Abstract Background: Salvia urica Epling is taxonomically and phylogenetically related to Salvia amarissima Ortega. The last species has pharmacological relevance by its contents of bioactive metabolites. Nowadays, Salvia urica has no reports about its chemical constituents and pharmacological activities. Hypothesis: Does the close relationship between S. amarissima and S. urica led both species produce similar specialized metabolites? Does Salvia urica display similar pharmacological effects as S. amarissima? Studied species: Salvia urica Epling (Lamiaceae). Study site and dates: The plant material was collected in Teopisca, Chiapas, Mexico, in December 2021. Methods: Metabolites of the acetone extract from Salvia urica were identified by GC-MS and HPLC-PDA profiling. In parallel, a phytochemical study was conducted, and the individual constituents purified, previously characterized by 1D NMR, were assayed on antihyperglycemic effect in diabetic mice and a charcoal-gum arabic-induced hyperperistalsis model in rats. Results: The volatile compounds identified by GC-MS were alkanes, aromatics and triterpenes. The principal constituents of the acetone extract of Salvia urica were amarissinin A and 5,6-dihydroxy-7,3',4'-trimethoxyflavone, which were also quantified by HPLC-PDA. The extract and both metabolites isolated showed an antihyperglycemic effect on streptozotocin-induced diabetic mice, suggesting a possible synergic effect. In addition, the compound 5,6-dihydroxy-7,3',4'-trimethoxyflavone (IC50 = 0.79 mg/kg) showed a better antipropulsive effect than loperamide (IC50 = 16.6 mg/kg). Conclusions: The phytochemical composition of an acetone extract of Salvia urica was determined by first time. The metabolites isolated from this plant support the phylogenetic relationship of S. urica with Salvia amarissima, and they showed antipropulsive and antihyperglycemic effects.

Resumen Antecedentes: Salvia urica Epling está relacionada taxonómica y filogenéticamente con Salvia amarissima Ortega. Ésta última tiene relevancia farmacológica por su contenido de metabolitos secundarios. A la fecha, Salvia urica no cuenta con reportes de sus constituyentes químicos y de sus actividades farmacológicas. Hipótesis: ¿La relación cercana entre S. amarissima y S. urica permite que ambas especies produzcan metabolitos similares de tipo terpenoide? ¿Salvia urica produce un efecto farmacológico similar a S. amarissima? Especies de estudio: Salvia urica Epling (Lamiaceae) Sitio y años de estudio: El material vegetal fue colectado en Teopisca, Chiapas, México, en diciembre de 2021. Métodos: Los constituyentes de las partes aéreas de Salvia urica, se identificaron por medio del perfilamiento por GC-MS y HPLC-PDA. Paralelamente, se realizó un estudio fitoquímico, y los constituyentes individuales, caracterizados por RMN de 1D, se evaluaron en un ensayo de actividad antihiperglucémica y en un modelo de hiperperistalsis. Resultados: Los componentes volátiles identificados por GC-MS son de tipo alcano, aromático y triterpenoide. Los principales constituyentes no volátiles, son amarissinina A y 5,6-dihidroxi-7,3',4'-trimetoxiflavona. Ambos metabolitos se cuantificaron por HPLC-PDA. El extracto de acetona y los dos metabolitos aislados mostraron efecto antihiperglucémico en ratones diabéticos, sugiriendo que hay un posible efecto sinérgico. El compuesto 5,6-dihidroxi-7,3',4'-trimetoxiflavona (IC50 = 0.79 mg/kg) mostró un mejor efecto antipropulsivo que loperamida (IC50 = 16.6 mg/kg). Conclusiones: Se identificaron por primera vez los metabolitos mayoritarios de Salvia urica. Dos de estos metabolitos se aislaron previamente de Salvia amarissima, apoyando su relación filogénetica. Los dos compuestos mostraron efecto antipropulsivo y antihiperlgucémico.

Abstract Honeybee venom (HBV) is a secretion produced by Apis mellifera L females and is their specialized defense mechanism for colony protection. Among the chemical components are some bioactive compounds to which various biological properties are attributed. It has been used for therapeutic purposes in a complementary or alternative way to traditional methods for various health conditions; nevertheless, the application of HBV always involves a risk for the individual due to the possibility of unfavorable effects. Currently, research work on HBV is incipient; because of this, the present work presents a review of the works related to the chemical composition, bioactive compounds, and their biological properties.

