Structural characterization and bioactivity of proanthocyanidins from indigenous cinnamon (Cinnamomum osmophloeum)

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• 作者：Gong-Min Lin ; Huan-You Lin ; Chia-Yun Hsu and Shang-Tzen Chang
• 刊名：Journal of the Science of Food and Agriculture
• 出版年：2016
• 出版时间：November 2016
• 年：2016
• 卷：96
• 期：14
• 页码：4749-4759
• 全文大小：526K
• ISSN：1097-0010

文摘

Barks and twigs of common species of cinnamon with abundant proanthocyanidins are used as a spice, fold medicine or supplement. Cinnamomum osmophloeum is an endemic species in Taiwan and coumarin was not detected in the oil of the C. osmophloeum twig. The present study aimed to evaluate the relationship between the bioactivities and proanthocyanidins of C. osmophloeum twig extracts (CoTE). The n-butanol soluble fraction from CoTE was divided into 10 subfractions (F1–F10) by Sephadex LH-20 gel chromatography. The antihyperglycemic activities were examined by α-glucosidase, α-amylase and protein tyrosine phosphatase 1B inhibitory assays. Total antioxidant activities were examined by 2,2-diphenyl-1-picrylhydrazyl free radical scavenging and ferrous ion-chelating assays.