The acetalization or transacetalization reactions produce acetals or ketals used in cosmetics, food, pharmaceuticals, and fuel additives. Besides synthesizing several products, the acetalization or transacetalization reactions can protect carbonyl groups, 1,2 and 1,3-diols in multi-step synthesis. This work studies the transacetalization of glycerol with 2,2-dimethoxypropane (2,2-DMP) to yield 2,2-dimethyl-4-hydroxymethyl-1,3-dioxolane (solketal) by catalyzing with USY, HBeta, and HZSM-5 zeolites under cleaner and mild reaction conditions (reaction temperature: 25 °C; 2,2-DMP/glycerol molar ratio: 1; reaction time: 1 h; and catalyst concentration: 0.05-5 wt.%). For catalyst concentration equal to or greater than 2,5 wt.%, glycerol conversion stabilized near 96-97% for the three zeolites tested. The product selectivities also assume a constant value, close to 97% for solketal. For the lowest concentration of catalyst, the influence of the zeolite properties on the glycerol conversion, such as acidity and the strong/weak acid site ratio, was observed. Concerning the selectivity of the products, the results suggested that it can be based on zeolite topology, active sites at the particle surface, and the relative amount of micro and mesoporous HBeta, the most selective catalyst for acetals production, was reused at least once without loss of activity and selectivity. cosmetics food pharmaceuticals additives products groups 12 2 1, 1,3diols 13diols diols 1,3 3 multistep multi step synthesis 2,2dimethoxypropane 22dimethoxypropane dimethoxypropane 2,2 2,2DMP 22DMP DMP (2,2-DMP 2,2dimethyl4hydroxymethyl1,3dioxolane 22dimethyl4hydroxymethyl13dioxolane dimethylhydroxymethyldioxolane dimethyl 4 hydroxymethyl dioxolane solketal (solketal USY HBeta HZSM5 HZSM 5 HZSM- temperature °C C 2,2DMP/glycerol 22DMPglycerol DMPglycerol DMP/glycerol ratio time h 0.055 0055 0.05 0 05 0.05- wt.%. wt wt.% . wt.%) 2, 9697% 9697 96 97 96-97 tested value strongweak strong weak observed topology surface production 3diols 13 2dimethoxypropane 22 2DMP 2dimethyl4hydroxymethyl1 3dioxolane 055 005 0.0 wt. 969 9 96-9 dimethylhydroxymethyl 2dimethyl4hydroxymethyl 00 0. 96-

Gold and platinum bimetallic nanoparticles, Au@PtNPs, have gained attention due to their plasmonic properties. The controlled synthesis of Au@PtNPs involves complex parameters, and the resulting synergy between Au and Pt introduces possibilities for tailoring their properties. This study explores the effects of key-parameters of synthesis (gold core diameters, reaction time, and Pt concentration) on the final properties of Au@PtNPs. Gold nanoparticles of varying diameters were synthesized and used as cores for the reduction of hexachloroplatinic acid, forming a surrounding shell of Pt nanoparticles. The parameters were systematically tuned to understand their impact on morphology, dimension, stability, and plasmonic properties of Au@PtNPs. Increasing Pt precursor concentration resulted in thicker and denser Pt shells, broadening the localized surface plasmon resonance (LSPR) band and improving Au@PtNPs stability. These properties are essential for applications such as photothermal treatment. The synthesis achieved satisfactory products within just 1 h of Pt4+ reduction at mild temperature without using surfactants. Only limited changes in plasmonic properties were observed after 4 h of synthesis, suggesting an optimal reaction period. Manipulating Au core diameter provided LSPR band control, with smaller cores exhibiting greater broadening towards the infrared region. This systematic exploration provided valuable insights for understanding key-parameters governing the synthesis and properties of Au@PtNPs. AuPtNPs PtNPs keyparameters key gold time acid morphology dimension stability shells (LSPR treatment Pt4 surfactants period control region

