|
|||||
|
|
Influence of oligosaccharides on the growth and tolerance capacity of lactobacilli to simulated stress environment |
|
| Authors: | X Pan T Wu L Zhang L Cai Z Song |
| Institution: | Chemistry and Bioengineering Center, Department of Chemistry, Zhejiang University, Hangzhou, China; Key Laboratory for Molecular Design and Nutrition Engineering, Ningbo Institute of Technology, Zhejiang University, Ningbo, China; College of Fisheries and Life Science, Shanghai Ocean University, Shanghai 201306, China |
| Abstract: | Aims: Lactobacilli should resist stress environments in industry process and gastrointestinal tract before exerting their beneficial effects. To explore the possible stabilizers in probiotic products, prebiotic oligosaccharides were investigated. Methods and Results: We investigated the effect of four selected oligosaccharides on the survival of probiotic Lactobacillus plantarum and L. acidophilus to simulated stress conditions. It was found that the tolerance of lactobacilli to simulated artificial gastrointestinal juice, heat treatment and phenol solution was obviously enhanced in fructo-oligosaccharides (FOS) and xylo-oligosaccharides (XOS) group. In addition, chito-oligosaccharides (COS), manno-oligosaccharides (MOS) and glucose also had positive effect compared with control group (without sugar). Conclusions: Prebiotic oligosaccharides, especially XOS and FOS added in medium have protection function to lactobacilli in stress environments. The protection function of oligosaccharides may correlate with the bacteria growth, which was stimulated by these oligosaccharides. Significance and Impact of the Study: Prebiotic oligosaccharides may be used as stabilizers in probiotic products. |
| Keywords: | lactobacilli oligosaccharides stabilizer stress environment tolerance |