento en que la situación es resuelta. Esta investigación es de carácter cualitativo, busca la comprensión, reconstrucción e interpretación de momentos, hechos, situaciones y acciones desde las voces de los sujetos que vivencian determinados fenómenos, elaborando con ellos un -todo-con-sentido-, de acuerdo con sus historias, trayectorias y subjetividades. Se implementaron técnicas de revisión documental, informes de base comunitaria y entrevistas semiestructuradas, así como la aplicación de instrumentos de identificación y caracterización de actores y redes.

RESUMO Este artigo tem como objetivo contrastar as redes de apoio comunitário em contextos vulneráveis, reconhecendo-as como expressões da resiliência da comunidade no âmbito do projeto “Vulnerabilidade, resiliência e risco em comunidades e bacias de abastecimento afetadas por deslizamentos de terra e valanches”, no qual foram escolhidos dois territórios, ex post e ex ante, respectivamente, com fatores de risco de inundações torrenciais. Como resultado, dois tipos de redes de apoio são evidenciados: primeiro, redes combinadas, em que diferentes atores se unem para trabalhar em torno das necessidades da população, e segundo, redes circunstanciais, que surgem em um determinado momento e desaparecem quando a situação é resolvida. Esta pesquisa é de natureza qualitativa, buscando a compreensão, a reconstrução e a interpretação de momentos, fatos, situações e ações a partir das vozes dos sujeitos que vivenciam determinados fenômenos, elaborando com eles um “todo-com-sentido”, de acordo com suas histórias, trajetórias e subjetividades. Foram implementadas técnicas de análise documental, relatórios comunitários e entrevistas semiestruturadas, bem como a aplicação de instrumentos para a identificação e caracterização de atores e redes.

ABSTRACT The objective of this article is to contrast community support networks in vulnerable contexts, recognizing them as expressions of community resilience within the framework of the project "Vulnerability resilience and risk of communities and supply basins affected by landslide and avalanche phenomena" where two territories are chosen, ex-post and ex-ante respectively with risk factors for torrential flooding. As a result, two types of support networks are evident: first, combined networks where different actors come together to work around the needs of the population, and second, circumstantial networks, which emerge at a particular moment and disappear at the moment that the situation is resolved.This qualitative research seeks the understanding, reconstruction, and interpretation of moments, facts, conditions, and actions from the voices of the subjects who experience certain phenomena, creating with them an "everything-with-meaning", according to their stories, trajectories, and subjectivities. Document review techniques, community-based reports, and semi-structured interviews were implemented, as well as the application of identification and characterization instruments of actors and networks.

Resumen Antecedentes: Dalea es endémico de América, posee amplia distribución en la provincia del Desierto Chihuahuense, sus especies se asocian a matorral xerófilo, bosque de encino y bosque de coníferas. Hipótesis: Las especies de Dalea funcionan como un subrogado de la flora y refuerzan las propuestas de regionalización para esta provincia. Sitio y años de estudio: Provincia del Desierto Chihuahuense, agosto 2020 a julio 2022. Métodos: Se elaboró una base de datos a partir de ejemplares de herbario. El análisis de riqueza de especies se realizó con una cuadricula de 1 × 1°. El endemismo ponderado (WE) y endemismo ponderado corregido (CWE) fueron estimados. Para regionalizar, el recambio de especies fue calculado y se aplicó el método de agrupación UPGMA. Para determinar la caracterización ambiental de los componentes bióticos, los grupos se cotejaron con ecorregiones publicadas. Resultados: Se encontraron 3,061 registros de 77 especies de Dalea, 33 son endémicas al área de estudio. La riqueza de especies se concentró al noroeste y sureste de la provincia. La riqueza de endémicos fue localizada en el centro y norte. El análisis de WE mostró tres celdas ubicadas en el centro del área de estudio; el CWE recuperó tres celdas al sur de la provincia. Se reconocen dos grupos principales (subprovincias), anidando grupos más pequeños (distritos). Los distritos corresponden en su mayoría a las ecorregiones del Desierto Chihuahuense, Matorral de la Meseta Central, Bosques secos del Bajío. Conclusiones: Dalea funcionó como subrogado de la flora y reforzó las propuestas de regionalización para esta provincia.

