Results 171 to 180 of about 15,205 (223)

Research progress of proanthocyanidins and anthocyanidins

Phytotherapy Research, 2023
AbstractProanthocyanidins (PA) are polyphenol compounds that are widely distributed in the bark, fruit core, skin, or seeds of various plants. Anthocyanidins are water‐soluble natural pigments widely found in plants. They are all flavonoids, a major coloring substance in plants and fruits.
Yingyu Cui
exaly   +3 more sources

ChemInform Abstract: Are Anthocyanidins the Immediate Products of Anthocyanidin Synthase?

ChemInform, 2001
AbstractChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 100 leading journals. To access a ChemInform Abstract of an article which was published elsewhere, please select a “Full Text” option. The original article is trackable via the “References” option.
Jonathan J. Turnbull   +6 more
openaire   +1 more source

sPhospholipase A2 is inhibited by anthocyanidins

Journal of Neural Transmission, 2009
Epidemiological studies suggest that nutritional antioxidants may reduce the incidence of neurodegenerative disorders and age-related cognitive decline. Specifically, protection against oxidative stress and inflammation has served as a rationale for promoting diets rich in vegetables and fruits. The present study addresses secretory phospholipase A(2) (
Andrea, Dreiseitel   +6 more
openaire   +2 more sources

Antioxidant properties of anthocyanidins, anthocyanidin-3-glucosides and respective portisins

Food Chemistry, 2010
The study of the antioxidants properties of three classes of pigments, namely anthocyanidins (cyanidin-Cy, delphinidin-Dp and malvidin-Mv), anthocyanidin-3-glucosides (Cy-3-gluc, Dp-3-gluc and Mv-3-gluc), and portisins (Cy-pt, Dp-pt and Mv-pt) was carried out.
Joana Azevedo   +6 more
openaire   +2 more sources

Conversion of Leucoanthocyanins into the Corresponding Anthocyanidins

Science, 1964
Purified preparations of leucoanthocyanins from several sources were heated in butanol-hydrochloric acid solutions from 50° to 90°C and the rate of production of cyanidin was measured. From the temperature dependence of this rate, the calculated energy of activation was of the order of magnitude of 20,000 calories.
M A, JOSLYN, J L, GOLDSTEIN
openaire   +2 more sources

Fluorescent Products of Anthocyanidin and Anthocyanin Oxidation

Journal of Agricultural and Food Chemistry, 2020
We found that the oxidation of cyanidin with hydrogen peroxide, tert-butyl hydroperoxide, 2,2'-azobis(2-methylpropionamidine), 3-morpholinosydnonimine hydrochloride, sodium hypochlorite, Fe3+, and Fe2+ induced the appearance of a new fluorescence band, centered at 525-540 nm when excited at 470-490 nm.
Grzegorz Bartosz   +2 more
openaire   +2 more sources

Structure–activity relationships of anthocyanidin glycosylation

Molecular Diversity, 2014
This paper summarizes the main achievements about the structure-activity relationships of anthocyanidin glycosylation. Anthocyanidin glycosylation is the essential step of anthocyanin biosynthesis and also the prerequisite of the further modifications of anthocyanins, which is jointly characterized by the glycosylation site, the type and number of the ...
Chang Ling, Zhao   +6 more
openaire   +2 more sources

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