This study expands and shows the versatility of applications in hydrophilic interaction chromatography coupled with triple quadrupole mass spectrometry (HILIC-MS/MS) using a FRULIC-N column to determine 31 phenolic compounds in beverage industry residues (coffee, apple juice, beer, and wine). Optimization, via Doehlert design, determined the acetonitrile proportion (50-90%) and pH (3.0-7.0) in the mobile phase (MP). A 22 factorial design assessed the concentration of ammonium acetate (10-110 mmol L-1) in the MP and column temperature (20-60 °C). Injection volume (5-45 µL) was univariately optimized. Separations at 60 °C reduced chromatographic run time to less than 11 min. Gradient elution (500 µL min-1) employed an MP comprising acetonitrile and ammonium acetate (110 mmol L-1, pH 7). Validation demonstrated average coefficient of determination (R2) 0.9707, limit of detection 0.001-0.503 mg L-1 and quantification 0.004-1.524 mg L-1, precision < 12.2%, recovery 92.4-110.8%. The method was applied to five residues, indicating its viability for determining phenolics in beverage production residues. HILICMS/MS HILICMSMS HILIC MS/MS MS (HILIC-MS/MS FRULICN FRULIC N 3 coffee, coffee (coffee juice beer wine. wine . wine) Optimization 5090% 5090 50 90% 90 (50-90% 3.07.0 3070 3.0 7.0 0 7 (3.0-7.0 MP. (MP) 2 10110 10 110 (10-11 L1 L 1 2060 20 (20-6 °C. C °C) 545 5 45 (5-4 optimized 6 min 500 (50 min1 min-1 (11 L1, 1, 7. 7) R2 R (R2 09707 9707 0.9707 0.0010.503 00010503 0.001 0.503 001 503 0.001-0.50 L- 0.0041.524 00041524 0.004 1.524 004 524 0.004-1.52 122 12 12.2% 92.4110.8%. 9241108 92.4 110.8%. 92 4 8 92.4-110.8% HILICMS MSMS 509 9 (50-90 07 3.07. 307 30 3. 70 (3.0-7. (MP 1011 (10-1 206 (20- 54 (5- (5 min- (1 (R 0970 970 0.970 0010 0.0010.50 0001050 0001 0.00 0503 0.50 00 0.001-0.5 0041 0.0041.52 0004152 0004 1524 1.52 52 0.004-1.5 12.2 4110 92.4110.8% 924110 924 92. 1108 110.8% 92.4-110.8 (50-9 3.07 (3.0-7 101 (10- (20 ( 097 97 0.97 0.0010.5 000105 000 0.0 050 0.5 0.001-0. 0.0041.5 000415 152 1.5 0.004-1. 12. 411 92.4110.8 92411 110.8 92.4-110. (50- (3.0- (10 (2 09 0.9 0.0010. 00010 0. 05 0.001-0 0.0041. 00041 15 1. 0.004-1 41 92.4110. 9241 110. 92.4-110 (3.0 0.0010 0.001- 0.0041 0.004- 92.4110 92.4-11 (3. 92.411 92.4-1 (3 92.41 92.4-

Acetic acid bacteria (AAB) are versatile organisms that catalyze the conversion of a wide range of carbon sources into biomolecules of great industrial interest. In this study, we exploited the ability of Gluconobacter spp. to synthesize levans. Among the isolated strains, Gluconobacter cerinus UELBM11 produced approximately 14.0 g L−1 of levan under non-optimized conditions. Gas chromatography-mass spectrometry (GC-MS), Fourier transform infrared spectroscopy (FTIR), and nuclear magnetic resonance (NMR) analyses confirmed that levan obtained from G. cerinus UELBM11 consisted of a β-(2→6)-D-fructose backbone with some β-(2→1) ramifications. The average molecular weight (Mw) of the purified levan was 8.78 × 105 Da. Thermogravimetric/differential thermogravimetric (TGA/DTG) analysis indicated high thermal stability, with the maximum decomposition rate observed at 227.44 °C. Scanning electron microscopy (SEM) revealed a microporous morphology, and the antioxidant activity assays demonstrated that levan had a high scavenging capacity of 2,2’-azino-bis (3-ethylbenzothiazoline-6-sulfonic acid) (ABTS) and hydroxyl radicals. Therefore, it has been demonstrated the levan produced by G. cerinus UELBM11 is a promising natural antioxidant and, owing to its microporosity and excellent thermal properties and stability, is a potential candidate as an additive in cosmetics, pharmaceuticals, and food products. AAB (AAB interest study spp levans strains UELBM UELBM1 140 14 0 14. L1 L 1 L− nonoptimized non optimized conditions chromatographymass chromatography mass GCMS, GCMS GC MS , (GC-MS) FTIR, FTIR (FTIR) NMR (NMR G β2→6Dfructose β26Dfructose βDfructose β 2→6 D fructose 2 6 β2→1 β21 2→1 β-(2→1 ramifications Mw (Mw 878 8 78 8.7 10 Da Thermogravimetricdifferential Thermogravimetric differential TGA/DTG TGADTG TGA DTG (TGA/DTG stability 22744 227 44 227.4 C °C SEM (SEM morphology 2,2azinobis 22azinobis azinobis 2,2 azino bis 3ethylbenzothiazoline6sulfonic ethylbenzothiazolinesulfonic 3 ethylbenzothiazoline sulfonic ABTS (ABTS radicals Therefore cosmetics pharmaceuticals products (GC-MS (FTIR β2 6Dfructose Dfructose 26 2→ β2→ 21 β-(2→ 87 7 8. 2274 22 4 227. 2azinobis 2, β-(2 β-( β-

