Ferric Reducing Antioxidant Power Frap
Mostrando 1-12 de 30 artigos, teses e dissertações.
-
1. Anti-Zika Virus Effects, Placenta Protection and Chemical Composition of Passiflora edulis Seeds Ethanolic Extract
Various beneficial biological activities have been reported for passion fruit (Passiflora edulis), grown in tropical and subtropical regions. However, no study has yet demonstrated its action against the Zika virus (ZIKV) infection. The present study aimed to investigate the anti-ZIKV of the ethanolic passion fruit seed extract (PFSE), from which, liquid chr
Journal of the Brazilian Chemical Society. Publicado em: 2022
-
2. Comparative assessment of antioxidant activity and biochemical composition of four seaweeds, Rocky Bay of Abu Qir in Alexandria, Egypt
Abstract The current study estimated the antioxidant activity and biochemical composition of four seaweeds; Toania atomaria (Phaeophyta), Padina pavonia (Phaeophyta), Jania rubens (Rhodophyta) and Corallina elongate (Rhodophyta). The highest total antioxidant activity was observed with ethanol extract of T. atomaria (44.6 ± 1.6 mg ascorbic acid equivalents/
Food Sci. Technol. Publicado em: 2021-06
-
3. A new polysaccharide isolated from Dendrobium offcinale, stimulates aquaporin-3 expression in human keratinocytes
Abstract Polysaccharides are the major components of the water extract from Dendrobium officinale, which have been thoroughly studied and found to have favorable moisturizing properties on mammalian skin. However, the structures of polysaccharides on skin moisturizing properties remains unknown. The aim of this study was to extract and characterize D. offici
Food Sci. Technol. Publicado em: 2021-03
-
4. Genetic variability in peppers accessions based on morphological, biochemical and molecular traits
ABSTRACT The evaluation of genetic diversity among the accessions of a germplasm collection results in information about promising materials suitable for breeding programs. Thus, the goal of this work was to characterize Capsicum baccatum accessions from different Brazilian regions, based on morphological, biochemical and molecular traits, aiming to support
Bragantia. Publicado em: 2020-12
-
5. NANO-ENCAPSULATION OF Lippia origanoides KUNTH. ESSENTIAL OIL BY CHITOSAN-CAFFEIC ACID NANOGEL
In this study, a nanogel was developed from a natural polymer, chitosan, to be used in the Lippia origanoides essential oil encapsulation. The encapsulation process was used in order to improve the functional capacity of this essential oil as an antioxidant. To obtain the nanogel, the chitosan was modified with caffeic acid using EDC coupling agent. The obta
Quím. Nova. Publicado em: 2020-01
-
6. Potential of some autochthonous wild plants of Burundi for vegetable oil and valuable compounds production
Resumo Doze espécies de plantas indígenas foram estudadas para valorizar alguns recursos naturais do Burundi (África Oriental), para investigar as possibilidades de produção de óleo vegetal. As propriedades físico-químicas e o conteúdo de óleo foram determinados com base em sementes colhidas em cinco zonas ecogeográficas. A partir de extratos de b
Braz. J. Biol.. Publicado em: 02/12/2019
-
7. Potential of Baccharis alnifolia Meyen & Walpan (Chilka) from northern Chile used as a medicinal infusion
RESUMO: Baccharis alnifolia Meyen & Walp. é uma erva altiplana nativa e medicinal, chilena que é usada como cataplasma e também consumida como uma infusão para aliviar a inflamação. Este estudo avaliou o efeito antioxidante e citotóxico do extrato etanólico de B. alnifolia e sua infusão. Verificou-se que o extrato etanólico contém 4,42 mg GAE / g
Cienc. Rural. Publicado em: 23/09/2019
-
8. Atividade biológica e quantificação de compostos bioativos em extrato de erva-mate e sua aplicação em hambúrguer de peixe
Resumo A erva-mate possui compostos biologicamente ativos com aplicação industrial. Cafeína, rutina e ácido clorogênico presentes neste produto possuem atividade antioxidante e o último ainda é antimicrobiano. Este estudo objetivou avaliar a atividade biológica do extrato de erva-mate e quantificar compostos bioativos, bem como aplicar o extrato em h
Braz. J. Food Technol.. Publicado em: 08/08/2019
-
9. A Procedure for Assessment of the Reducing Capacity of Plants-Derived Beverages Based on the Formation of the FeII/2,2’-Bipyridine Complex
An alternative spectrophotometric ferric reducing activity power (FRAP) method for quantification of total reducing capacity (TRC) was developed. The method is based on the reduction of FeIII to FeII by antioxidant compounds containing 2,2’-bipyridine (bipy) in aqueous solution. Absorbance values recorded at 521 nm, characteristic of the Fe(bipy)32+ comple
J. Braz. Chem. Soc.. Publicado em: 23/05/2019
-
10. Antioxidant and antibacterial activity and preliminary toxicity analysis of four varieties of avocado (Persea americana Mill.)
Resumo As atividades antioxidante e antibacteriana, e a toxicidade de produtos naturais podem mudar de acordo com a variedade vegetal, bem como a parte da planta que é analisada. Neste estudo, foram analisadas cascas, polpas e sementes de quatro variedades de abacate (Quintal, Fortuna, Margarida e Hass) no que tange às propriedades antioxidantes e antibac
Braz. J. Food Technol.. Publicado em: 01/04/2019
-
11. Effect of Harpin protein as an elicitor on the content of phenolic compounds and antioxidant capacity in two hydroponically grown lettuce (Lactuca sativa L.) varieties.
Abstract Harpin protein was used as an elicitor in green (butterhead) and red (oak leaf type) varieties of hydroponically grown lettuce (Lactuca sativa L.). Its impact on polyphenolic content and antioxidant capacity was evaluated. Harpin protein was sprayed three days before harvesting in concentrations of 45, 60, and 120 mg/L. Green lettuce samples showed
Food Sci. Technol. Publicado em: 13/12/2018
-
12. Synthesis of leading chalcones with high antiparasitic, against Hymenolepis nana, and antioxidant activities
The hymenolepiosis by Hymenolepis nana is a major public health problem in developing countries, and the commercial drugs against this parasitosis are not enough effective. The combination of antiparasitic and antioxidant agents has improved the treatment of some parasitoses. Thus, the development of new cestocidal and antioxidant agents to treat the hymenol
Braz. J. Pharm. Sci.. Publicado em: 29/11/2018