Resumen El veneno de abeja melífera (VAM) es una secreción producida por las hembras de Apis mellifera L y es su mecanismo de defensa especializado para protección de la colonia. Entre los componentes químicos, se encuentran algunos compuestos bioactivos a los que se les atribuyen diversas propiedades biológicas. Ha sido utilizado con fines terapéuticos de manera complementaria o alternativa a los métodos tradicionales para diversas afecciones de la salud; sin embargo, la aplicación del VAM siempre implica un riesgo para el individuo debido a que existe la posibilidad de presentar efectos desfavorables. Actualmente los trabajos de investigación relacionado con VAM son incipientes; debido a esto, el presente trabajo presenta una revisión de los trabajos relacionados con la composición química, compuestos bioactivos y sus propiedades biológicas.

Biologically active compounds in most spices possess antimicrobial and other important biomedical properties. There have been huge demands for natural immunity boosters (spices and herbs), considering the recent global pandemic and challenges relating to drug-resistant pathogens. This study was designed to compare the efficacy of ginger, garlic and turmeric spices against some pathogenic microorganisms. Aqueous extraction of spices, antimicrobial sensitivity and minimum inhibitory concentration tests were done using standard microbiological methods. Bioactive compounds were estimated using the gas chromatography-mass spectrometry (GC-MS) method. Aqueous extracts of ginger inhibited the growth of all test isolates except Streptococcus pneumoniae, with inhibition zones ranging between 0.9 mm and 13.5 mm. Escherichia coli, S. pneumoniae and Haemophilus influenzae were resistant to turmeric extracts, while the extract of garlic inhibited only four of the test pathogens. Inhibition zones for turmeric ranged between 4.4 mm and 10.9 mm, while those for garlic were between 4.7 mm and 11.5 mm. All the spice extracts did not inhibit microbial growth at 10-40%. An antibiotic spectrum indicated that Bacillus sp. was resistant to all but one, nitrofurantoin, which also inhibited the growth of almost all pathogens, except H. influenzae, with zones ranging between 10.5 mm and 11.6 mm. All test pathogens were resistant to cloxacillin except E. coli (10.6 mm). The major phyto-active compounds present in ginger are 2-Butanone,4-(4-hydroxy-3-methoxyphenyl), 1,3-Cyclohexadiene and 1-(4-Hydroxy-3-methoxyphenyl). SIGNIFICANCE: Conclusively, ginger, turmeric and garlic have varied inhibitory activities against diverse organisms, indicating their antimicrobial properties; however, ginger showed a higher inhibitory effect and more diverse antimicrobial property amongst selected isolates. Furthermore, certain bioactive compounds of biomedical importance were present. We therefore recommend the use of these spices as alternative natural food preservatives against spoilage organisms, as well as potential natural sources for bioactive compounds in drug development against pathogens.

Although South Africa is known as one of the most biodiverse countries in the world, based on its unique plants and animals, microorganisms have received much less attention. Microorganisms in general and actinobacteria in particular are an underexplored source of new medicines. Recent studies have demonstrated the presence of diverse cultivable actinobacteria from various biomes. However, investigations of the natural product diversity associated with these microorganisms are lacking. We hereby present a review of natural products isolated from South African actinobacteria together with their biological activities. Many of these natural products are structurally novel and include compounds belonging to the following classes: anthraquinones, isoflavonoids, ketolides, macrolides, macrolactams, tripeptides and depsipeptides. They show a wide range of biological activities including antibacterial, antifungal, cytotoxic and antitumour activities. SIGNIFICANCE: • This review highlights the importance of actinobacteria in the discovery of new medicines and summarises the state-of-the-art on their research in South Africa. • We reveal a gap in the exploitation of this resource and emphasise the opportunities for multidisciplinary research.

Abstract The consumption of vegetable oils is common in our daily diet. Rapeseed oil (canola oil) is the third most consumed edible oil in the world, followed by palm and soybean oils in terms of production. Rapeseed oil has a low proportion of saturated fatty acids, while it is rich in unsaturated fatty acids, as well as in healthy compounds such as phenols, tocopherols, phytosterols, carotenoids, and fat-soluble vitamins. However, processing technologies affect the content and functional activities of bioactive compounds in the oil. Aim: To assess any potential effect of hot or cold pressing and a refining process on the nutritional value and the profile of several bioactive compounds in canola oils produced in Chile. Methods: Canola oils were characterized regarding their fatty acid profile, phytosterol and tocopherol composition, total phenol content, and antioxidant activity, according to the mode of extraction (cold or hot pressed) and before and after bWeing subjected to a refining process. Results: Fatty acid profiles were not significantly different in any of the analyzed canola oils. Refining but not temperature extraction led to a sharp decrease of phytosterols and tocopherols. Hot pressing significantly increased the amount of total phenols (3.1 times) and the antioxidant activity measured by ORAC (3.1 times) and DPPH (8.3 times) compared to the cold extraction. However, phenolic concentration and antioxidant capacity decreased after refining. Conclusions: Refining processes should be adjusted to reduce the loss of bioactive compounds in the oil.

