The polyphenolic content of fruit and vegetables and their antioxidant activities. What does a serving constitute?
The polyphenolic content of fruit and vegetables and their antioxidant activities. What does a serving constitute?
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DOI：
10.1080/10715769900300161
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发表时间：
1999-01-01
影响因子：
3.3
通讯作者：
Rice-Evans, CA
中科院分区：
文献类型：
--
作者：
Paganga, G;Miller, N;Rice-Evans, CA
对洋葱、番茄、茄子和苹果的主要黄酮、黄酮醇、花青素和羟基肉桂酸成分及其苷进行了分析，并测定了酚类提取物的抗氧化活性。茄子的主要酚类抗氧化成分是果肉中的绿原酸和皮中的翠雀素结合物。就苹果而言，检测到的主要酚类抗氧化剂是绿原酸、原花青素/儿茶素化合物、芦丁和根皮苷。众所周知，槲皮素糖苷是洋葱的主要酚类成分。对一份 100 克新鲜水果、蔬菜的抗氧化活性进行评估，并与之前报道的 150 毫升饮料（啤酒为 500 毫升）的结果进行比较，以 μmol Trolox 当量表示，表明 1 杯（150 毫升）红葡萄酒 = 12 杯白葡萄酒 = 2 杯茶 = 4 个苹果 = 5 份洋葱 = 5.5 份茄子 = 3.5 杯黑醋栗的抗氧化活性果汁=3.5（500毫升）杯啤酒=7杯橙汁=20杯苹果汁（长寿）。
Analysis of the major flavone, flavonol, anthocyanidin and hydroxycinnamic acid constituents land their glycosides) of onion, tomato, egg plant and apple has been undertaken and the antioxidant activities of the phenolic extracts determined. The major phenolic antioxidant components of egg plant are chlorogenic acid in the flesh and a delphinidin conjugate in the skin. In the case of apple, the major phenolic antioxidants detected are chlorogenic acid, procyanidins/catechin compounds, rutin and phloridzin. Quercetin glycosides are well-known to be the major phenolic components of onion. Assessment of the antioxidant activities of a serving of 100 g fresh weight fruit, vegetable and comparison with previously reported findings for 150 ml beverage (500 ml portion in the case of beer), expressed in mu mol Trolox equivalents show that the antioxidant activities of 1 glass (150 ml) red wine = 12 glasses white wine = 2 cups of tea = 4 apples = 5 portions of onion = 5.5 portions egg plant = 3.5 glasses of blackcurrant juice = 3.5 (500 ml) glasses of beer = 7 glasses of orange juice = 20 glasses of apple juice (long life).