Plant Extracts
Mostrando 1-12 de 1085 artigos, teses e dissertações.
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1. A Rational Procedure to Increase Selectivity in the Determination of an Elicitor as Salicylic Acid in Polygala Extracts Using Capillary Electrophoresis
Considering the economic potential of secondary metabolites, researches have been focusing several strategies in order to explore and enhance the accumulation of these metabolites in plant matrices in a broad context. One of those strategies is the development of suitable methodologies for the determination of some elicitors, such as salicylic acid (SA). Sin
Journal of the Brazilian Chemical Society. Publicado em: 2022
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2. Extracts of the Native Brazilian Tree Garcinia gardneriana Inhibit Urediniospore Germination of Coffee Leaf Rust Fungus
The fungal Hemileia vastatrix is the causal agent of coffee leaf rust, one of the worst and devastating disease in coffee cultures worldwide. As a result of our research on natural products for the development of novel agrochemicals, we found that the hexane extract from leaves of the Brazilian medicinal plant Garcinia gardneriana, at 500 μg mL-1, inhibited
Journal of the Brazilian Chemical Society. Publicado em: 2022
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3. ASSESSMENT OF α-AMYLASE INHIBITION ACTIVITY BY AN OPTIMIZED AND VALIDATED IN VITRO MICROSCALE METHOD
Metabolic disorders, including hyperglycemia, characterize type-2 diabetes. One of the treatment methods used for postprandial hyperglycemia includes using potential therapeutic agents to inhibit α-amylase activity. This study utilized fractional design and the simplex method to optimize in vitro microscale assay inhibition conditions using Miller’s react
Química Nova. Publicado em: 2022
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4. Bioactivity of plant extracts from caatinga on cowpea weevil, Callosobruchus maculatus (Coleoptera: Chrysomelidae: Bruchinae)
RESUMO O feijão-caupi (Vigna unguiculata) é uma cultura econômica e nutricionalmente importante. No entanto, o feijão-caupi está sujeito ao ataque de insetos-praga que reduzem a qualidade e o valor nutricional dos grãos durante o armazenamento. O uso de produtos à base de plantas como alternativa de controle de insetos-praga tem-se destacado por sua b
Revista Brasileira de Engenharia Agrícola e Ambiental. Publicado em: 2022
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5. Antimicrobial potential of plant extracts from the Brazilian Cerrado
Resumo Bactérias estão relacionadas a diferentes doenças bucais, como a cárie dentária e a doença periodontal. Assim, o controle e/ou erradicação de microrganismos e seus subprodutos é primordial para o sucesso dos tratamentos. Uma alternativa para diminuir a carga bacteriana é a utilização de extratos vegetais utilizados na medicina popular. A c
Brazilian Dental Journal. Publicado em: 2022
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6. Leucoagaricus gongylophorus provides protection for Atta sexdens against plant extracts
RESUMO Extratos vegetais foram utilizados para o controle das formigas cortadeiras. Os objetivos deste estudo foram avaliar a sobrevivência de operárias de formigas cortadeiras após aplicação tópica de extratos de Ageratum conyzoides (mentrasto) e Manihot esculenta (mandioca); e avaliar o efeito por ingestão do extrato de Manihot esculenta extraído c
Ciência Florestal. Publicado em: 2022
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7. Development of technology for bakery products
Abstract The purpose of this study is to create an assortment of whole grain wheat bread that is resistant to microorganisms and has high nutritional value. The research was carried out on the microbiological purity of whole wheat flour, the inhibitory effect of plant extracts on thermophilic bacteria detected in flour and the amount of biologically active a
Food Sci. Technol. Publicado em: 2021-09
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8. OTIMIZAÇÃO E VALIDAÇÃO DE MÉTODO ENZIMÁTICO SEMIQUANTITATIVO SIMPLES E DE BAIXO CUSTO PARA A BUSCA DE INIBIDORES DE CISTEINO PROTEASES
Cysteine proteases are an important class of enzymes involved in several essential biological processes. For this reason, these enzymes are important therapeutic targets, and therefore can be used in enzymatic assays for the search of hits. The most widely used methods in the search of enzyme inhibitors are spectrophotometric, however they have relatively hi
Quím. Nova. Publicado em: 2021-04
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9. Evaluation of Antibacterial Activity, Chromatographic Analysis for Rutin and Quercetin Quantification Using HPLC-UV-Vis from the Hydro-Alcoholic Extract Obtained from Bidens pilosa Linné
Novel and miniaturized technique, a dynamic sonication-assisted solvent extraction before the analysis by high performance liquid chromatography-ultraviolet visible (HPLC-UV-Vis) for isolation, identification and quantification of rutin and quercetin metabolites in alcoholic extracts from Bidens pilosa Linné, was developed. The results showed that the flowe
J. Braz. Chem. Soc.. Publicado em: 2021-03
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10. In vitro and in vivo control of yam dry rot nematodes using pyroligneous extracts from palm trees
ABSTRACT Dry rot of yam (Dioscorea spp.) caused by Scutellonema bradys and Pratylenchus spp. has restricted yam production in Brazil. Plant-based products can be useful reducing nematode damages. The objectives of this study were to evaluate the nematostatic and nematicidal in vitro activities of pyroligneous extracts from Cocos nucifera, Syagrus cearensis,
Rev. Ceres. Publicado em: 2020-12
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11. Functional properties and Bioactivities of Cleistocalyx nervosum var. paniala berry plant: a review
Abstract In treating various diseases, natural therapies are widely preferred in the modern era to synthetic drugs as they offer little or no side effects, in contrast to synthetic drugs. However, there is limited scientific knowledge about plants that have a broad range of medicinal properties. Cleistocalyx nervosum var. paniala, native to Thailand and gene
Food Sci. Technol. Publicado em: 2020-12
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12. Chemical Prospection of Qualea grandiflora Mart. Fruit and Stem Extracts and Their in vitro and in vivo Antiplasmodial Activity
Qualea grandiflora Mart. (“pau-terra”) is a medicinal plant symbolic from Cerrado biome. Qualea species reportedly have antiparasitic properties, but their active compounds have yet to be identified. In this study, we investigated the antiplasmodial activity of Q. grandiflora fruit and stem extracts against Plasmodium falciparum. The polar extracts of bo
J. Braz. Chem. Soc.. Publicado em: 2020-07