RRC ID 50773
Author Teng D, Kawai K, Mikajiri S, Hagura Y.
Title Stabilization of freeze-dried Lactobacillus paracasei subsp. paracasei JCM 8130T with the addition of disaccharides, polymers, and their mixtures.
Journal Biosci Biotechnol Biochem
Abstract Although freeze-drying is a widely used dehydration technique for the stabilizing of unstable lactic acid bacteria, Lactobacillus paracasei subsp. paracasei JCM 8130T (L. paracasei) is destabilized after freeze-drying and subsequent storage. In order to improve the stability of freeze-dried L. paracasei, effects of disaccharides (sucrose and trehalose), polymers (maltodextrin; MD and bovine serum albumin; BSA), and their mixtures on the survival rate of freeze-dried L. paracasei were investigated. The survival rate of non-additive sample decreased slightly after freeze-drying but decreased drastically after subsequent storage at 37 °C for 4 weeks. The reduction was diminished by the addition of disaccharides and polymers. The stabilizing effect of disaccharides was not affected by the co-addition of MD. In contrast, the disaccharide-BSA mixtures had a synergistic stabilizing effect, and the survival rates were largely maintained even after storage. It is suggested that the synergistic effect originates from the conformational stabilization of the dehydrated bacteria.
Volume 81(4)
Pages 768-773
Published 2017-4-1
DOI 10.1080/09168451.2017.1279852
PMID 28103748
MeSH Animals Cattle Disaccharides / chemistry Food Microbiology* Freeze Drying Humans Lacticaseibacillus paracasei / chemistry Lacticaseibacillus paracasei / drug effects* Polysaccharides / pharmacology Serum Albumin, Bovine / pharmacology Sucrose / pharmacology Temperature Trehalose / pharmacology Water / chemistry
IF 1.516
Times Cited 3
Resource
General Microbes JCM 8130