Abstract Background: Dalea is endemic to the Americas and has a wide in the Chihuahuan Desert province. Its species are associated with xeric scrub, oak forest, and coniferous forest. Hypothesis: Dalea species function as a surrogate of the flora and reinforce the regionalization proposals for this province. Study site and research period: Chihuahuan Desert province, August 2020 to July 2022. Methods: A database was generated from herbarium specimens. The species richness analysis was obtained using a 1 × 1° grid. Weighted endemism (WE) and corrected weighted endemism (CWE) were analyzed and estimated. For regionalization, species replacement was calculated and the UPGMA grouping method was applied. The resulting groups were checked against the published ecoregions to determine the biotic components of the environmental characterization. Results: 3,061 records were obtained, representing 77 species, of which 33 are endemics to the study area. The northwestern and southeastern parts of the province had the highest species richness. The central and northern parts had the highest endemic species richness. The WE analysis showed three cells located in the center of the study area, while the CWE recovered three cells at the south of the province. Two large main subprovinces are recognized, these nesting smaller area groups (districts). The districts mostly correspond to the ecoregions of the Chihuahuan Desert, Scrub of the Central Plateau, and Dry forests of the Bajío. Conclusions: Dalea was a surrogate for the flora and reinforced the regionalization proposals for this province.

Resumen Durante las últimas décadas en Puno, Perú, la problemática de la contaminación se fue agudizando por la acción combinada del crecimiento desordenado de la población urbana, gestión deficiente de residuos sólidos, descarga de aguas servidas sin tratamiento en la bahía del lago Titicaca y prácticas de sanidad e higiene inadecuadas; situaciones que afectan severamente el ambiente y la salud humana. El objetivo del estudio fue caracterizar las actitudes y comportamientos proambientales de la población de la ciudad de Puno en relación al saneamiento, la contaminación y la gestión ambiental. La investigación es no experimental, cuantitativa, trans¬versal, descriptiva, correlacional y nivel de análisis micro. El universo de estudio fue la población mayor de 18 años del área urbana, que comprende 97.264 habitantes; la muestra, deter¬minada al azar simple, fue de 382 personas. Se aplicó un cuestionario estructurado. El análisis descriptivo, inferencial y prueba de hipótesis se realizó con el software estadístico SPSS. Los resultados señalan que las actitudes ambientales de la mayoría de la población son positivas respecto a factores y fuentes de contaminación y efectos en la salud humana; contrariamente, las prácticas ambientales son inadecuadas en gestión ambiental en el hogar y condiciones de sanidad e higiene en la vivienda. Se concluye, que la mejora sostenible de actitudes y comportamientos proambientales, demanda de una nueva política pública de educación ambiental, cuya implementación incorpore la participación efectiva de la sociedad civil con base a un sistema de incentivos.

Abstract During the last decades in Puno, Peru, the problem of contamination has worsened due to the combined action of the disorderly growth of the urban population, poor management of solid waste, discharge of untreated sewage into the bay of Lake Titicaca and practices of inadequate sanitation and hygiene, severely affecting the environment and human health. The objective of the study was to characterize the pro-environmental attitudes and behaviors of the city’s population of Puno in relation to sanitation, pollution and environmental management. The research is nonexperimental, quantitative, cross-sectional, descriptive, correlational and micro level of analysis. The universe of study was the population over 18 years of age in the urban area, which comprises 97,264 inhabitants; the sample, determined at simple random, was 382 people. A structured questionnaire was applied. Descriptive and inferential analysis and hypothesis testing were performed with SPSS statistical software. The results indicate that the environmental attitudes of the majority of the population are positive regarding factors and sources of pollution and effects on human health. On the contrary, environmental practices are inadequate in environmental management in the home and health and hygiene conditions in the home. It is concluded that the sustainable improvement of pro-environmental attitudes and behaviors demands a new public policy of environmental education, whose implementation incorporates the effective participation of civil society based on an incentive system.

