Antioxidant activity of berry and fruit wines and liquors
Antioxidant activity of berry and fruit wines and liquors
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DOI：
10.1021/jf970489o
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发表时间：
1998-01-01
影响因子：
6.1
通讯作者：
Hopia, AI
中科院分区：
文献类型：
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作者：
Heinonen, IM;Lehtonen, PJ;Hopia, AI
共有44种不同的浆果和水果的葡萄酒和白酒的总酚含量在91和1820毫克/升之间，表示为没食子酸当量（GAE），进行了抗氧化活性的评价。将脱醇的葡萄酒提取物加入到亚油酸甲酯（梅洛）中，并在40 ℃下在黑暗中氧化，然后进行共轭二烯测量。由黑醋栗和越橘或越橘（240-275 μ M GAE）的混合物制成的葡萄酒略上级参考红葡萄酒（330-375 μ M GAE），并且在抑制梅洛氢过氧化物形成方面与对照抗氧化剂α-生育酚（50 μ M）具有相同的活性。此外，包括苹果、北极树莓、越橘、小红莓、红醋栗或罗望子在内的原料具有抗氧化活性。因此，这些原料含有酚类化合物，其中一些能够保护脂质在疏水脂质体系中也不被氧化。除北极树莓酒外，其他酒的活性都低于葡萄酒。然而，总酚含量没有相关的浆果和水果的葡萄酒和白酒的抗氧化活性，因此减轻了进一步表征浆果和水果的葡萄酒中存在的酚类抗氧化剂的重要性。
A total of 44 different berry and fruit wines and liquors with total phenolic contents between 91 and 1820 mg/L, expressed as gallic acid equivalents (GAE), were evaluated for antioxidant activity. Dealcoholized wine extracts were added to methyl linoleate (MeLo), and the oxidation in the dark at 40 degrees C was followed by conjugated diene measurement. Wines made of mixtures of black currants and crowberries or bilberries (240-275 mu M GAE) were slightly superior to reference red grape wines (330-375 mu M GAE) and equally as active as the control antioxidant, alpha-tocopherol (50 mu M), in inhibiting MeLo hydroperoxide formation. Also, raw materials including apple, arctic bramble, cowberries, cranberries, red currants, or rowanberries possessed antioxidant activity. Thus, these raw materials contain phenolic compounds, some of which are capable of protecting lipids against oxidation also in a hydrophobic lipid system. Liquors, apart from arctic bramble liquor, were less active than wines. However, the total phenolic content did not correlate with the antioxidant activity of the berry and fruit wines and liquors, therefore alleviating the importance of further characterization of the phenolic antioxidants present in berry and fruit wines.