鱼腥草浸泡酒的多酚和香味成分分析及其抗氧化活性

摘要

利用顶空固相微萃取（HS-SPME）结合气相色谱-质谱联用仪（GC-MS）分析鱼腥草浸泡酒中香味成分以及紫外分光光度计（uv）测定其多酚含量及1，1-二苯基-2-三硝基苯肼（DPPH）自由基清除能力。结果表明，主要香味成分为羧酸及羧酸酯、醇类、萜类以及醛酮类物质，其中己酸乙酯占检出成分的66．94％，丁酸乙酯（6．55％），月桂烯（4．51％），戊酸乙酯（2．00％），并检测出药理学活性的甲基正壬酮和乙酰龙脑等物质；多酚含量为1．92mg／mL，自由基清除率为62．00％。结果表明，因鱼腥草有较独特的化学以及丰富的营养成分，使得鱼腥草浸泡酒具有较丰富的营养及药理成分物质，具有一定的保健功能。%Phenolics content in Houttuynia cordata Thunb steeping liquor was measured and its DPPH radical removal capacity was evaluated by HS-SPME coupled with.GC-MS. The results showed that main flavoring compositions of Houttuynia cordata Thunb steeping liquor were carboxylic acids and carboxylie esters,alcohols, terpene, aldehydes and ketone including ethyi eaproate (66,94 %), ethyl butyrate (6.55 %), myrcene (4.51%) and ethyl valerate (2.00 %). Besides, some bioactive compositions such as. 2-undecanone and bornyl acetate were detected. The content of phenolics was 1.92 mg/mL and DPPH radical removal capacity was 62 %. This study proved that Houttuynia cordata Thunb contains specific chemical compositions and rich nutrients, which makes healthcare functions ofHouttuynia cordata Thunb steeping liquor.