Abstract The city of Parras de la Fuente, Coahuila is characterized by having criollo avocado trees with different morphological properties. However, very little information is available on their fruit nutritional and sensory characteristics. The objective of this work was to perform the bromatological, mineral, phytochemical and sensory characterization of 7 avocado landraces. The proximal analysis was carried out using standardized tests by the AOAC (2019), while the phytochemical content was determined using HPLC/MS equipment. Subsequently, the samples were evaluated using a hedonic test. The bromatological analysis showed significant differences in the total of the samples for the different response variables, which indicates the great genetic diversity among the sampled trees. The mineral that were determined in the highest concentration were Potassium, Magnesium and Calcium. Thirty-eight different phytochemical compounds were identified in the fruits, with a greater presence of flavones. While the sensory analysis showed a significant difference among the avocado landraces for the evaluated attributes. The flavor and texture attributes were the most important for the consumer preference. Different environmental factors (soil, climate, altitude, latitude, maturity) modify the nutritional composition of the avocado and its organoleptic characteristics. The results of this work may help propagation, fruit diversification and development of companies focused on this fruit in Parras de la Fuente, Coahuila.

Resumen La ciudad de Parras de la Fuente, Coahuila, se caracteriza por tener árboles de aguacate criollo con diferentes propiedades morfológicas. Sin embargo, es muy poca la información que se tiene sobre las características nutrimentales y sensoriales de los frutos de estos árboles. El objetivo del presente trabajo fue caracterizar bromatológica, mineral, fitoquímica y sensorial 7 aguacates criollos, obtenidos de diferentes árboles. El análisis proximal se realizó mediante pruebas estandarizadas por la AOAC (2019), mientras que el contenido de fitoquímicos se determinó en un equipo HPLC/MS. Posteriormente, las muestras se evaluaron mediante una prueba hedónica. El análisis bromatológico arrojó diferencias significativas en el total de las muestras para las diferentes variables de respuesta, lo que indica la gran diversidad genética entre los árboles muestreados. Los minerales que se determinaron en mayor concentración fueron Potasio, Magnesio y Calcio. Se identificaron 38 compuestos fitoquímicos diferentes en los frutos, con mayor presencia de flavonas, mientras que el análisis sensorial arrojó una diferencia significativa entre los criollos en las variables evaluadas. Los atributos de sabor y textura resultaron los más importantes para la preferencia del consumidor. Diferentes factores ambientales (suelo, clima, altitud, latitud, madurez) modifican la composición nutrimental del aguacate y sus características organolépticas. Los resultados de este trabajo pudieran ayudar a la propagación, diversificación frutícola y desarrollo de empresas enfocadas en este fruto en Parras de la Fuente, Coahuila.

Abstract The growing global consumption of coffee has positioned Colombia as the third largest producer worldwide. However, the processing of coffee beans generates significant by-products, such as mucilage, which is rich in phenolic compounds with antioxidant activity. Inadequate disposal of this waste creates environmental problems and economic losses. This research aimed to develop high-quality coffee mucilage capsules using spray drying technology. Chemically modified banana starch with octenyl succinic anhydride (OSA) and commercial maltodextrin were used as coating materials to enhance the properties of the capsules. Physicochemical and functional characterization was performed on samples of fresh and filtered coffee mucilage (MF), concentrated mucilage (MC), concentrated mucilage with the addition of maltodextrin and OSA-modified starch (MCMA), and finally, spraydried coffee mucilage powder (MP). The antioxidant capacity (AC) of the mucilage was evaluated throughout the processing stages. MF showed an AC of 179.2 μmol of trolox/100 g, while the final coffee mucilage powder (MP) showed a significantly higher AC of 5444.35 μmol of trolox/100 g. Additionally, the MP showed a stability index of 0.48, water activity (aw) of 0.19, solubility of 14.64%, and a high water retention capacity of 90.53%. Microscopic analysis revealed amorphous structures with an average size of 29.16 ± 2.12 μm in the MP. These findings highlight the potential of spray drying with food-grade matrices such as OSA-modified banana starch to encapsulate coffee mucilage, preserving its antioxidant capacity and creating a new functional food ingredient with water retention properties.

