期刊
JOURNAL OF FOOD COMPOSITION AND ANALYSIS
卷 21, 期 4, 页码 273-281出版社
ACADEMIC PRESS INC ELSEVIER SCIENCE
DOI: 10.1016/j.jfca.2007.11.006
关键词
Arbutus unedo; strawberry tree; antioxidant; flavonoids; liquid chromatography; mass spectrometry; LC/MS
The fruits of the strawberry tree (Arbutus unedo L.) are consumed mainly as processed product, but may be a good source of antioxidants if consumed as fresh fruit. The aim of the present study was to identify and quantify the antioxidant components present in strawberry tree fruits, including flavonoids, vitamins C and E and carotenoids. The fruits are a very good source of antioxidants precisely because they have a high flavonoid content (32.37mg/100g edible portion) and, within this group of antioxidant compounds, proanthocyanidins are the most abundant, representing more than 80% of the total flavonoid contents. Anthocyanins are also present as glycosides of cyanidin and delphinidin, with cyanidin-3-galactoside the most abundant. Other antioxidants present in this fruit were ellagic acid and its diglucoside derivative. Vitamin C, vitamin E and carotenoids were also identified and quantified. (C) 2008 Elsevier Inc. All rights reserved.
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