梨果的酚类概况、生物活性总含量和抗氧化活性

Alam Zeb , Fazal Rahman
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引用次数: 0

摘要

本研究描述了巴基斯坦种植的两个重要梨品种的酚类化合物、总酚含量、总黄酮含量、总花青素含量和自由基清除活性。采用 HPLC-DAD 反相色谱法研究酚类化合物。分光光度法测量了总黄酮含量、总酚含量、总花青素含量和自由基清除活性。结果表明,康美斯梨提取物中含有 21 种酚类化合物,博斯克梨提取物中含有 16 种酚类化合物。其中包括 3-咖啡酰奎宁酸、对香豆酰己糖-4-己糖苷、5-香豆酰奎宁酸、顺式-5-香豆酰奎宁酸、(+)-儿茶素-3-葡萄糖苷、鞣花酸二己糖苷、槲皮素-3-芸香糖苷、二碘酪醇-7-芸香糖苷、3-羟基香紫苏-6′-己糖苷、(-)-表没食子儿茶素、槲皮素五糖基六糖苷、(-)-表没食子儿茶素-3-没食子酸酯、表儿茶素-3-(4-甲基)没食子酸酯、迷迭香酸、青花素-3,5-二葡萄糖苷、4-咖啡酰-5-香豆酰奎宁酸是在康美斯梨和博斯克梨中鉴定出的主要酚类化合物。除总花青素含量外,所选栽培品种之间在总酚含量、总黄酮含量和自由基清除活性值方面存在显著差异。总之,所选梨样品含有重要的酚类化合物,具有抗氧化特性。
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Phenolic profile, total bioactive contents, and antioxidant activity of pear fruits

This work describes the profiling of phenolic compounds, total phenolic contents, total flavonoid contents, total anthocyanins, and radical scavenging activity of two important cultivars of pears grown in Pakistan. The HPLC-DAD reversed phase chromatography was used to study phenolic compounds. The spectrophotometry was done to measure the total flavonoid contents, total phenolic contents, total anthocyanin contents, and radical scavenging activity. Results showed 21 phenolic compounds in the extract of Comice pears and 16 in Bosc pears. These include 3-caffeoylquinic acid, p-coumaroylhexose-4-hexoside, 5-coumaroylquinic acid, cis-5-coumaroylquinic acid, (+)-catechin-3-glucoside, ellagic acid dihexoside, quercetin-3-rutinoside, eriodictyol-7-rutinoside, 3-hydroxyphloretin-6′-hexoside, (−)-epigallocatechin, quercetin pentosyl hexoside, (−)-epigallocatechin-3-gallate, epicatechin-3-(4-methyl)-gallate, rosmarinic acid, cyanidin-3,5-diglucoside, 4-caffeoyl-5-coumaroylquinic acid were major identified phenolic compounds in both Comice and Bosc pears. Except for total anthocyanin contents, there were significant differences between the selected cultivars in terms of total phenolic contents, total flavonoid contents, and radical scavenging activity values. In conclusion, the selected pear samples contain important phenolic compounds and possess antioxidant properties.

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来源期刊
Food chemistry advances
Food chemistry advances Analytical Chemistry, Organic Chemistry, Chemistry (General), Molecular Biology
CiteScore
1.90
自引率
0.00%
发文量
0
审稿时长
99 days
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