Results 171 to 180 of about 15,050 (206)

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, Zhong Jian, Chen, Xue Song, Bai, Can, Ding, Ting Ju, Long, Fu Gang, Wei, Kang Ru, Miao   +6 more
openaire   +2 more sources

Estrogenic Activity of Naturally Occurring Anthocyanidins

Nutrition and Cancer, 2001
Anthocyanins, which are natural plant pigments from the flavonoid family, represent substantial constituents of the human diet. Because some other bioflavonoids are known to have estrogenic activity, the aim of this study was to determine the estrogenic activity of the anthocyanine aglycones.
E, Schmitt, H, Stopper
openaire   +2 more sources

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, Gabriele, Korte, Peter, Schreier, Anett, Oehme, Sanja, Locher, Goeran, Hajak, Philipp G, Sand   +6 more
openaire   +2 more sources

Anthocyanidin variation in Clarkia

Biochemical Systematics and Ecology, 1986
Abstract Previous reports of anthocyanin variation in Clarkia indicated intersectional differentiation, suggesting an additional marker for evaluating infrageneric relationships. Therefore, an investigation of anthocyanidin content of 19 species representing seven of the 10 sections was conducted.
openaire   +1 more source

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, Michalina Grzesik-Pietrasiewicz, Izabela Sadowska-Bartosz   +2 more
openaire   +2 more sources

Inhibitory actions of bilberry anthocyanidins on angiogenesis

Phytotherapy Research, 2010
AbstractThe aim of this study was to examine the antiangiogenic properties and antioxidant activities (a) of the main anthocyanidins (delphinidin, cyanidin and malvidin) found as constituents in Vaccinium myrtillus (bilberry) anthocyanosides (VMA) and (b) of N‐acetyl‐l‐cysteine (NAC).
Nozomu, Matsunaga, Kazuhiro, Tsuruma, Masamitsu, Shimazawa, Shigeru, Yokota, Hideaki, Hara   +4 more
openaire   +2 more sources

Total synthesis of anthocyanidinsviaHeck reaction

Natural Product Research, 2006
Anthocyanidin moiety was obtained by cyclization of a 2-hydroxychalcone prepared by the Heck approach to the synthesis of flavonoids. 1-(3,4-dimethoxyphenyl)-prop-2-en-1-one has been used as a coupling partner along with o-acetoxyiodobenzene in the Heck reaction.
BIANCO, Armandodoriano, Claudia Cavarischia, GUISO, Marcella   +2 more
openaire   +3 more sources

Dietary Anthocyanidins and Bone Health

2013
There is evidence to suggest that fruit and vegetable consumption is beneficial for bone health. Anthocyanins are bioactive flavonoid compounds found mostly in fruits, particularly berries, some vegetables, and wine. A diet rich in anthocyanidins is thought to have multiple health benefits, and recent studies have shown that high intakes of ...
Claire J. Macdonald-Clarke, Helen M. Macdonald   +1 more
openaire   +1 more source

Leuko‐ und Pseudoverbindungen der Anthocyanidine

Justus Liebigs Annalen der Chemie, 1958
AbstractDie Hydrierung des Taxifolins (X) zum Leuko‐cyanidin‐hydrat (VIII) gelingt über den Tetrabenzyläther. Weitere Hydrierung führt zum Catechin. Das Acetat von VIII ist strukturverschieden vom Hydrierungsprodukt XIV des schon früher aus Cyanidin gewonnenen Hexaacetyl‐pseudo‐cyanidins (XIII). Die Formeln XIII und XIV sind damit bewiesen. XIV und XVI
Karl Freudenberg, Klaus Weinges
openaire   +1 more source

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