【摘要】：采用高效液相色譜儀對我國6種棗果中多酚物質(zhì)、三萜酸、環(huán)核苷酸、VC、α-生育酚與β-胡蘿卜素的含量進行測定,比較其抗氧化能力,探究棗果抗氧化能力與抗氧化物之間的相關(guān)性。結(jié)果表明:不同品種棗果的上述活性物質(zhì)含量存在較大差異,木棗的總酚、總黃酮、單酚類物質(zhì)(兒茶素、表兒茶素、蘆丁、香草酸、咖啡酸和丁香酸)含量均最高,棗果的總酚與其FRAP值及清除ABTS·+能力顯著相關(guān),丁香酸含量與清除·DPPH能力存在顯著相關(guān),而其余酚類物質(zhì)均與棗果的抗氧化特性不存在顯著相關(guān)性;哈密大棗中α-生育酚、β-胡蘿卜素、c AMP含量均顯著高于其余棗果;金絲小棗中c GMP含量顯著高于其余5種棗果;除梨棗外,其余棗果的樺木酸含量最高,齊墩果酸次之,熊果酸含量最低。
[Abstract]:The contents of polyphenol, triterpene acid, cyclic nucleotide, VC, 偽 -tocopherol and 尾 -carotene in 6 Chinese jujube fruits were determined by high performance liquid chromatography (HPLC). To explore the correlation between antioxidant ability and antioxidants in jujube fruit. The results showed that the contents of the above active substances in different varieties of jujube were different. The contents of total phenol, total flavonoids and monophenols (catechin, epigallocatechin, rutin, vanillic acid, caffeic acid and eugenic acid) were the highest. The total phenol of jujube fruit was significantly correlated with its FRAP value and ABTS scavenging ability, the content of eugenic acid was significantly correlated with the ability to clear DPPH, but the other phenolic substances had no significant correlation with the antioxidant characteristics of jujube fruit. The contents of 偽 -tocopherol and 尾 -carotene, c AMP in Hami jujube were significantly higher than those in other jujube fruits, and the c GMP contents in Jinsixiao jujube were significantly higher than those in the other five jujube fruits. The content of betulinic acid was the highest in the other jujube fruit, followed by oleanolic acid and ursolic acid.
【作者單位】： 湖南農(nóng)業(yè)大學食品科學與技術(shù)學院;中國農(nóng)業(yè)大學食品科學與營養(yǎng)工程學院;湖南省農(nóng)業(yè)科學院農(nóng)產(chǎn)品加工研究所;
【基金】：國家自然科學基金項目(31501543) “十二五”農(nóng)村領(lǐng)域國家科技計劃課題(2012BAD36B07-03) 湖南農(nóng)業(yè)科技創(chuàng)新項目(2017GP16)
【分類號】：O657.72;TS255.1

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本文編號：2312374