Resumen El creciente consumo mundial de café ha posicionado a Colombia como el tercer productor más grande a nivel global. Sin embargo, el procesamiento de los granos de café genera subproductos significativos, como el mucílago, una fuente rica en compuestos fenólicos con actividad antioxidante. La eliminación inadecuada de este residuo crea problemas ambientales y pérdidas económicas. Esta investigación tuvo como objetivo desarrollar cápsulas de mucílago de café de alta calidad utilizando tecnología de secado por aspersión. Se empleó almidón de plátano modificado químicamente con anhídrido octenil succínico (OSA) y maltodextrina comercial como materiales de recubrimiento para mejorar las propiedades de las cápsulas. Se caracterizaron fisicoquímica y funcionalmente muestras de mucílago de café fresco y filtrado (MF), mucílago concentrado (MC), mucílago concentrado con adición de maltodextrina y almidón modificado con OSA (MCMA) y, finalmente, el polvo de mucílago de café secado por aspersión (MP). La capacidad antioxidante (AC) del mucílago se evaluó a lo largo de las etapas de procesamiento. El MF mostró una AC de 179,2 μmol de trolox/100g, mientras que el polvo final de mucílago de café (MP) mostró una AC significativamente mayor de 5444,35 μmol de trolox/100 g. Además, el MP mostró un índice de estabilidad de 0,48, actividad del agua (aw) de 0,19, solubilidad del 14,64% y una alta capacidad de retención de agua del 90,53%. El análisis microscópico reveló estructuras amorfas con un tamaño promedio de 29,16 ± 2,12 μm en el MP. Estos hallazgos resaltan el potencial del secado por aspersión con matrices de grado alimenticio como el almidón de plátano modificado con OSA para encapsular el mucílago de café, preservando su capacidad antioxidante y creando un nuevo ingrediente alimentario funcional con propiedades de retención de agua.

ABSTRACT The livestock productive landscape encompassing Playada, La Piedad, San Francisco, and La Rafaela estates in the western region of Paraguay emerges as a representative model with capabilities for both production and conservation of ecosystem services. Through categorization using ArcGIS 10.3, it was identified that grasslands and savannas cover approximately 35% of the total area, around 5,716 hectares. The study, based on landscapescale homogeneity, allowed for the analysis of physical characteristics, distribution, coverage, and anthropogenic pressures in five Homogeneous Environmental Units (HEUs). The characterization of ecosystem services revealed that forest remnants provide regulation, provisioning, and cultural services, while grasslands are the primary providers of supporting services. Technical profiles were generated for each HEU, and conservation strategies such as agroforestry systems and land planning, derived from sustainable production, were proposed for the benefit of both producers and ecosystems, emphasizing the importance of understanding the dynamics of productive landscapes for resource optimization and long-term sustainability.

RESUMEN El paisaje productivo ganadero en las fincas Playada, La Piedad, San Francisco y La Rafaela, región occidental de Paraguay, se erige como modelo representativo con aptitudes para producción y conservación de servicios ecosistémicos. Mediante categorización con ArcGIS 10.3, se identificó que los pastizales y sabanas cubren aproximadamente el 35% del área total, alrededor de 5,716 hectáreas. El estudio, basado en homogeneidad a escala paisaje, permitió analizar características físicas, distribución, cobertura y presiones antrópicas en cinco Unidades Ambientales Homogéneas (UAH). La caracterización de servicios ecosistémicos reveló que los remanentes boscosos proveen servicios de regulación, provisión y culturales, mientras que los pastizales son los principales proveedores de servicios de soporte. Con fichas técnicas para cada UAH, se propusieron estrategias de conservación como sistemas silvopastoriles y planificación predial, derivadas de la producción sostenible, en beneficio de productores y ecosistemas, subrayando la importancia del conocimiento de la dinámica de paisajes productivos para la optimización de recursos y la sostenibilidad a largo plazo.

