高压电场对SOD活性的影响及其紫外光谱研究  

Effect of high voltage electric field on SOD activity by ultraviolet spectra

作　　者：许强[1] 杨体强[2,3] 王苗[4] 

机构地区：[1]宝鸡文理学院物理与信息技术系,宝鸡712007 [2]内蒙古自治区离子束生物工程重点实验室,呼和浩特010021 [3]内蒙古大学物理科学与技术学院,呼和浩特010021 [4]宝鸡文理学院图书馆,宝鸡721016

出　　处：《食品科技》2011年第7期89-91,94,共4页Food Science and Technology

基　　金：陕西省科学技术研究发展计划项目(2010K02-08);宝鸡文理学院重点项目(ZK08114)

摘　　要：利用不同电场强度处理超氧化物歧化酶(Superoxide dismutase,SOD),测试高压电场处理前后酶的活性和紫外光谱。结果表明:高压电场可使酶活性降低,其紫外光谱测试表明,不同电场强度可以改变酶的构象。酶活性的降低可能是由酶构象的改变引起。研究结果对解释静电宏观生物效应具有重要意义。After the Superoxide dismutase（SOD） was treated with different strength of high voltage electric field,activity of SOD and ultraviolet spectra were measured.The study showed that the activity of SOD was decreased by the certain strength of electric field.The ultraviolet spectra showed that conformation was greatly changed by high voltage electric field.The activity decrease possibly was caused by the conformation variations of SOD.The result of this study has important meaning to explain the macroscopical electrostatic biological effects.

关 键 词：高压电场 超氧化物歧化酶 紫外光谱 构象 活性 

分 类 号：Q683[生物学—生物物理学]