With the increase in life expectancy and the significant incidence of lesions of the musculoskeletal system, both the public and private sectors seek improvements in their products and processes in order to contribute to the health of the population. Every year tons of chicken eggshell (CES) from domestic consumption are released in environment and the present work aims the production of a synthetic ceramic bone substitute using the eggshell as a source of calcium ions. According to the methodology, 5, 10, 15 and 20 mol% of iron ions were used and the characterization assays demonstrated the formation of a double calcium iron phosphate - Ca9Fe(PO4)7. MG63 cells were cultured on test specimens to cell viability assay and to each doped group analyzed, verifying cell compatibility with the studied compounds, as well as a good adhesion profile. Scanning electron microscopy (SEM) of the cells showed that material surface favored cell adhesion and the results demonstrated that the production of the compounds were viable to Ca9Fe(PO4)7 phase. So, in the future, it will be possible to have a final comprehensive biological compatibility of the prototype for further in vitro and in vivo assays. system population CES (CES methodology 5 10 1 2 mol Ca9FePO47. Ca9FePO47 CaFePO Ca9Fe PO4 7. 7 Ca Fe PO MG MG6 analyzed profile SEM (SEM Ca9Fe(PO4) phase So future FePO Ca9FePO4 CaFe Ca9Fe(PO4 Ca9FePO Ca9Fe(PO

Computational predictive approaches present themselves as an attractive alternative in the search for new compounds that may present toxic or growth regulatory activity in Aedes aegypti. Aspergillus species is a producer of secondary metabolites with diverse biological activities. In this study, it was possible to evaluate the pharmacokinetic and toxicological properties in silico, as well as the prediction of the insecticidal biological activities of the juvenile hormone of natural substances produced by the genus Aspergillus. Initially, 187 molecules were cataloged from various species of Aspergillus spp., and only seven molecules of indole alkaloids were found to exhibit a toxic dose 50% (TD50) after conducting toxicity predictions. The molecular dynamic simulation trajectories were utilized to study parameters such as root mean square deviation, root mean square fluctuation, radius of gyration and intermolecular hydrogen bond to understand the behavior and stability of proposed compounds in the binding pocket of the target protein. The N-β-acetyltryptamine molecule showed a binding affinity value of –8.100 ± 0.200 kcal mol-1, which classifies the compound as a potential insecticidal agent against the Aedes aegypti vector. silico Initially 18 spp spp. 50 TD50 TD (TD50 predictions deviation fluctuation protein Nβacetyltryptamine N β acetyltryptamine 8100 8 100 –8.10 0200 0 200 0.20 mol1, mol1 mol 1, 1 mol-1 vector 5 TD5 (TD5 810 10 –8.1 020 20 0.2 mol- (TD 81 –8. 02 2 0. –8 –

