紫甘薯提取物对果蝇的紫外辐射保护作用  

Protective Effect of Extract from Purple Sweet Potatoes on Drosophila melanogaster Damaged by UV

作　　者：李津[1] 吕晓玲[1] 王婷婷[1] 杨雪吟[1] 

机构地区：[1]天津科技大学食品工程与生物技术学院,天津300457

出　　处：《天津科技大学学报》2012年第2期14-17,共4页Journal of Tianjin University of Science & Technology

基　　金：国家科技支撑计划项目(2011BAD23B02)

摘　　要：研究紫外线诱导后(20,W紫外灯下照射40,min)紫甘薯提取物对果蝇辐射损伤的保护作用.在紫外线氧化损伤果蝇模型中添加紫甘薯提取物后,果蝇寿命显著提高,且有剂量依赖性.紫甘薯提取物提高了紫外线氧化损伤果蝇体内的超氧化物歧化酶(SOD)比活力和过氧化氢酶(CAT)比活力,降低了丙二醛(MDA)水平.说明紫甘薯提取物具有抗氧化损伤、延缓衰老的作用,为紫甘薯提取物更好地应用于营养食品、保健食品中提供理论依据.The protective effect of extract from purple sweet potatoes on Drosophila melanogaster damaged by UV （20 W, 40 min）was studied. An oxidative damaged model of Drosophila melanogaster, damaged by UV, was established. The lifespans of Drosophila melanogaster were obviously increased after adding the extract from purple sweet potatoes in the model. The extract from purple sweet potatoes could also enhance the activities of SOD, CAT, and decrease the level of MDA of the UV damaged model, which suggests that the extract from purple sweet potatoes has some antioxidative effect on Drosophila melanogaster. The result of this reasearch can provide a theoretical basis when the extract from purple sweet potatoes is ap- plied to food and medicine.

关 键 词：紫甘薯提取物 紫外线辐射 果蝇 

分 类 号：TS264.4[轻工技术与工程—发酵工程]