Resumen El consumo de aceites vegetales es habitual en nuestra dieta diaria. El aceite de colza (aceite de canola) es el tercer aceite comestible más consumido en el mundo, seguido por los aceites de palma y soja en términos de producción. El aceite de colza tiene una baja proporción de ácidos grasos saturados, mientras que es rico en ácidos grasos insaturados, así como en compuestos liposolubles saludables como fenoles, tocoferoles, fitoesteroles, carotenoides y vitaminas. Sin embargo, las tecnologías de procesamiento afectan el contenido y las actividades funcionales de los compuestos bioactivos en el aceite. Objetivo: Evaluar cualquier efecto potencial del prensado en caliente o en frío y un proceso de refinación sobre el valor nutricional y el perfil de varios compuestos bioactivos en los aceites de canola producidos en Chile. Métodos: Los aceites de canola se caracterizaron en cuanto a su perfil de ácidos grasos, composición de fitoesteroles y tocoferoles, contenido de fenoles totales y actividad antioxidante, según el modo de extracción (prensado en frío o en caliente) y antes y después de ser sometidos a un proceso de refinación. Resultados: Los perfiles de ácidos grasos no fueron significativamente diferentes en ninguno de los aceites de canola analizados. La refinación, pero no la extracción en caliente, condujo a una fuerte disminución de los fitoesteroles y tocoferoles. El prensado en caliente aumentó significativamente la cantidad de fenoles totales (3,1 veces) y la actividad antioxidante medida por ORAC (3,1 veces) y DPPH (8,3 veces) en comparación con la extracción en frío. Sin embargo, la concentración de fenoles y la capacidad antioxidante disminuyeron después del refinado. Conclusión: Los procesos de refinación deben ajustarse para reducir la pérdida de compuestos bioactivos en el aceite.

Abstract Phytopathogenic nematodes are a threat for agriculture, they cause plant diseases and economic losses worldwide. Currently, the pursuit of compounds of biological origin for nematode biocontrol has become a priority as an environmentally friendly alternative. Microorganisms-derived compounds have several strategies to reduce the populations of infectious juvenile nematodes. Although microorganisms and their metabolites are the focus of literature reports reviews on nematicidal control, interactions between fungi, bacteria, and nematodes, as well as the compounds that are generated in such interactions, are not highlighted. The aim of this review was to discuss the latest advances on chemical compounds secreted by microorganisms and their interaction mechanisms for biological control of phytopathogenic nematodes. Results were organized based on: i) mode of action, ii) infection process, iii) nematicide compounds, iv) interactions and field applications, and v) current challenges. The scope of this review contributes to a better comprehension of the versatility of bacterial and fungal compounds for their use in the development of management plans for nematode control.

Resumen Los nematodos fitopatógenos son una amenaza para la producción agrícola, causando enfermedades en las plantas y pérdidas económicas en todo el mundo. En la actualidad, la búsqueda de compuestos de origen biológico para estos nematodos, como una alternativa amigable con el ambiente, se ha convertido en prioridad. Los compuestos derivados de microorganismos cuentan con diferentes mecanismos de acción para reducir las poblaciones de juveniles infecciosos de nematodos. A pesar de que la literatura reporta revisiones sobre los microorganismos y sus metabolitos nematicidas, no se destacan las interacciones entre hongos, bacterias y nematodos, así como de los compuestos que se generan en tales interacciones. El objetivo de esta revisión fue discutir los avances recientes sobre compuestos químicos secretados por microorganismos y mecanismos de interacción para el control biológico de nematodos fitopatógenos. Los resultados se organizaron en función de i) mecanismos de acción, ii) proceso de infección, iii) compuestos nematicidas, iv) interacciones y aplicaciones a las soluciones en campo y v) desafíos actuales. El enfoque de esta revisión contribuye a una mejor comprensión de la utilidad de los compuestos producidos por bacterias y hongos que permitan incorporarlos en el desarrollo de planes de manejo para el control de nematodos.

Abstract Currently, the food industry prioritizes the safety and quality of products, facing the challenge of maintaining sensory and nutritional integrity. To address this challenge, emerging non-thermal technologies are being explored that offer significant advantages in improving food quality over conventional technologies. This review aims to provide a comprehensive understanding of how these innovative technologies can transform the traditional food processing landscape as we know it. Non-thermal technologies have the potential to reduce energy consumption for food production, processing and packaging, compared to conventional thermal treatments. Furthermore, these technologies are particularly suitable for efficiently preserving bioactive compounds present in foods. This review describes the fundamental principles, applications, advantages and limitations of emerging technologies in food processing. These technologies include pulsed electric field, ultrasound, cold plasma, high pressure, irradiation, light-emitting diodes, pulsed light and oscillating magnetic fields. Despite the large number of studies on the subject, more research is required to optimize and improve the efficiency of the application of these technologies, alone or in combination, in food processing. The bioaccessibility and bioactivity of the compounds, nutritional value, shelf life and sensory aspects may be variables of interest.