The history of the discovery, use, and development of dyes is closely linked to the history of humanity itself. Among the first records of human civilization are cave paintings made from, e.g., fruits, plants, minerals, and insects. Over the centuries, using different techniques, colors have been given to all types of materials and products, from clothing to food. The chemicals responsible for colors are dyes - a vast collection of molecules of the most varied compositions, but which have in common the absorption of light within the visible window of the electromagnetic spectrum. This article aims not only to review the properties of some classes of natural dyes, their origins, and their applications but also to describe the various computational chemistry methods involved in designing new bio-inspired molecules. discovery use itself eg e g e.g. fruits plants minerals insects centuries techniques products food compositions spectrum origins bioinspired bio inspired e.g

RESUMO A produção de grãos apresenta crescimento constante, entretanto, a capacidade estatística de armazenamento permanece deficitária no Brasil. A falta de estruturas e a precariedade e inadequação no armazenamento ocasionam perdas na pós-colheita, devido ação de fatores que interagem com os grãos, culminando na sua deterioração. Para reversão desses efeitos, o tratamento químico é realizado, contudo, busca-se por sua substituição por substâncias naturais devido a implicações ambientais e medicinais. Objetivou-se com esta revisão, a discussão de uma potencial estratégia sustentável para o tratamento de grãos armazenados, com foco no uso de compostos naturais com propriedades bioativas como antifúngica, antioxidante e inseticida, que os torna potenciais para serem estudados. Foram delineados compostos naturais que possuem propriedades úteis para aplicação no armazenamento de grãos. Pesquisas a respeito do emprego dos compostos naturais no tratamento de grãos são incipientes, carecendo de avanços na identificação de novos compostos promissores, melhor compreensão dos mecanismos de ação e otimização/desenvolvimento de processos de extração, aplicação e formulação eficazes que viabilizem o futuro uso das substâncias. constante entretanto Brasil póscolheita, póscolheita pós colheita, colheita pós-colheita deterioração efeitos realizado contudo buscase busca se medicinais Objetivouse Objetivou revisão armazenados antifúngica inseticida estudados incipientes promissores otimizaçãodesenvolvimento otimização desenvolvimento extração

ABSTRACT Grain production is steadily increasing; however, the static storage capacity remains inadequate in Brazil. The lack of proper facilities and the precarious and inadequate storage conditions lead to post-harvest losses due to factors interacting with the grains, causing their deterioration. Chemical treatments are commonly used to reverse these effects; however, their replacement with natural substances has been sought due to environmental and human health concerns. The objective of this review was to discuss a sustainable strategy for treating stored grains, focusing on the use of natural compounds with bioactive properties, such as antifungal, antioxidant, and insecticidal activities, with potential for further studies. Natural compounds with useful properties for application in grain storage were outlined. Research on the use of natural compounds in grain treatment is still in its early stages, requiring progress in identifying new promising compounds, understanding the mechanisms of action, and developing and optimizing effective extraction, application, and formulation processes to make the use of these substances viable. increasing however Brazil postharvest post harvest grains deterioration effects concerns antifungal antioxidant activities studies outlined stages action extraction viable

RESUMO: O tomate (Solanum lycopersicum L.) é uma fruta rica em nutrientes e com alto teor de ácido glutâmico, tornando-o uma fonte adequada para a produção de ácido γ-aminobutírico (GABA) através da ação de bactérias ácido lácticas (BAL). As BAL desempenham um papel fundamental na fermentação láctica, melhorando o sabor e o valor nutricional dos produtos alimentares, contribuindo frequentemente para os seus benefícios para a saúde. Este estudo teve como objetivo isolar BAL produtoras de GABA de tomates e avaliar seu potencial para a produção de suco de tomate fermentado enriquecido com GABA. Os resultados indicam o isolamento de 15 cepas de BAL a partir de amostras de cinco tomates diferentes. Todas essas cepas demonstraram capacidade de produzir GABA, com níveis variando de 1,732 a 3,113 mg/mL, conforme determinado por cromatografia em camada delgada (CCD). Através de sequenciamento, a cepa promissora TO42, identificada como Weissella cibaria, foi selecionada para fermentação de suco de tomate. Além disso, o suco de tomate enriquecido com GABA foi fermentado com sucesso a 15 °Brix por 72 h, resultando no maior teor registrado de GABA e ácido láctico de 9.185 ± 0.398 mg/mL e 13.05 ± 1.56 g/L, respectivamente. RESUMO Solanum L. L glutâmico tornandoo tornando γaminobutírico γ aminobutírico (GABA BAL. . (BAL) láctica alimentares saúde 1 diferentes 1732 732 1,73 3113 3 113 3,11 mgmL mg mL CCD. CCD (CCD) sequenciamento TO42 TO cibaria disso Brix 7 h 9185 9 185 9.18 0398 0 398 0.39 1305 13 05 13.0 156 56 1.5 gL g g/L respectivamente (BAL 173 73 1,7 311 11 3,1 (CCD TO4 918 18 9.1 039 39 0.3 130 13. 5 1. 17 1, 31 3, 91 9. 03 0.

