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| 植物油甲醇萃取物的自由基清除能力及其与多酚、生育酚含量的相关性 |
| Free radical scavenging activity of methanol extract of vegetable oil and its correlation with contents of tocopherol and polyphenol |
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| DOI： |
| 中文关键词: 植物油 甲醇萃取物 自由基清除能力 生育酚 多酚 相关性 |
| 英文关键词:vegetable oil methanol extract free radical scavenging activity tocopherol polyphenol correlation |
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| 中文摘要: |
| 研究评估10种常见植物油甲醇萃取物的ORAC、FRAP、ABTS和DPPH自由基清除能力，并将自由基清除能力与多酚、生育酚含量进行相关性分析。结果表明：所有样品对4种自由基平均清除能力依次为FRAP>ORAC>ABTS>DPPH；各种植物油甲醇萃取物清除不同自由基的能力不同，芝麻油甲醇萃取物的ORAC清除能力最强，高达1 187.43 μmol TE/100 g；植物油多酚含量较生育酚含量与其甲醇萃取物的自由基清除能力具有更好的相关性，ORAC和ABTS自由基清除能力与植物油多酚含量在P<0.01水平上呈显著相关，相关系数分别达0.819和0.946；DPPH和FRAP自由基清除能力与植物油多酚、生育酚含量均在P<0.05水平显著相关。 |
| 英文摘要: |
| The free radical scavenging activities of methanol extracts of 10 different vegetable oils were evaluated by ORAC, FRAP, ABTS and DPPH methods, and correlation analysis was used to evaluate relationship between free radical scavenging activities and contents of tocopherol and polyphenol.The results showed that the order of the four free radical scavenging activities of all the samples from high to low was FRAP, ORAC, ABTS, DPPH. The free radical scavenging activities of methanol extracts of different vegetable oils were different from each other, and the scavenging activity on ORAC free radical of sesame oil methanol extract was the highest, reaching 1 187.43 μmol TE/100 g.Polyphenol content had better correlation with free radical scavenging activity of methanol extract of vegetable oil than tocopherol content.The correlations between polyphenol content and scavenging activities on ORAC and ABTS free radicals were statistically significant (P＜0.01),and the correlation coefficients ware 0.819 and 0.946,respectively.The correlations between contents of polyphenol and tocopherol and scavenging activities on DPPH and FRAP free radicals were all statistically significant (P＜0.05). |
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