固定化参数对共固定在海藻酸钙凝胶珠中的嗜热链球菌和保加利亚乳杆菌生长及乳酸产生的影响。

Influence of immobilization parameters on growth and lactic acid production by Streptococcus thermophilus and Lactobacillus bulgaricus co-immobilized in calcium alginate gel beads.

作者信息

Garbayo I, Vílchez C, Vega J M, Nava-Saucedo J E, Barbotin J N

机构信息

Departamento de Química y CC.MM., (Area de Bioquímica), Facultad de Ciencias Experimentales, Universidad de Huelva, Campus del Carmen, 21017 Huelva, Spain.

出版信息

Biotechnol Lett. 2004 Dec;26(23):1825-7. doi: 10.1007/s10529-004-5134-3.

DOI:10.1007/s10529-004-5134-3

PMID:15672222

Abstract

Streptococcus thermophilus and Lactobacillus bulgaricus were co-immobilized in different systems with varying calcium (0.1-1.5 M) and alginate (1-2%, w/v) concentrations. Highest lactic acid production was 35 g l(-1) when both bacteria were in high viscosity beads (1%, w/v alginate) hardened in 0.1 M CaCl2 . The gel bead composition affected size and distribution of entrapped lactic acid bacteria.

摘要

嗜热链球菌和保加利亚乳杆菌被共同固定在不同体系中，这些体系具有不同的钙（0.1 - 1.5 M）和海藻酸钠（1 - 2%，w/v）浓度。当两种细菌处于在0.1 M氯化钙中硬化的高粘度珠子（1%，w/v海藻酸钠）中时，乳酸产量最高可达35 g l⁻¹。凝胶珠的组成影响包埋乳酸菌的大小和分布。