ABSTRACT: Tomatoes (Solanum lycopersicum L.) are nutrient-rich fruits with a high glutamic acid content, making them a suitable source for producing γ-aminobutyric acid (GABA) through the action of lactic acid bacteria (LAB). LAB plays a pivotal role in lactic fermentation, enhancing the taste and nutritional value of food products, often contributing to their health benefits. This study isolated GABA-producing LAB from tomatoes and assessed their potential for producing GABA-enriched fermented tomato juice. The results indicated the isolation of 15 LAB strains from the samples of five different tomatoes. All of these strains demonstrated the capability to produce GABA, with levels ranging from 1.732 to 3.113 mg/mL, as determined using thin-layer chromatography (TLC). Through sequencing, the promising strain TO42, identified as Weissella cibaria, was selected for tomato juice fermentation. Furthermore, GABA-enriched tomato juice was successfully fermented at 15 °Brix for 72 h, resulting in the highest recorded GABA and lactic acid content of 9.185 ± 0.398 mg/mL and 13.05 ± 1.56 g/L, respectively. ABSTRACT Solanum L. L nutrientrich nutrient rich γaminobutyric γ aminobutyric (GABA LAB. . (LAB) fermentation products benefits GABAproducing GABAenriched enriched 1 1732 732 1.73 3113 3 113 3.11 mgmL mg mL thinlayer thin layer TLC. TLC (TLC) sequencing TO42 TO cibaria Furthermore Brix 7 h 9185 9 185 9.18 0398 0 398 0.39 1305 13 05 13.0 156 56 1.5 gL g g/L respectively (LAB 173 73 1.7 311 11 3.1 (TLC TO4 918 18 9.1 039 39 0.3 130 13. 5 1. 17 31 3. 91 9. 03 0.

In silico and in vitro tests can reveal promising anti-leishmania activity for natural products and their derivatives. The aim of this study was to investigate in silico the pharmacological activities of potential new chalcones and their leishmanicidal potential in vitro. The in silico study was carried out using the PASS, MolPredictX and Molegro Virtual Docker 6.0 programs. Antiparasitic activity was assessed in axenic promastigote and amastigote forms of Leishmania braziliensis. The cytotoxicity tests used the J77G8 cell line. The chalcones exhibited 50% cytotoxic concentration values (CC50) values > 50 μM. Chalcone 4 (named FERAI) presented the best activity with concentration for 50% of promastigotes and intracellular parasites forms (EC50) of 9.75 ± 1.7 and 10.13 ± 1.7 μM for promastigote and amastigote, respectively. Reactive oxygen species (ROS) testing presented increased ROS levels in the parasite at the FERAI concentrations of 10 μM (56.33%), 20 μM (61.76%) and 30 μM (67.13%). Molecular docking revealed interactions (binding energy) between FERAI and the enzymes UDP-glycosyl pyrophosphorylase (-56.8384), dihydroorotate-dehydrogenase (-132.276) and trypanothione-reductase (-151.281). Our results demonstrated the anti-leishmanial activity of chalcones, especially FERAI, with a noted raising of ROS levels in the parasite. Molecular docking revealed dihydroorotate dehydrogenase and trypanothione reductase as potential pharmacological targets for FERAI. antileishmania anti leishmania derivatives PASS 60 6 0 6. programs braziliensis JG J G J77G line CC50 CC (CC50 5 named EC50 EC (EC50 975 9 75 9.7 17 1 7 1. 1013 13 10.1 respectively (ROS 56.33%, 5633 56.33% , 56 33 (56.33%) 2 61.76% 6176 61 76 (61.76% 3 67.13%. 6713 67.13% . 67 (67.13%) binding energy UDPglycosyl UDP glycosyl 56.8384, 568384 56.8384 8384 (-56.8384) dihydroorotatedehydrogenase 132.276 132276 132 276 (-132.276 trypanothionereductase 151.281. 151281 151.281 151 281 (-151.281) antileishmanial leishmanial CC5 (CC5 EC5 (EC5 97 9. 101 10. 563 56.33 (56.33% 61.76 617 (61.76 671 67.13 (67.13% 56838 56.838 838 (-56.8384 132.27 13227 27 (-132.27 15128 151.28 15 28 (-151.281 (CC (EC 56.3 (56.33 61.7 (61.7 67.1 (67.13 5683 56.83 83 (-56.838 132.2 1322 (-132.2 1512 151.2 (-151.28 56. (56.3 61. (61. 67. (67.1 568 56.8 8 (-56.83 132. (-132. 151. (-151.2 (56. (61 (67. (-56.8 (-132 (-151. (56 (6 (67 (-56. (-13 (-151 (5 ( (-56 (-1 (-15 (-5 (-

