Analysis of Proanthocyanidins in Grape Seed Extracts, Health Foods and Grape Seed Oils
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چکیده
منابع مشابه
Analysis of Proanthocyanidins in Grape Seed Extracts, Health Foods and Grape Seed Oils
Grape seed extract (GSE) is one of Japan's natural food additives, and is recommended for use as an antioxidant. The component of interest is polyphenol, mainly proanthocyanidins, which are condensed tannins. A vanillin-hydrochloric acid (HCl) assay is specific for flavan-3-ol. The sensitivity of GSE components to the vanillin-HCl assay differed according to the chemical structure. We applied t...
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Angiogenesis plays a central role in wound healing. Among many known growth factors, vascular endothelial growth factor (VEGF) is believed to be the most prevalent, efficacious, and long-term signal that is known to stimulate angiogenesis in wounds. The wound site is rich in oxidants, such as hydrogen peroxide, mostly contributed by neutrophils and macrophages. We proposed that oxidants in the ...
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In one study, 287 patients diagnosed with asymptomatic carotid plaques or abnormal plaque free carotid intima-media thickness (CIMT) were randomly assigned to a GSE group (n = 146) or control group (n = 141). As anticipated, after treatment, GSE resulted in significant reduction in MMCIMT progression, while MMCIMT and plaque score were stable and even increased with the control group. The numbe...
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Glutamate excitotoxicity is one of the major events that takes place during various neurotoxic injuries such as brain ischemia. We prepared grape seed extracts, from two different varieties, containing high amounts of polyphenols but little resveratrol. Their neuroprotective effects were investigated using primary culture of neonatal mouse hippocampal neurons treated with an excitotoxic concent...
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This study was carried out to evaluate the effect of heating and physical conditions of grape seeds on the antioxidant activity of their extracts. Two forms of grape seeds, whole and powdered forms, were heated at four different temperatures 50, 100, 150 and 200 C. After heating, grape seeds were extracted with 70% ethanol (0.1 g grape seed/10 mL of 70% ethanol), and total phenol contents (TPC)...
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ژورنال
عنوان ژورنال: Journal of Health Science
سال: 2003
ISSN: 1344-9702,1347-5207
DOI: 10.1248/jhs.49.45