###
食品研究与开发:2020,41(12):37-41
本文二维码信息
码上扫一扫!
酸胁迫和冷胁迫对鼠李糖乳杆菌的交叉保护作用
(1.扬州大学食品科学与工程学院,江苏扬州225009;2.扬州大学江苏省乳品生物技术与安全控制重点实验室,江苏扬州225009;3.江苏省乳业生物工程技术研究中心,江苏扬州225004)
Cross-protection of Lactobacillus rhamnosus Under Acid Stress and Cold Stress
(1.School of Food Science and Engineering,Yangzhou University,Yangzhou 225009,Jiangsu,China;2.Jiangsu Key Laboratory of Dairy Biotechnology and Safety Control,Yangzhou University,Yangzhou 225009,Jiangsu,China;3.Jiangsu Dairy Biotechnology Research Center,Yangzhou 225004,Jiangsu,China)
摘要
图/表
参考文献
相似文献
本文已被:浏览 1219次   下载 284
投稿时间:2019-09-24    
中文摘要: 选用鼠李糖乳杆菌(Lactobacillus rhamnosus)hsryfm 1301为出发菌株,比较15℃低温和pH 4.0酸性条件下,对氧化、酸、渗透压和高温4种常见胁迫的耐受能力,探究低温预处理和酸性预处理对L.rhamnosus hsryfm 1301的交叉保护作用。结果表明,经过低温预处理的L.rhamnosus hsryfm 1301比对照样品在7%NaCl渗透压胁迫下的存活率提高了约高20%;L.rhamnosus hsryfm 1301经过pH4的酸性预处理比对照样品在pH3的酸性胁迫下表现出高约11%的存活率;两种预处理手段对氧化胁迫和高温胁迫均无明显交叉保护作用。
Abstract:Lactobacillus rhamnosus hsryfm 1301 was selected as the research strain.By comparing the tolerance of L.rhamnosus hsryfm 1301 which was pre-treated by low temperature(15 ℃)or acid(pH 4.0)to oxidative,acid,osmotic pressure and heat stresses,the cross-adaption of L.rhamnosus hsryfm 1301 to cold,acid stresses and oxidative,acid,osmotic,heat stresses was investigated.The results showed that the survival rate of L.rhamnosus hsryfm 1301 pretreated at low temperature was about 20%higher than that of the control sample under 7%NaCl osmotic stress,and the survival rate of L.rhamnosus hsryfm 1301 pretreated at pH4 was about 11%higher than that of the control sample under acid stress at pH3.Both pretreatment methods had no significant effect on oxidative stress and heat stress tolerance.
文章编号:202012007     中图分类号:    文献标志码:
基金项目:国家自然科学基金面上项目(31571855);江苏省高校自然科学研究重大项目(17KJA550004);国家自然科学基金青年科学基金项目(31801565);江苏现代农业(奶牛)产业技术体系基金项目(JATS[2019]253)
引用文本:


用微信扫一扫

用微信扫一扫