hydroxycinnamatesanthocyaninsflavan-3-olsflavonolsThe antioxidant activity of phenolic compounds present in berries was investigated by two copper-catalyzed in ... IM Heinonen,AS Meyer,EN Frankel - 《J Agric Food Chem》 被引量: 672发表: 2010年 HPLCDADESIMS Analysis of Phenolic Compounds in Nectarine...
wine and lemonades. Dry products like coffee beans and dried tea leaves and powders were also included. The highest antioxidant values in this category were found among the unprocessed tea leaves, tea powders and coffee beans. In Table2we present an excerpt of this category and of the analyses...
Test for anthraquinones 200 mg of TLM was boiled with 6 ml of 1% HCl and filtered. The filtrate was shaken with 5 ml of benzene, filtered and 2 ml of 10% ammonia solution was added to the filtrate. The mixture was shaken and the presence of a pink, violet or red colour in the amm...
Ten South African plum cultivars and selections, including yellow- and red-fleshed plums from two harvest seasons were evaluated in terms of nutraceutical value (phenolic composition, total polyphenol content (TPC) and total antioxidant capacity (TAC)) and fruit attributes (colour, fruit mass, etc....
Given this context, the objective of the present work was to study the evolution of some antioxidant activities such those of peroxidases and superoxide dismutase, the content of phenolic compounds (flavonoids, phenylpropanoids), and other parameters in response to drought and cluster thinning as ...
the phenolic antioxidant capacity –analyzed with the DPPH method– of various plant food were as follows: fruits; 600-1700 μmol Trolox® equivalent (TE)/100 g, with a high 2200 TE for plums; berries averaged 3700 TE and vegetables averaged 450 TE with a high 1400 TE for red cabbage;...
The outcomes of the present work suggest that for the production of yacon chips with higher phytochemical content from white cultivar, it is better to carry the drying processing out one week after harvest by FD, while for the red cultivar it is better to process the tubers three weeks ...