Resumen En la actualidad, la industria alimentaria da prioridad a la seguridad y calidad de los productos, enfrentándose al desafío de mantener la integridad sensorial y nutricional. Para abordar este desafío, se vienen explorando tecnologías no térmicas emergentes que ofrecen ventajas significativas en la mejora de la calidad de los alimentos frente a las tecnologías convencionales. Esta revisión tiene como objetivo proporcionar una comprensión integral de cómo estas tecnologías innovadoras pueden transformar el panorama tradicional del procesamiento de alimentos tal como lo conocemos. Las tecnologías no térmicas tienen el potencial de reducir el consumo de energía destinado a la producción, procesamiento y envasado de alimentos, en comparación con los tratamientos térmicos convencionales. Además, estas tecnologías son particularmente adecuadas para preservar eficientemente los compuestos bioactivos presentes en los alimentos. En esta revisión se describen los principios fundamentales, aplicaciones, ventajas y limitaciones de las tecnologías emergentes en el procesamiento de alimentos. En estas tecnologías se incluyen, campo eléctrico pulsado, ultrasonido, plasma frío, alta presión, irradiación, diodos emisores de luz, luz pulsada y campos magnéticos oscilantes. A pesar de la gran cantidad de estudios respecto al tema, se requiere mayor investigación para optimizar y mejorar la eficiencia de la aplicación de estas tecnologías, solas o en combinación, en el procesamiento de alimentos. La bioaccesibilidad y bioactividad de los compuestos, el valor nutricional, la vida útil y los aspectos sensoriales pueden ser variables de interés.

Abstract This study investigated consumers' perceptions of adding bee pollen to bread. An attitude questionnaire composed of 48 statements related to "general health," "light products," "natural products," "salty products," "food as a reward," "pleasure," and "food neophobia" was answered by the participants, who indicated their level of agreement with each statement according to a 5-point Likert scale, ranging from (1) "totally disagree" to (5) "totally agree." A check-all-that-apply (CATA) questionnaire was also employed to characterize 12 visual stimuli. The creation of stimuli was carried out using a factorial design, resulting in 12 images of bread. Three clusters of consumers were identified, each associating positive attributes with stimuli containing bee pollen, regardless of the health claim, while negative attributes were associated with stimuli without added pollen. The main positive drivers of liking were "I would buy," "attractive," "pleasant color," "healthy," "light," and "natural." On the other hand, the negative drivers of liking were "unattractive," "I don't like it," "I wouldn't buy," "hard," and "unpleasant color." This study provides valuable information for developing healthier bread using natural ingredients with bioactive compounds, such as bee pollen.

ABSTRACT: It is estimated that seven hundred billion tons of cocoa beans are processed worldwide per year, in contrast to its production process, only the seeds are used, which represents 20-23% of the fruit, the other proportion of the fruit such as the cob or husk, placenta, husk and mucilage juice are the main byproducts and are lost as waste. Due to its availability and high nutritional value, it is being used in new areas of application. Therefore, this review focuses on updating knowledge about the use of cocoa by-products in animal production, new approaches to its viability and sustainability. In this context, the byproducts are used in feeding monogastric and polygastric animals, reporting favorable results and greater profitability, representing a viable and valuable alternative for animal feed. It has been proven that these byproducts are composed of various bioactive compounds of pharmaceutical, industrial and food interest, which are already giving them new uses and applications. It is anticipated that cocoa by-products will be widely adopted for other purposes. Consequently, it is expected that soon its availability for animal feed will decrease and its prices will increase.

RESUMEN: Se estima que a nivel mundial se procesa setecientos mil millones de toneladas al año de grano de cacao, en contraste a su proceso productivo, solo se aprovecha las semillas, que representa un 20%-23% del fruto, la otra proporción del fruto como la mazorca o cáscara, placenta, cascarilla y jugo de mucílago son los principales subproductos y se pierde como desecho. Debido a la disponibilidad y su alto valor nutricional, se le está dando diferentes usos en nuevas áreas de aplicación. Por ello, esta revisión se centra en actualizar conocimientos sobre el uso de subproductos del cacao en la producción animal, nuevos enfoques su viabilidad y su sostenibilidad. En este contexto, los subproductos son utilizados en la alimentación en monogástricos y poligástricos, reportando resultados favorables y mayor rentabilidad, representando una alternativa viable y valiosa para la alimentación animal. Se ha comprobado que estos subproductos están compuestos por diversos compuestos bioactivos de interés farmacéutico, industrial y alimenticio, que ya le están dando nuevos usos y aplicaciones. Se anticipa que los subproductos de cacao serán ampliamente adoptados con otros fines. En consecuencia, se espera que en el futuro próximo su disponibilidad para la alimentación animal disminuya y sus precios aumenten.