Resumen El presente artículo determinó la factibilidad comercial, ambiental de una ruta turística en la zona centro del departamento del Huila. Para ello se determinaron los atractivos turísticos de la zona, se identificó la factibilidad comercial y se analizó la sostenibilidad ambiental del producto. La recolección de la información se realizó por medio de la Cámara de Comercio de Neiva, sede Garzón, tomando como población a los aportantes con Registro Nacional de Turismo, de los ocho municipios que conforman la zona, que ofrecían servicios de alojamiento y alimentación. La caracterización de los sitios se realizó por medio de una encuesta para trazar la ruta con el uso de Google Maps. Finalmente, arrojó como conclusión la riqueza de atractivos naturales y patrimoniales, exaltó la oferta y la demanda del inventario turístico y sumó las políticas de fomento en sostenibilidad ambiental.

Abstract This article determined the commercial and environmental feasibility of a tourist route in the central zone of the department of Huila. For this purpose, the tourist attractions of the area were determined, the commercial feasibility was identified and the environmental sustainability of the product was analyzed. The information was collected through the Chamber of Commerce of Neiva, Garzón headquarters, taking as population the contributors with National Tourism Registration, from the eight municipalities that make up the zone, who offered lodging and food services. The characterization of the sites was carried out by means of a survey to trace the route with the use of Google Maps. Finally, it concluded that there is a wealth of natural and patrimonial attractions, it exalted the supply and demand of the tourist inventory and added the policies for the promotion of environmental sustainability.

ABSTRACT The hydrographic basins play an important role in the supply of water for the agricultural sector, as well as for other economic, social, and environmental activities in the provincial territory. Climate knowledge is of great importance for the sustainable development of any study area, so the objective of this research is to characterize climatically the area of the Damují Hydrographic Basin. For the realization of this study, the preliminary results of the Agroclimatic Atlas of the Cienfuegos province were used, the digital database of all meteorological variables from 62 meteorological stations belonging to the Meteorology Institute network and the 4x4 km grid used in other climatic and agrometeorological studies, taking as the climatic norm period the years 1991-2020. The annual average temperature in the basin does not experience a great spatial variation with values between 24-25ºC in most of its surface, slightly increasing in the southern portion with records between 25-26ºC. Minimum temperatures in the months of December, January, and February can be below 16ºC on average and maximums can exceed 31.0 ºC on average annually in the northern half of the study area, however, in the months of July and August these can exceed 33.5ºC on average. The annual average precipitation accumulations reach a total of 1422.1 mm. The generated information constitutes a tool for decision makers that will allow them to adapt and face the climate change and variability with greater knowledge.

RESUMEN Las cuencas hidrográficas juegan un papel importante en el suministro de agua para el sector agropecuario, además de otras actividades económicas, sociales y ambientales del territorio provincial. El conocimiento climático es de gran importancia para el desarrollo sostenible de cualquier zona de estudio por lo que el objetivo de esta investigación es caracterizar climáticamente el área de la cuenca Hidrográfica Damují. Para la realización de este estudio se utilizaron los resultados preliminares del Atlas Agroclimático de la provincia Cienfuegos, la base de datos digital de todas las variables meteorológicas de 62 estaciones meteorológicas pertenecientes a la Red del Instituto de Meteorología y la rejilla 4x4 km utilizada ya en otros estudios climáticos y agrometeorológicos, tomando como período climático norma el 1991-2020. La temperatura media anual en la cuenca no experimenta una gran variación espacial con valores entre 24-25ºC en la mayor parte de su superficie, aumentando ligeramente en la porción sur con registros entre 25-26ºC. Las temperaturas mínimas en los meses de diciembre, enero y febrero pueden estar por debajo de los 16 ºC como promedio y las máximas pueden llegar a superar los 31.0 ºC como promedio anual en la mitad norte de la zona de estudio, no obstante, en los meses de julio y agosto estos pueden rebasar los 33.5 ºC como promedio. Los acumulados medios anuales de las precipitaciones alcanzan un total de 1422.1 mm. La información generada constituye una herramienta para los tomadores de decisiones que le permitirán adaptarse y enfrentar con mayores conocimientos el cambio y variabilidad climática.

