【摘要】 研究1株植物乳杆菌(N3)的生物学特性,实验结果表明该菌能耐受80~85℃的高温和0.20kg/cm2蒸汽压力;直接分解玉米淀粉的乳酸产率为7.05%(36 h)和8.19%(48 h);能耐受pH为4.5的酸性环境;在人工胃液中的活菌数为4.1×106CFU/g;对金霉素、土霉素、痢特灵和氟哌酸等抗生素的敏感性强,而对防霉剂和脱霉素不敏感。植物乳杆菌(N3)是1株优良的益生素生产菌。更多还原

【Abstract】 The biological characteristics of a Lactobacillus plantarum(N3) were studied.The results showed that it was able to endure high temperature of 80~85 ℃ and high steam pressure of 0.20 kg/cm2,to decompose corn starch into lactic acid directly by 7.05%(36 h) and 8.19%(48 h),to endure the acid conditions by pH value 4.5.The total number of alive Lactobacillus plantarum was 4.1×106 CFU/g in the artificial gastric juice.It was sensitive to antibiotics,such as Aureomycin,Terramycin,Furazolidone and Norfloxacin,but it wasn’t sensitive to the medicaments of preventing mildew.Above all,Lactobacillus plantarum(N3) was a better probiotics production germ.更多还原