ABSTRACT: More and more countries are incorporating new safety, health and food safety regulations, responding to the growing concern about the use of antibiotic growth promoters (APC) in animal production, the scientific community has been forced to seek new alternatives that reduce or replace the use of (APC), with the ability to safeguard public health. Within these alternatives, phytobiotics are considered a very promising option, since they are natural substances made up of complex bioactive compounds. This document reviews the different applications and functionality of phytobiotics in animal production. Firstly, the main effects and mechanism of action are shown, highlighting and explaining their functionality as antioxidants, anti-inflammatory, antimicrobial, growth promoters, improvers of the organoleptic characteristics of foods and reduces the generation of gases that cause the greenhouse effect. Second, notable applications of phytobiotics to different species of zootechnical interest and their effect are reviewed. Finally, their bioavailability and the current and future challenges of phytobiotics are investigated.

RESUMEN: Cada vez más países van incorporando nuevas normativas de inocuidad, seguridad sanitaria y alimentaria, respondiendo a la progresiva preocupación por el uso de antibióticos promotores de crecimiento (APC) en producción animal; la comunidad científica se ha visto obligado a buscar nuevas alternativas que reduzcan o sustituyan el uso de APC, con la capacidad de salvaguardar la salud pública. Dentro de esas alternativas, los fitobióticos son considerados una opción muy prometedora, ya que son sustancias naturales constituidas por complejos compuestos bioactivos. Este documento revisa las distintas aplicaciones y la funcionalidad de los fitobióticos en la producción animal. En primer lugar, se manifiesta los principales efectos y mecanismo de acción, destacando y explicando su funcionalidad como antioxidantes, antiinflamatorios, antimicrobianos, promotores de crecimiento, mejoradores de las características organolépticas de los alimentos y reductores de la generación de gases causantes del efecto invernadero, Segundo, se revisan aplicaciones destacadas de los fitobióticos a las distintas especies de interés zootécnico y su efecto que estos tienen. Finalmente, se indaga su biodisponibilidad y los desafíos actuales y futuros de los fitobióticos.

Resumo Os produtos naturais têm se mostrado muito eficazes contra várias doenças desafiadoras, incluindo câncer e infecções bacterianas. O gálio tricorne é uma importante fonte de produtos naturais, ainda pouco explorada, apesar de sua profunda proeminência etnomedicinal. O presente estudo foi desenvolvido para explorar o potencial biológico de G. tricorne e extrair e isolar constituintes químicos de sua parte aérea e sementes, respectivamente, juntamente com a identificação de seus constituintes químicos. A triagem fitoquímica foi realizada para descobrir a presença de metabólito secundário em G. tricorne, extrato metanólico bruto (Gt.Crd) que foi obtido da parte aérea enquanto os ácidos graxos foram extraídos das sementes, que posteriormente foram analisadas por GCMS. Da mesma forma, os métodos Well Diffusion e MTT foram usados para atividade antibacteriana e ensaio de linha de células cancerígenas, respectivamente. Para avaliar o potencial citotóxico, foram utilizadas artémias. Da mesma forma, na análise de cromatografia gasosa-espectroscopia de massa (GC-MS) um número total de 23 compostos foi identificado no extrato de Gt.Crd, dos quais 7 compostos foram selecionados para ter algum tipo de perfil de toxicidade. Da mesma forma, 5 ácidos graxos foram identificados nas sementes de G. tricorne. Além disso, entre as frações, a fração clorofórmio (Gt.Chf) apresentou maior zona de inibição (ZOI), 20,37 mm, seguida de Gt.Crd 18,40 mm contra S. aureus e S. pyogenes, respectivamente. Na citotoxicidade Gt.Chf foi mais ativo seguido pela fração acetato de etila (Gt.Eta), exibindo 88,32±0,62% (LC50=60 µg/mL) e 73,95±2,25% (LC50=80 µg/mL) respectivamente a 1000 µg/ concentração de mL da amostra testada. Gt.Chf exibiu maior atividade inibitória da linha celular (IC50 = 61 µg/mL) contra a linha celular HeLa. Da mesma forma, Gt.Crd apresentou valores de IC50 de 167,84 µg/mL e 175,46 µg/mL contra linha celular HeLa e NIH/3T3, respectivamente. Com base na revisão de literatura e triagens, pode-se concluir que a parte aérea e as sementes de G. tricorne são as ricas fontes de compostos bioativos. Os resultados do presente estudo também autenticam a base científica para os usos etnomedicinais de G. tricorne.

