Polyphenol profile and antioxidant activity of the fruit and leaf of Vaccinium glaucoalbum from the Tibetan Himalayas

•Polyphenols of V. glaucoalbum from Tibetan Himalayas were reported.•Twenty-four compounds were detected and identified from fruit and leaf.•The TAC of fruit was the highest among wild Vaccinium berries in China.•The leaf possessed higher TPC and antioxidant activity over fruit.•The fruit was of gre...

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Bibliographic Details
Published in:Food chemistry 2017-03, Vol.219, p.490-495
Main Authors: Feng, Cheng-Yong, Wang, Wei-Wei, Ye, Jian-Fei, Li, Shan-Shan, Wu, Qian, Yin, Dan-Dan, Li, Bing, Xu, Yan-Jun, Wang, Liang-Sheng
Format: Article
Language:English
Subjects:
Anthocyanins - metabolism
Antioxidant activity
Antioxidants - metabolism
China
Chromatography, High Pressure Liquid
Flavonols - metabolism
Fruit - metabolism
High altitude
Himalayas
HPLC
Mass Spectrometry
Plant Extracts - metabolism
Plant Leaves - metabolism
Polyphenol
Polyphenols - metabolism
Vaccinium - metabolism
Vaccinium glaucoalbum
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Summary:•Polyphenols of V. glaucoalbum from Tibetan Himalayas were reported.•Twenty-four compounds were detected and identified from fruit and leaf.•The TAC of fruit was the highest among wild Vaccinium berries in China.•The leaf possessed higher TPC and antioxidant activity over fruit.•The fruit was of great potential as a new source of functional food. Vaccinium glaucoalbum, a perennial evergreen shrub, is naturally distributed in high-altitude areas. In this study, the composition and content of polyphenolic compounds in the fruit and leaf of V. glaucoalbum were characterized. In total, 24 chemical compounds were detected and identified by HPLC-DAD and HPLC-ESI-MS2. Among all the compounds determined, 15 were anthocyanins and detected in fruit, 5 were flavonols and monitored in leaf, and 4 were chlorogenic acids and found in both fruit and leaf. The total anthocyanin content (TAC) of fruit (682mg/100gFW) was the highest among wild Vaccinium berries in China which have been investigated for now, and the total flavonol content of leaf was 2764mg/100gFW. The antioxidant activity of both fruit and leaf was assessed by DPPH and FRAP assays. Given its high TAC and strong antioxidant activity, the fruit of V. glaucoalbum has great potential in functional food.
ISSN:0308-8146
1873-7072
DOI:10.1016/j.foodchem.2016.09.083