نتایج جستجو برای: ciocalteu method
تعداد نتایج: 1630456 فیلتر نتایج به سال:
the aim of the study was to evaluate the antioxidant and free radical scavenging properties and to determine the phenolic content of the ethanol extract from five mentha species [m. longifolia (l.) huds., m. piperita l., m. pulegium l., m. rotundifolia (l.) huds., and m. spicata l.]. the antioxidant activities of the extracts were investigated with two different methods, 2,2’-diphenyl-1-picrylh...
this study was designed to examine the in vitro antioxidant activities and total phenolic contents of the methanolic extracts from male inflorescence of salix aegyptiaca l. grown in iran. the methanolic extract (me) and its three fractions including water (wf), butanol (bf) and chloroform (cf) were prepared and then their antioxidant activities, as well as total phenolic contents, were evaluate...
Moringa oleifera L. have good nutritional content including phenolic compounds which can be used as antioxidants and grow in lowlands highlands. The purpose of this study was to determine the total ethanol extract M. leaves with variations area collection. 50% obtained from simplicia by using maceration method. Analysis carried out a spectrophotometer instrument addition reagent Folin-Ciocalt...
The objective of the research was to evaluate antioxidant activity, phenols and volatile compounds different types coffee infusions. We worked with Catimor variety used five methods obtain infusion (espresso, V60, siphon, French press a traditional local method). For each infusion, capacity determined 2,2-Diphenyl-1-Picrylhydrazyl 2,2′-azinobis-3-ethylbenzothiazoline-6-sulfonic acid techniques,...
In this study, total phenolic contents and antioxidant activity were determined in various products made from two cultivars of jamman fruit (Eugenia jambolana) i.e. improved (V1) indigenous (V2). Five each cultivar such as jam, squash, ready-to-drink juice, pulp powder seed powder. Fruit endogenous to the typical region Sindh-Pakistan. Total analyzed by Folin-Ciocalteu colorimetric method, wher...
Olive leaves are rich in phenolic compounds, which give them antioxidant properties that associated with a lower incidence of disease. Therefore, the aim this work was to determine content, activity, and toxicity aqueous extracts olive main Spanish Greek cultivated wild genotypes. For these purposes, ‘Picual’ ‘Arbequina’ from Spain ‘Koronoeiki’ ‘Kalamon’ Greece were collected, as both countries...
abstract part one: the electrode oxidation potentials of a series of eighteen n-hydroxy compounds in aqueous solution were calculated based on a proper thermodynamic cycle. the dft method at the level of b3lyp-6-31g(d,p) was used to calculate the gas-phase free energy differences ,and the polarizable continuum model (pcm) was applied to describe the solvent and its interaction with n-hydroxy ...
The present study was conducted to analyze the chemical composition, total phenolics content and antioxidant capacity of two whole corn (Zea mays) based meals traditional from Mexico: "traditional pinole" and "seven grain pinole"; and compare it with information available from ready to eat cereal products based on refined corn and whole grain cereals. Proximate analyses (moisture, ash, fat, pro...
objective: boerhaavia elegans l. (nyctaginaceae) is a medicinal plant used for the treatment of kidney disorders, urinary tract disorders and blood purification in baluch tribe. the aim of present study is to evaluate the antioxidant propertyof b. elegans species for the first time. materials and methods: different parts (leaf, stem and fruit) of the plant were extracted by using various solven...
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