Abstract Natural products have long been proven very effective against various challenging diseases including cancer and bacterial infections. Galium tricorne is one of the important source of natural products, which has not been explored till date in spite of its profound ethnomedicinal prominence. The current study has been designed to explore the biological potential of G. tricorne and to extract and isolate chemical constituents from its aerial part and seeds respectively along with identification of their chemical constituents. Phytochemical screening was performed to figure out the presence of secondary metabolite in G. tricorne. Crude Methanolic extract (Gt.Crd), which was obtained from the aerial part while the fatty acids were extracted from the seeds, which were later on analyzed by GCMS. Similarly, Well Diffusion and MTT method were used for antibacterial activity and cancer cell line assay respectively. To evaluate the cytotoxic potential, brine shrimps were used. Likewise, in Gas Chromatography-Mass Spectroscopy (GC-MS) analysis a total number of 23 compounds were identified in Gt.Crd extract out of which 7 compounds were sorted out to have some sort of toxicity profile. In the same fashion, 5 fatty acids were identified in the seeds of G. tricorne. Moreover, among the fractions, chloroform fraction (Gt.Chf) exhibited greater zone of inhibition (ZOI) 20.37 mm followed by Gt.Crd 18.40 mm against S. aureus and S. pyogenes respectively. In cytotoxicity Gt.Chf was more active followed by ethyl acetate fraction (Gt.Eta) by exhibiting 88.32±0.62% (LC50=60 µg/mL) and 73.95±2.25% (LC50=80 µg/mL) respectively at 1000 µg/mL concentration of the tested sample. Gt.Chf exhibited greater cell line inhibitory activity (IC50=61 µg/mL) against HeLa cell line. Similarly, Gt.Crd displayed IC50 values of 167.84 µg/mL and 175.46 µg/mL against HeLa and NIH/3T3 cell line respectively. Based on the literature review and screenings, it may be concluded that the aerial part and seeds of G. tricorne are the rich sources of bioactive compounds. The results of the current study also authenticate the scientific background for the ethnomedicinal uses of G. tricorne.

Resumo Fungos endofíticos colonizam as regiões inter e/ou intracelulares de tecidos vegetais saudáveis e possuem uma relação de simbiose com seus hospedeiros. Esses microrganismos produzem antibióticos, enzimas e outros compostos bioativos que os permitem sobreviver em habitats competitivos com outros microrganismos. Além disso, os metabólitos secundários conferem proteção à planta hospedeira contra outros patógenos bacterianos e fúngicos e/ou podem promover o crescimento vegetal. Os fungos endofíticos são considerados uma fonte promissora de produtos naturais bioativos, que podem ser otimizados por meio de mudanças nas condições de cultivo. A exploração de novas moléculas bioativas produzidas por esses microrganismos tem chamado a atenção dos pesquisadores. A diversidade química e funcional dos produtos naturais de fungos endofíticos exibe um amplo espectro de aplicações na medicina, agricultura, indústria e meio ambiente. Os fungos endofíticos também podem aumentar os efeitos fotoprotetores e a eficiência fotoquímica nas plantas hospedeiras. As abordagens ômicas modernas têm facilitado as pesquisas sobre as interações simbióticas entre plantas e fungos endofíticos. Portanto, a pesquisa sobre fungos endofíticos pode ajudar na descoberta de novas biomoléculas para diversas aplicações biotecnológicas e a desenvolver uma agricultura sustentável.

Abstract Endophytic fungi colonize the inter- and/or intracellular regions of healthy plant tissues and have a close symbiotic relationship with their hosts. These microorganisms produce antibiotics, enzymes, and other bioactive compounds that enable them to survive in competitive habitats with other microorganisms. In addition, secondary metabolites confer protection to their host plant against other bacterial and fungal pathogens and/or can promote plant growth. Endophytic fungi are viewed as a promising source of bioactive natural products, which can be optimized through changes in growing conditions. The exploration of novel bioactive molecules produced by these microorganisms has been attracting attention from researchers. The chemical and functional diversity of natural products from endophytic fungi exhibits a broad spectrum of applications in medicine, agriculture, industry and the environment. Fungal endophytes can also enhance the photoprotective effects and photochemical efficiency in the host plants. Modern omic approaches have facilitated research investigating symbiotic plant-endophytic fungi interactions. Therefore, research on endophytic fungi can help discovery novel biomolecules for various biotechnological applications and develop a sustainable agriculture.

