机构地区: 河北经贸大学生物科学与工程学院
出 处: 《食品研究与开发》 2008年第10期151-153,共3页
摘 要: 为探讨香椿作为风味蔬菜是否具有抗氧自由基保健作用,采用黄嘌呤氧化法、改良的碘量法、亚硫酸钠-硝酸铝比色法分别对香椿芽(幼叶)的SOD、VC以及总黄酮含量进行测定。SOD酶活力达到4160U/g(鲜重),显著高于对照栽培蔬菜30%以上。VC含量达234.5μg/g(鲜重),高于对照蔬菜40%以上。总黄酮含量四月中旬达到688μg/g(干重),而后总黄酮含量逐渐下降。 To investigate the level of antioxidant in toona sinensis, SOD activity, contents of Vc and total flavonoids were determined saparately by xanthine oxidase method, improved iodometric method and colorimetric method. The results showed that SOD activity in toona sinensis blade was 4 160 U/(g·FW)(fresh weight), which was significantly higher 30 % than that of cultivated vegetable in control; the content of Vc was 234.5 μg/(g·FW), which was significantly 40 % higher than that of control. The content of total flavonoids of bud in Mid-April was 688μg/(g·FW), then the content gradually became decline.