Throughout the apple juice and cider making process, polyphenols undergo enzymatic oxidation which generates a great variety of polyphenol products. Since 5?-O-Caffeoylquinic acid (CQA) is one major phenolic compounds preferential substrate for polyphenoloxidase in juice, its leads to formation newly formed molecules by dehydrodimers (MW 706 Da) are included. Interactions salivary proteins (SP)...

Tree tomato fruits from the yellow giant, giant purple and New Zealand purple cultivars, cultivated in Ecuador were analysed for their phenolic composition and antioxidant capacity. Twelve hydroxycinnamoyl derivatives and four anthocyanins (in the purple cultivars) were detected and identified. The hydroxycinnamoyl derivatives mostly derived from caffeic acid, being 3-O-caffeoylquinic acid and ...

This study investigated whether decaffeinated green coffee bean extract prevents obesity and improves insulin resistance and elucidated its mechanism of action. Male C57BL/6N mice (N = 48) were divided into six dietary groups: chow diet, HFD, HFD-supplemented with 0.1%, 0.3%, and 0.9% decaffeinated green coffee bean extract, and 0.15% 5-caffeoylquinic acid. Based on the reduction in HFD-induced...

background and objectives: phlomis olivieri benth. (lamiaceae) is a medicinal plant widely distributed in iran. in the present study, we have investigated the phytochemical constituents, antioxidant activity and general toxicity potential of the aerial parts of this species. methods: silica gel (normal and reversed phases) and sephadex lh-20 column chromatographies were used for isolation of co...

The accurate quantification of phenolic compounds (PCs) in foods has become mandatory for a reliable estimation PCs dietary intake. However, the extraction step these molecules from food matrix is challenging and complex task. To manage current lack an official or generally accepted procedure recovery phenolics, application statistical mathematical tools, such as response surface methodology (R...

The objective of this study was to investigate the potential of various raw bean components as precursors of pyrogallol (1), hydroxyhydroquinone (2), catechol (3), 4-ethylcatechol (4), 4-methylcatechol (5), and 3-methylcatechol (6) under quasi "natural" roasting conditions by using the recently developed "in bean" model roast experiments. Freeze-dried, fully extracted bean shells were loaded wi...

Wild blueberries (Vaccinium angustifolium Aiton.) are a rich source of dietary fiber and (poly)phenols with gastrointestinal immune health-promoting properties, however, their mechanisms action on the intestinal epithelial cells transient tissue macrophages remain to be elucidated. In this study, we evaluated individual effects anthocyanins, short-chain fatty acids (metabolites derived from fib...