Resumo Chrozophora tinctoria (L.) A.Juss. é uma planta anual herbácea, monoica, usada tradicionalmente para curar distúrbios gastrointestinais. O presente estudo foi realizado para encontrar os compostos bioativos por Cromatografia Gasosa-Espectrometria de Massa (GC-MS), a toxicidade aguda do potencial inibitório da acetilcolinesterase e a atividade emética presente na fração acetato de etila de Chrozophora tinctoria (EAFCT) e fração diclorometano de Chrozophora tinctoria (DCMFCT). Os compostos detectados em ambas as frações foram principalmente ácidos graxos, com cerca de sete compostos em EAFCT e 10 em DCMFCT. Estes incluíam compostos farmacologicamente ativos, como a imipramina, usada para tratar a depressão, ou éster metílico do ácido hexadecanoico, um antioxidante, nematicida, pesticida, hipocolesterolêmico, ácido 9,12,15-octadecatrienoico, éster etílico, (Z,Z,Z)- é usado como preventivo do câncer, antiartrítico, anti-histamínico, hepatoprotetor, inseticida, nematicida, ácido pentadecanoico, 14-metil-, éster metílico tem atividades antifúngicas, antimicrobianas e antioxidantes, ácido 10-octadecanoico, éster metílico tem a propriedade de diminuir o colesterol no sangue, antioxidante e antimicrobiano, o 1-Eicosanol é usado como antibacteriano, o 1-Hexadeceno possui atividades antibacteriana, antioxidante e antifúngica. Ambas as frações DCMFCT e EAFCT inibiram a atividade da acetilcolinesterase (AChE) com valores de IC50 de 10µg e 130µg, respectivamente. Ambas as frações foram consideradas tóxicas de maneira dose-dependente, induzindo vômitos a partir de 0,5g e letargia e mortalidade de 3g a 5g para cima. Ambas as frações combinadas com água destilada apresentaram atividade altamente emética. O aumento significativo no número de vômitos foi demonstrado pelo EAFCT mais água destilada, que são 7,50±1,29, 7,25±3,10 e 11,75±2,22 número de vômitos nas concentrações de 1g, 2g e 3g/kg, respectivamente, enquanto DCMFCT mais água destilada mostrou 5,25±2,22, 7,50±2,52 e 10,25±2,22 número de vômitos em 1g, 2g e 3g/kg, respectivamente. A droga padrão antiemética metoclopramida tem um impacto maior contra a emese induzida por ambas as frações do que o dimenidrinato. A metoclopramida diminui o número de vômitos causados por EAFCT para 1,00±0,00, 2,00±0,00, 4,00±1,00 a 1g, 2g e 3g/kg, sequencialmente, enquanto o dimenidrinato diminui o número de vômitos para 1,33±0,58, 2,33±1,15, 4,33± 0,58 a 1g, 2g e 3g, respectivamente. Da mesma forma, a metocloprimida diminui o número de vômitos causados por DcmCt de 5,25±2,22, 7,50±2,52, 10,25±2,22 para 1,33±0,58, 2,33±1,1, 4,33±0,58 nas concentrações de 1g, 2g e 3g/kg. O presente estudo é o primeiro relato documentado que valida cientificamente o uso folclórico de Chrozophora tinctoria como agente emético.

Abstract Chrozophora tinctoria (L.) A.Juss. is herbaceous, monecious annual plant used traditionally to cure gastrointestinal disorders. The present study was carried out to find the bioactive compounds by Gas Chromatography-Mass Spectrometry, the acetylcholinesterase inhibitory potential acute toxicity, and emetic activity present in the ethyl acetate fraction of Chrozophora tinctoria (EAFCT) and dichloromethane fraction of Chrozophora tinctoria (DCMFCT). The compounds detected in both fractions were mostly fatty acids, with about seven compounds in EAFCT and 10 in DCMFCT. These included pharmacologically active compounds such as imipramine, used to treat depression, or hexadecanoic acid methyl ester, an antioxidant, nematicide, pesticide, hypocholesterolemic, 9,12,15-Octadecatrienoic acid, ethyl ester, (Z,Z,Z)- is used as a cancer preventive, antiarthritic, antihistaminic, hepatoprotective, insectifuge, nematicide, Pentadecanoic acid, 14-methyl-, methyl ester have antifungal, antimicrobial and antioxidant activities, 10-Octadecanoic acid, methyl ester have the property to decrease blood cholesterol, Antioxidant and antimicrobial, 1-Eicosanol is used as an antibacterial, 1-Hexadecene has antibacterial, antioxidant, and antifungal activities. Both DCMFCT and EAFCT fractions inhibited acetylcholinesterase (AChE) activity with IC50 values of 10 µg and 130 µg, respectively. Both the fractions were found to be toxic in a dose-dependent manner, inducing emesis at 0.5g onward and lethargy and mortality from 3–5 g upwards. Both the fractions combined with distilled water showed highly emetic activity. The significant increase in the number of vomits was shown by EAFCT plus distilled water which are 7.50±1.29, 7.25±3.10, and 11.75±2.22 number of vomits at 1g, 2g, and 3g/kg concentration respectively, while DCMFCT plus distilled water showed 5.25±2.22, 7.50±2.52 and 10.25±2.22 number of vomits at 1g, 2, and 3g/kg correspondingly. The antiemetic standard drug metoclopramide has a higher impact against the emesis induced by both the fractions than dimenhydrinate. Metoclopramide decreases the number of vomits caused by EAFCT to 1.00±0.00, 2.00±0.00, 4.00±1.00 at 1g, 2, and 3g/kg sequentially, while dimenhydrinate decreases the number of vomits to 1.33±0.58, 2.33±1.15, 4.33±0.58 at 1g, 2, and 3g respectively. In the same way, Metochloprimide decreases the number of emesis caused by DcmCt from 5.25±2.22, 7.50±2.52, 10.25±2.22 to 1.33±0.58, 2.33±1.1, 4.33±0.58 at 1g, 2, and 3g/kg concentrations. The present study is the first documented report that scientifically validates the folkloric use of Chrozophora tinctoria as an emetic agent.