Cupuaçu (Theobroma grandiflorum Schum.) is an Amazonian fruit rich in antioxidants potential due to its phenolic compounds. Its seeds produce cupulate, a chocolate-like product, and the residue remains rich in biocompounds. This study aimed to optimize and compare microwave-assisted (MAE) and high pressure/temperature extraction (HPTE) of polyphenolic and flavonoid compounds from cupuaçu seed by-products. A Box-Behnken 33 factorial design assessed the influence of extraction time, solid/liquid ratio, and ethanol concentration. Responses included total polyphenol content, total flavonoid content, and anti-radical power via the ABTS (2,2-azino-bis-3-ethylbenzothiazoline-6-sulphonic acid) method. In optimum conditions, MAE had the highest total polyphenol content and HPTE for flavonoids. Optimal conditions for both methods were 65% (m/v) ethanol concentration, 45 min extraction time, and 0.03 g mL−1 solid/liquid ratio. MAE and HPTE achieved greater recovery of (−)-epicatechin and (−)-epigallocatechin-3-gallate compared to percolation. Both techniques proved viable for recovering polyphenols from cupuaçu seed by-products, in less time and with less solvent. Thus, cupuaçu by-products can be a sustainable and functional food source, with MAE and HPTE providing high yields and quality extracts rich in polyphenols. Theobroma Schum. Schum cupulate chocolatelike chocolate like product biocompounds microwaveassisted microwave assisted (MAE pressuretemperature pressure temperature (HPTE byproducts. byproducts by products. products BoxBehnken Box Behnken 3 solidliquid solid liquid ratio concentration antiradical anti radical 2,2azinobis3ethylbenzothiazoline6sulphonic 22azinobis3ethylbenzothiazoline6sulphonic azinobisethylbenzothiazolinesulphonic 2,2 azino bis ethylbenzothiazoline 6 sulphonic 2 acid method flavonoids 65 m/v mv m v (m/v 4 003 0 03 0.0 mL1 mL 1 mL− −epicatechin epicatechin − −epigallocatechin3gallate epigallocatechin3gallate epigallocatechingallate epigallocatechin gallate percolation byproducts, products, solvent Thus source 2azinobis3ethylbenzothiazoline6sulphonic azinobis 22 2, 00 0.