Resumo A importância da agricultura familiar em Nova Friburgo decorre da relevância da produção de hortaliças e flores, da manutenção de fragmentos florestais, da organização social e política para manutenção das conquistas e atendimento de anseios, como as estratégias agroecológicas a partir de evento climático extremo ocorrido em 2011. O objetivo foi caracterizar o município de Nova Friburgo nos aspectos territorial, ambiental, histórico, produtivo e organizacional, assim como destacar a presença de dinâmicas camponesas e empresariais nos sistemas de produção locais. Foram realizadas 47 entrevistas com agricultores e 4 com atores-chave in loco, utilizando de questionário semiestruturado com 57 perguntas, associado à aplicação de ferramenta participativa inovadora em que se diagnosticaram aspectos sociais, produtivos, ambientais e da dinâmica local da transição agroecológica. Ressalta-se a importância de fortalecer a ação de agentes de desenvolvimento rural sustentável, representados pela pesquisa participativa, extensão rural coletiva e assistência técnica continuada em agroecologia, aproximando grupos de agricultura orgânica e agricultura convencional. Conclui-se, a partir da caracterização do município, que a busca da sustentabilidade da agricultura familiar do município deve se apoiar em um processo de gestão social, integrado à ação de agentes externos, representados pela pesquisa participativa, extensão rural coletiva e assistência técnica em agroecologia e de valorização da riqueza histórica e diversidade de cultivos dessa produção, proveniente de agricultores familiares, organizados socialmente de forma associativa, visando ao desenvolvimento rural sustentável. flores florestais anseios 2011 territorial ambiental histórico organizacional locais atoreschave atores chave loco 5 perguntas sociais produtivos agroecológica Ressaltase Ressalta sustentável convencional Concluise, Concluise Conclui se, Conclui-se externos familiares associativa 201 20 2

Abstract The importance of family farming in Nova Friburgo stems from the importance of producing vegetables and flowers, maintaining forest fragments, social and political organization to maintain achievements and meet desires, such as agroecological strategies from the extreme weather event that occurred in 2011. The objective was to characterize the municipality in terms of territorial, environmental, historical, productive and organizational aspects, as well as to highlight the presence of peasant and business dynamics in local production systems. 47 interviews were carried out with farmers and 4 with key actors in loco, using a semi-structured questionnaire with 57 questions, associated with the application of an innovative participatory tool in which was diagnosed social, productive, environmental aspects and the local dynamics of the agroecological transition were characterized. It emphasizes the importance of strengthening the action of sustainable rural development agents, represented by participatory research, collective rural extension and continued technical assistance in agroecology, bringing groups of organic agriculture and conventional agriculture together. It is concluded from the characterization of the municipality, that the quest for sustainability of family farming in the municipality must be based on a social management process, integrated with the action of agents of sustainable rural development, represented by participatory research, collective rural extension and technical assistance in agroecology and valorization of the historical richness and crops diversity of this production, from family farmers, socially organized in an associative way, aiming at sustainable rural development. flowers fragments desires 2011 territorial systems loco semistructured semi structured 5 questions characterized research together process way 201 20 2