Resumo O estudo teve como objetivo determinar os componentes bioativos e atividades antibacterianas de folhas de extrato metanólico frio (CMMEL) de Artemisia absinthium L. CMMEL foi testado para fitoquímicos, análises GC-MS foram realizadas para identificar os componentes bioativos e propriedades antibacterianas. A análise fitoquímica da CMMEL revelou a presença de carboidratos, esteroides, saponinas e aminoácidos. A análise GC-MS de CMMEL de A. absinthium L. revelou vários compostos bioativos exclusivos, incluindo margaspidina, estigmasterol, ácido octadecanoico, hexadecanoico, corimbolona e biciclo [2.2.1] heptan-2. O espectro antibacteriano de CMMEL pode ser sequenciado como Streptococcus pyogenes (8,83 ± 1,8 mm) > Escherichia coli (7,6 ± 0,6 mm) > Bacillus subtilis (6,6 ± 1,6 mm) > Klebsiella pneumoniae (6,5 ± 0,3 mm) > Pseudomonas aeruginosa (6,1 ± 1,1 mm) > Staphylococcus aureus (5,23 ± 0,8 mm). Embora o CMMEL de A. absinthium L. tenha mostrado a presença de muitos compostos bioativos, mas não inibiu substancialmente o crescimento de bactérias gram-positivas ou gram-negativas, de acordo com os achados.

Abstract The study aimed to determine the bioactive components and antibacterial activities of cold methanolic extract leaves (CMMEL) of Artemisia absinthium L. CMMEL was tested for phytochemicals, GC-MS analyses was performed to identify the bioactive components, and anti-bacterial properties. The phytochemical analysis of CMMEL revealed the presence of carbohydrates, steroids, saponins, and amino acids. GC-MS analysis of CMMEL of A. absinthium L. revealed several unique bioactive compounds, including margaspidin, stigmasterol, octadecanoic acid, hexadecanoic, corymbolone, and bicyclo [2.2.1] heptan-2. The antibacterial spectrum of CMMEL can be sequenced as Streptococcus pyogenes (8.83 ± 1.8 mm) > Escherichia coli (7.6 ± 0.6 mm) > Bacillus subtilis (6.6 ± 1.6 mm) > Klebsiella pneumoniae (6.5 ± 0.3 mm) > Pseudomonas aeruginosa (6.1 ± 1.1 mm) > Staphylococcus aureus (5.23 ± 0.8 mm). Although the CMMEL of A. absinthium L. showed the presence of many bioactive compounds but did not substantially inhibit the growth of Gram-positive or Gram-negative bacteria, according to the findings.

Abstract Acerola (Malpighia emarginata DC.) is a super-fruit with high ascorbic acid content and its quality can be highly affected by the genetic and environmental conditions. This systematic review aims to provide an overview of the influence of genetic variability on acerola quality traits. It was performed according to the Preferred Reporting Items for Systematic reviews and Meta-Analysis (PRISMA) recommendations. PubMed, Scopus and SciELO electronic databases were searched using terms acerola, selection, and genotypes. 29 studies were selected after assessing articles for eligibility criteria, which reported data on 22 quality parameters. A high genetic diversity was observed for all quality traits. Soluble solids and ascorbic acid contents are the main parameters determined in studies with acerola. Titratable acidity, SS/TA ratio and pH are also evaluated in most studies. Different studies have already identified possible genotypes for use in acerola breeding programs based on fruit quality, both for launching new cultivars and for use as parents in crosses. Our review is a useful basis for acerola breeding programs and germplasm conservation. Future studies are required to further identify and quantify bioactive compounds in acerolas of different genotypes.