GROWTH OF BIFIDOBACTERIA AND THEIR ENZYME PROFILES

被引:96
作者
DESJARDINS, ML
ROY, D
GOULET, J
机构
[1] FOOD RES & DEV CTR,DEPT FOOD SCI & TECHNOL,ST HYACINTHE J2S 8E3,QUEBEC,CANADA
[2] UNIV LAVAL,QUEBEC CITY G1K 7P4,QUEBEC,CANADA
关键词
Bifidobacteria; enzyme profiles; growth;
D O I
10.3168/jds.S0022-0302(90)78673-0
中图分类号
S8 [畜牧、 动物医学、狩猎、蚕、蜂];
学科分类号
0905 ;
摘要
Bifidobacteria of human origin (22 strains) were evaluated for their potential use in yogurt-type products. Strains were grouped according to their growth rate in 12% reconstituted skim milk. Among the strains that grew quickly and produced acid in milk rapidly, the ratio of acetic: lactic acid varied from .4:1.0 to 3.0:1.0 Enzyme profiles of all strains were determined with the API ZYM system. All bifidobacteria possessed α- and β-galactosidases and α-glucosidase activities. A harmful enzyme, β-glucuronidase, was detected in only one strain of bifidobacteria tested. The faster growing strains also possessed high leucine aminopeptidase activity. © 1990, American Dairy Science Association. All rights reserved.
引用
收藏
页码:299 / 307
页数:9
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