乳酸菌在自然界中的分布范围非常广泛,其中,有些特殊种类的乳酸菌在某些极端条件下仍然具有很好的生存能力。筛选具有较强耐盐性、p H值耐受性以及较宽温度生长范围的乳酸菌,能够大大拓宽其应用范围,其耐性机制也是微生物学家研究的热点。综述了乳酸菌在高质量分数盐、极低p H值、极高温、极低温等极端条件下,对乳酸菌的筛选与鉴定,耐性机理及应用。
Distribution of Lactic acid bacteria is very broad in nature, among them,some special kinds of lactic acid bacteria still has good viability in extreme conditions. Screening lactic acid bacteria with a strong salt tolerance, p H tolerance and a widely growth temperature range can greatly broaden its range of applications, its resistance mechanism is a hot research for microbiologist. We make a review about the screening and identification of lactic acid bacteria at high concentrations of salt, low p H, very high temperature, very low temperature and other extreme conditions, Containing its tolerance mechanism and application.