Resumen La importancia de la agricultura familiar en Nova Friburgo se deriva de la relevancia de la producción de hortalizas y flores, el mantenimiento de los fragmentos de bosque, la organización social y política para mantenerlos logros y satisfacerlas ansiedades, como las estrategias agroecológicas a partir del evento climático extremo de 2011. El objetivo fue caracterizar el municipio en términos territoriales, ambientales, históricos, productivos y organizacionales, además de destacar la presencia de dinámicas campesinas y empresariales en los sistemas productivos analizados. Se realizaron 47 entrevistas a agricultores y 4 actores clave in loco, mediante un cuestionario semiestructurado con 57 preguntas, asociado a la aplicación de herramienta participativa innovadora, en la que se caracterizaron los aspectos sociales, productivos, ambientales y las dinámicas locales de la transición agroecológica. Se destaca la importancia de fortalecer la acción de los agentes del desarrollo rural sostenible, representado por la investigación participativa, la extensión rural colectiva y la asistencia técnica continua en agroecología, reuniendo a grupos de agricultura orgánica y convencional. Se concluye, de la caracterización del municipio, que la búsqueda de la sostenibilidad de la agricultura familiar en el municipio debe estar sustentada en proceso de gestión social integrada a la acción de los agentes del desarrollo rural sostenible, representada por la investigación participativa, la extensión rural colectiva y la asistencia técnica en agroecología y la valorización de la riqueza histórica y diversidad de cultivos de esta producción, de agricultores familiares, socialmente organizados de forma asociativa, con miras al desarrollo rural sostenible. flores bosque ansiedades 2011 territoriales históricos organizacionales analizados loco 5 preguntas innovadora sociales agroecológica sostenible convencional concluye familiares asociativa 201 20 2

ABSTRACT Foundation: high blood pressure is a disease of multifactorial origin related to genetic and environmental factors, which has experienced a notable increase in its prevalence in recent years. It is a silent cause of morbidity and target organ damage in adolescents. Early detection of this condition is important as a risk marker for hypertension in adulthood. Objective: determine the prevalence and characterize arterial hypertension in adolescents 15-19 years of age. Methods: a cross-sectional study was carried out in the period from September to December 2022. The universe consisted of 1,561 adolescents aged 15-19 years, the sample being 1,444 (92.50 %). The sampling was systematic probabilistic. The variables analyzed were: age, sex, skin color, prehypertension and arterial hypertension (systolic, diastolic and systodiastolic) and severity of hypertension. The statisticians were analyzed: frequency, percentage and prevalence. Results: 8.21 % were diagnosed with prehypertension and 39 (7.44 %, apparent prevalence) with hypertension. 7.69 % of hypertensive patients had elevated diastolic blood pressure, 35.90 % had elevated systolic blood pressure, and 56.41 % both. 89.74 % of hypertensive patients were in stage 1 and 10.26 % in stage 2. Conclusions: the prevalence of arterial hypertension in the adolescents included in the research was higher than that reported in Cuba. The highest percentage of patients with prehypertension and high blood pressure was seen in people over 19 years of age, men, and black skin color.

RESUMEN Fundamento: la hipertensión arterial es una enfermedad de origen multifactorial relacionada con factores genéticos y ambientales, que ha experimentado un incremento notable en su prevalencia durante los últimos años. Es causa silente de morbilidad y daño de órganos diana en adolescentes. La detección precoz de este padecimiento es importante como marcador de riesgo de hipertensión en la adultez. Objetivo: determinar la prevalencia y caracterizar la hipertensión arterial en adolescentes de 15-19 años de edad. Métodos: se realizó un estudio de corte transversal en el periodo de septiembre a diciembre de 2022. El universo lo constituyeron los 1561 adolescente de 15-19 años de edad, la muestra 1444 (92,50 %). El muestreo fue probabilístico sistemático. Las variables analizadas fueron: edad, sexo, color de la piel, prehipertensión e hipertensión arterial (sistólica, diastólica y sistodiastólica) y severidad de la hipertensión. Se analizaron los estadígrafos: frecuencia, porcentaje y prevalencia. Resultados: el 8,21 % fueron diagnosticados con prehipertensión arterial y el 39 (7,44 %, prevalencia aparente) con hipertensión. El 7,69 % de los hipertensos tenían elevada la tensión arterial diastólica, el 35,90 % la sistólica y el 56,41 % ambas. El 89,74 % de los hipertensos se encontraban en el estadio 1 y el 10,26 % en estadio 2. Conclusiones: la prevalencia de la hipertensión arterial en los adolescentes incluidos en la investigación fue superior a la reportada en Cuba. El mayor porcentaje de pacientes con prehipertensión e hipertensión arterial se evidenció en mayores de 19 años de edad, varones y de color de piel negra.