Lantana caatingensis Moldenke (Verbenaceae) is an endemic plant from northeastern Brazil. However, its chemical composition is almost unknown. This study aimed to characterize the chemical compounds found in L. caatingensis and investigate the antileishmanial potential of its hydroalcoholic extract and polar fractions. Compounds present in the hydroalcoholic extract obtained from L. caatingensis leaves and its polar fractions (ethyl acetate and methanolic) were analyzed by liquid chromatography with a photodiode-array detector coupled to electrospray ionization quadrupole time-of-flight mass spectrometry. An antileishmanial assay was performed in a 96-well plate against Leishmania major promastigotes using resazurin on a plate spectrophotometer and the results were expressed as percentage of growth inhibition. Nine compounds were determined in the investigated extract and fractions, classified as flavonoids, flavonoid C-glycosides and phenylethanoid glycosides. The antileishmanial activity revealed that the hydroalcoholic extract and the ethyl acetate fraction were active against L. major promastigotes with inhibitory concentration of 71.78 and 26.86 µg mL-1, respectively, while the methanolic fraction was inactive (478.40 µg mL-1). This is the first report on the chemical composition and antileishmanial activity of L. caatingensis extracts. These results contribute to further knowledge of species belonging to the Lantana genus. Verbenaceae (Verbenaceae Brazil However unknown L photodiodearray photodiode array timeofflight time flight spectrometry 96well well 96 inhibition flavonoids Cglycosides C glycosides 7178 71 78 71.7 2686 26 86 26.8 mL1, mL1 mL 1, 1 mL-1 respectively 478.40 47840 478 40 (478.4 mL1. . mL-1) extracts genus 9 717 7 71. 268 2 8 26. mL- 478.4 4784 47 4 (478. 478. (478 (47 (4 (

ABSTRACT The aim of this study was to characterise the lignocellulosic fractions of pruning waste from tree species showing potential for furniture production in Acaraú, Ceará. The experiment was conducted in a completely randomised, split-plot design, with the plots corresponding to two water regimes (irrigated for one year and irrigated for three years) and the sub-plots to eight tree species, with three replications. The chemical attributes were determined after seven years. Except for the insoluble lignin content, there was a significant effect from the different species in terms of the chemical properties of the wood. The results for the lignocellulosic fractions show the possibility of developing technological ways of adding value to these waste products, especially considering their lignin content. The different species also showed potential for use in producing cellulose pulp, with the exception of Handroanthus impetiginosus due to its high ash content. The results of this study offer new perspectives for future research into the use of forestry waste. Acaraú Ceará randomised splitplot split plot design years subplots sub replications content wood products pulp

RESUMO Este artigo propõe um modelo conceitual para avaliar como a motivação materialista dos consumidores impacta as características sociais (prestígio e conspicuidade) que geram Status para produtos tecnológicos inovadores, que podem levar à intenção de consumo. O estudo utilizou uma abordagem quantitativa para testar um modelo conceitual utilizando a modelagem de equações estruturais com o uso do PLS - SEM. Os resultados indicam que o prestígio do produto e a percepção de conspicuidade do produto medeiam a motivação materialista dos consumidores, o que afeta o status social proporcionado pelo produto ao indivíduo. Da mesma forma, a percepção de inovação e o status do produto medeiam a relação entre conspicuidade e prestígio percebido em relação à intenção de consumo. Esta pesquisa fornece insights importantes sobre as fortes relações entre as características sociais do produto tecnológico que levam em conta os valores dos indivíduos. Como consequência, este estudo contribui diretamente na compreensão de status e valores sociais influenciando a intenção de consumo de produtos tecnológicos, demonstrando o quanto a inovação traz elementos de valoração do indivíduo que a possui. inovadores SEM forma indivíduos consequência possui

ABSTRACT This article proposes a conceptual model to assess how consumers' materialistic motivations impact social characteristics (prestige and conspicuity) that generate status for innovative technological products, which can lead to consumption intention. The study used a quantitative approach to test a conceptual model using structural equation modeling through PLS - SEM. The results indicate that product prestige and perception of product conspicuity mediate consumers’ materialistic motivations, which affects the social status provided to the individual by the product. Likewise, perception of innovation and product status mediate the relationship between conspicuity and perceived prestige in relation to consumption intention. This research yields important insights regarding the strong relations between the social characteristics of technological products that take into account individuals’ values. Consequently, this study enhances understanding of how status and social value influence the intention to consume technological products, demonstrating the extent to which innovation brings elements of value to individuals who own the product in question. consumers SEM Likewise values Consequently question

