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酵母应激条件下产生抗氧化剂的研究
引用本文:白东清,郭梅,王玉,路福平,杜连祥,孙婷婷.酵母应激条件下产生抗氧化剂的研究[J].食品研究与开发,2005,26(6):54-57.
作者姓名:白东清  郭梅  王玉  路福平  杜连祥  孙婷婷
作者单位:1. 天津科技大学生物工程学院,市工业微生物重点实验室,天津,300222;天津农学院水产科学系,市水产生态及养殖重点实验室,天津,300384
2. 天津科技大学生物工程学院,市工业微生物重点实验室,天津,300222;天津农学院食品科学系
3. 天津农学院农学系,天津,300384
4. 天津科技大学生物工程学院,市工业微生物重点实验室,天津,300222
基金项目:国家自然科学基金资助项目(No.20206025)
摘    要:本文对酿酒酵母在低温和H2O2两种应激条件下产生的LYCD进行了研究,主要探讨了其中抗氧化物质的变化情况.结果表明:低温预处理能够显著增加细胞内谷胱甘肽(GSH)含量,提高SOD、CAT活性.低温预处理可以诱导对致死浓度H2O2的抗性.低温和H2O2刺激酵母细胞形成的LYCD对细胞具有抗氧化作用.

关 键 词:活性酵母细胞衍生物  应激  抗氧化剂
收稿时间:2005-03-28
修稿时间:2005年3月28日

STUDIES ON ANTIOXIDANTS PRODUCTED BY S. CEREVISIAE IN STRESS
BAI Dongqing,GUO Mei,WANG Yu,LU Fuping,DU Lianxiang,SUN Tingting.STUDIES ON ANTIOXIDANTS PRODUCTED BY S. CEREVISIAE IN STRESS[J].Food Research and Developent,2005,26(6):54-57.
Authors:BAI Dongqing  GUO Mei  WANG Yu  LU Fuping  DU Lianxiang  SUN Tingting
Affiliation:1.Tianjin Key Lab of Industrial Microbiology, College of Biotechnology, Tianjin University of Science and Technology, Tianjin, 300222;2.Tianjin Key Lab of Ecology and Aquaculture, Department of Fishery Science, Tianjin Agricultural College, Tianjin, 300384;3.Department of Food Science, Tianjin Agricultural College, Tianjin, 300384
Abstract:This study was based on Live Yeast Cell Derivative (LYCD), especially on change of antioxidants,which was produced by live yeast cell stressed with low temperature and H2O2. The results showed that pretreatment of low temperature could increase the content of GSH and activities of SOD and CAT. Pretreatment of low temperature could induce resistance to lethal concentration of H2O2. It indicated that LYCD could have resistance to oxidative condition.
Keywords:LYCD  stress  antioxidants
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