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l-Lactic acid production from fructose by chitosan film-coated sodium alginate-polyvinyl alcohol immobilized Lactobacillus pentosus cells and its kinetic analysis

Authors
  • Wang, Jianfei1
  • Guo, Huanyu1
  • Huang, Jiaqi1, 2
  • Jiang, Shaoming1
  • Hou, Shibo1
  • Chen, Xingyu1
  • Lv, Hujie1
  • Bi, Xudong1, 3
  • Hou, Maolin1, 4
  • Lin, Hebei1
  • Lu, Yuming1
  • Qiao, Jinyue1
  • Yang, Ruiyi1
  • Liu, Shijie1
  • 1 SUNY College of Environmental Science and Forestry, Syracuse, NY13210, USA , Syracuse (United States)
  • 2 The Center for Biotechnology and Interdisciplinary Studies (CBIS) at Rensselaer Polytechnic Institute, Troy, NY12180, USA , Troy (United States)
  • 3 California State University, Los Angeles (CSULA), Los Angeles, CA, 90032, USA , Los Angeles (United States)
  • 4 City University of Hong Kong, Hong Kong, 999077, China , Hong Kong (China)
Type
Published Article
Journal
Bioresources and Bioprocessing
Publisher
Springer Singapore
Publication Date
Apr 07, 2021
Volume
8
Issue
1
Identifiers
DOI: 10.1186/s40643-021-00380-8
Source
Springer Nature
Keywords
License
Green

Abstract

Under the optimal conditions of immobilization and fermentation, the highest LA yield of 0.966 ± 0.006 g/g fructose and production rate of 2.426 ± 0.018 g/(L × h) with an error of -0.5% and -0.2% to the predicted results were obtained from batch fermentation by the CS film-coated SA-PVA immobilized L. pentosus cells. The LA yield and production rate of these immobilized cells were 2.7% and 10.1% higher than that of normal SA-PVA immobilized cells respectively, and they were 5.7% and 48.4% higher than that of free cells, respectively. The effect of temperature on different types of immobilized cells and free cells was significantly different, but the effect of pH on different types of cells was not much different. The kinetic models could effectively describe the different fermentation performances of three types of cells. The immobilized cells have excellent reusability to conduct 9 runs of repeated batch fermentation.

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