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Immobilization of Lactobacillus rhamnosus in mesoporous silica-based material: An efficiency continuous cell-recycle fermentation system for lactic acid production.
- Source :
-
Journal of Bioscience & Bioengineering . Jun2016, Vol. 121 Issue 6, p645-651. 7p. - Publication Year :
- 2016
-
Abstract
- Lactic acid bacteria immobilization methods have been widely used for lactic acid production. Until now, the most common immobilization matrix used is calcium alginate. However, Ca-alginate gel disintegrated during lactic acid fermentation. To overcome this deficiency, we developed an immobilization method in which Lactobacillus rhamnosus cells were successfully encapsulated into an ordered mesoporous silica-based material under mild conditions with a high immobilization efficiency of 78.77% by using elemental analysis. We also optimized the cultivation conditions of the immobilized L. rhamnosus and obtained a high glucose conversion yield of 92.4%. Furthermore, L. rhamnosus encapsulated in mesoporous silica-based material exhibited operational stability during repeated fermentation processes and no decrease in lactic acid production up to 8 repeated batches. [ABSTRACT FROM AUTHOR]
Details
- Language :
- English
- ISSN :
- 13891723
- Volume :
- 121
- Issue :
- 6
- Database :
- Academic Search Index
- Journal :
- Journal of Bioscience & Bioengineering
- Publication Type :
- Academic Journal
- Accession number :
- 115218031
- Full Text :
- https://doi.org/10.1016/j.jbiosc.2015.11.010