发酵猪血优良菌株A32的16S rRNA鉴定  

Appraisal of superior fermentable blood strain A32 by 16S rRNA

作　　者：岑怡红[1] 卢向阳[2] 蒋红梅[2] 田云[2] 方俊[2] 

机构地区：[1]兴义民族师范学院,兴义562400 [2]湖南农业大学生物科学技术学院,长沙410128

出　　处：《食品科技》2010年第7期21-23,共3页Food Science and Technology

基　　金：中国博士后基金项目(20070410984);湖南省教育厅重点项目(07A029);湖南省科技重大专项项目(2007FJ1003;2007RS40227);湖南农大人才引进基金项目(07YJ07)

摘　　要：利用平板划线法,从农村个体屠宰场土壤中分离获得了菌株A32,该菌株在以猪血为惟一氮源的培养基上生长旺盛且蛋白酶活力强,利用A32菌株发酵猪血粉,使猪血粉的蛋白质含量下降了28.7%,氨基酸态氮含量上升了4.20倍,可溶蛋白含量上升了60%,说明A32菌株是一株发酵猪血的优良菌株,通过16SrRNA鉴定A32为枯草芽孢杆菌。By through filtering the fermentable blood meal strains,we have got some strain A32 which grow blooming and its protease activity are superior.Quality of A32 strains fermenting swine blood meal showed that protein of blood meal decreased 28.7%,N of amino in blood meal increased 4.20 times,soluble protein of blood meal increased 60%.All indicate that A32 is a fine strains to ferment swine blood.Strain A32 was appraisaled as bacillus subtilis by 16S rRNA.

关 键 词：猪血粉 发酵 菌株A32 鉴定 

分 类 号：TS201.3[轻工技术与工程—食品科学]