RESUMO: O melão de polpa alaranjada honeydew apresenta elevado potencial nutricional e econômico, sendo amplamente apreciado como fruta doce e refrescante. Portanto, avaliar amostras comerciais de produtos tão relevantes para o mercado de frutas frescas é de grande importância. O objetivo deste estudo foi investigar a capacidade antioxidante, os parâmetros de qualidade e a composição química de melões do mercado brasileiro. Os valores de pH e ºBrix determinados para as amostras de melão foram 6,5 ± 0,30 e 9,2 ± 0,80 g/100 g (peso fresco), respectivamente, o que está de acordo com os resultados esperados para melões de alta qualidade. A análise cromatográfica revelou a sacarose (49% do açúcar total) como principal açúcar, seguida pela frutose (30%) e glicose (21%). Os carotenóides, que estão diretamente ligados à cor laranja característica, apresentaram teor total de 270,59 µg/g (peso seco). Além disso, o maior valor de b* comparado ao valor de a* indica a maior contribuição da cor amarela. Quanto ao potencial antioxidante, além de apresentar capacidade antioxidante para ambos os métodos aplicados, DPPH e FRAP, níveis variando de 16,40 ± 0,21 µmol equivalente de ácido ascórbico/g a 56,98 ± 0,80 µmol equivalente de Trolox/g (peso seco) foram encontrados nos extratos de melão. Ademais, os resultados foram maiores em termos de FRAP do que em DPPH. Desta forma, os resultados destacam os melões avaliados como fontes valiosas de compostos bioativos, como carotenóides e fenólicos, que contribuem para suas propriedades antioxidantes. Além disso, análises de cor, pH e teor de sólidos solúveis totais também refletem os atributos de qualidade. RESUMO econômico refrescante Portanto importância brasileiro 65 6 5 6, 030 0 30 0,3 92 9 2 9, 080 80 0,8 g100 100 g/10 peso fresco, fresco , fresco) respectivamente 49% 49 (49 30% (30% 21%. 21 21% . (21%) característica 27059 270 59 270,5 µgg µg seco. seco disso b amarela aplicados 1640 16 40 16,4 021 0,2 ascórbicog ascórbico 5698 56 98 56,9 Troloxg Trolox Ademais forma bioativos fenólicos antioxidantes 03 3 0, 08 8 g10 10 g/1 4 (4 (30 (21% 2705 27 270, 164 1 16, 02 569 56, g1 g/ ( (3 (21 (2

ABSTRACT: Orange-fleshed non-netted honeydew melon has high nutritional and economic potential, being widely appreciated as a refreshing sweet fruit. Therefore, evaluating commercial samples of such relevant products for the fresh fruit market is of great importance. This study investigated the antioxidant capacity, quality parameters, and chemical composition of honeydew melons from the Brazilian market. The values of pH and °Brix determined for melon samples were 6.5 ± 0.30 and 9.2 ± 0.80 g/100 g (fresh weight), respectively, which agree with the results expected for high-quality melons. The chromatography analysis revealed sucrose (49% of total sugar) as the main sugar, followed by fructose (30%) and glucose (21%). Carotenoids, which are directly linked to the characteristic orange color, showed a total level of 270.59 µg/g (dry weight). Additionally, the higher b* value compared to a* value indicates the highest yellow contribution. Regarding the antioxidant assays, in addition to presenting antioxidant capacity for both methods applied, DPPH and FRAP, levels ranging from 16.40 ± 0.21 µmol ascorbic acid equivalent/g to 56.98 ± 0.80 µmol Trolox equivalent/g (dry weight) were reported in melon extracts. Moreover, the results were higher in terms of FRAP than DPPH. Therefore, the results underscore the evaluated honeydew melons as valuable sources of bioactive compounds, such as carotenoids and phenolics, which contribute to their antioxidant properties. Besides, analyses of color, pH, and total soluble solids content also reflect the quality attributes. ABSTRACT Orangefleshed Orange fleshed nonnetted non netted potential Therefore importance parameters Brix 65 6 5 6. 030 0 30 0.3 92 9 2 9. 080 80 0.8 g100 100 g/10 weight, weight , respectively highquality 49% 49 (49 sugar 30% (30% 21%. 21 21% . (21%) Carotenoids color 27059 270 59 270.5 µgg µg dry weight. Additionally b contribution assays applied 1640 16 40 16.4 021 0.2 equivalentg equivalent 5698 56 98 56.9 extracts Moreover compounds phenolics properties Besides attributes 03 3 0. 08 8 g10 10 g/1 4 (4 (30 (21% 2705 27 270. 164 1 16. 02 569 56. g1 g/ ( (3 (21 (2