|
KMID : 1024620100300020223
|
|
Food Science of Animal Resources
2010 Volume.30 No. 2 p.223 ~ p.231
|
|
|
Physiological Characteristics and Immunomodulating Activity by Lactobacillus paracasei subsp. paracasei BFI46 Isolated from New-Born Infant Feces
|
|
Lim Sang-Dong
Kim Kee-Sung
Cho Seong-A
DO Jung-Ryong
|
|
|
Abstract
|
|
|
In order to develop a new starter for fermented milk, Lactobacillus paracasei subsp. paracasei BFI46 (BFI46) obtained
from new-born infant feces was investigated for physiological characteristics. Good immunomodulating activity was evident compared with commercial lactic acid bacteria starter cultures. The optimum growth temperature of BFI46 was 40oC with 12 h required to reach pH 4.3. Testing with 13 different antibiotics revealed greatest sensitivity of BFI46 to penicillin- G and chloramphenicol, and heightened resistance to neomycin, kanamycin and polymyxin. BFI46 displayed higher esterase activities compared to 18 other enzymes, was comparatively tolerant to bile juice and able to survive at pH 2 for 3 h, and displayed high resistance against Escherichia coli and Salmonella Typhimurium with a survival rate of 57.14% and 96.36%, respectively. The results indicate that BFI46 could be an excellent starter culture for fermented milk with high level of immunomodulating activity.
|
|
|
KEYWORD
|
|
|
Lactobacillus paracasei subsp. paracasei, immunomodulating activity, physiological characteristics, fermented milk
|
|
|
FullTexts / Linksout information
|
|
|
|
|
|
Listed journal information
|
|
|