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Optically pure lactic acid production from softwood-derived mannose by Pediococcus acidilactici

Campos, Joana LU ; Bao, Jie and Lidén, Gunnar LU (2021) In Journal of Biotechnology 335. p.1-8
Abstract

Softwood is of interest as a renewable carbon source for production of lactic acid. Softwood hydrolysate contains a high content of mannose. Lactic acid production from mannose by two modified strains, L-lactic acid producing Pediococcus acidilactici TY112 and D-lactic acid producing ZP26, was investigated in the current work. The two strains efficiently converted mannose to L- and D-lactate isomers with an optical purity exceeding 99 %, although the mannose utilization rates were lower than the glucose utilization rates. The mannose conversion to L- and D-lactic acids by P. acidilactici was also confirmed in dilute spruce hemicellulose hydrolysate. The present study... (More)

Softwood is of interest as a renewable carbon source for production of lactic acid. Softwood hydrolysate contains a high content of mannose. Lactic acid production from mannose by two modified strains, L-lactic acid producing Pediococcus acidilactici TY112 and D-lactic acid producing ZP26, was investigated in the current work. The two strains efficiently converted mannose to L- and D-lactate isomers with an optical purity exceeding 99 %, although the mannose utilization rates were lower than the glucose utilization rates. The mannose conversion to L- and D-lactic acids by P. acidilactici was also confirmed in dilute spruce hemicellulose hydrolysate. The present study provides important knowledge on utilization of the spectrum of fermentable sugars in softwood for future production of chiral lactic acid from lignocellulose feedstocks.

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author
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organization
publishing date
type
Contribution to journal
publication status
published
subject
keywords
Lactic acid, Hexose metabolism, Pediococcus acidilactici
in
Journal of Biotechnology
volume
335
pages
8 pages
publisher
Elsevier
external identifiers
  • scopus:85107553149
  • pmid:34090945
ISSN
0168-1656
DOI
10.1016/j.jbiotec.2021.06.007
language
English
LU publication?
yes
id
b900b54a-9c01-496f-9995-7ecc1ec1c26a
date added to LUP
2021-07-06 11:04:34
date last changed
2024-06-15 13:14:01
@article{b900b54a-9c01-496f-9995-7ecc1ec1c26a,
  abstract     = {{<p>Softwood is of interest as a renewable carbon source for production of lactic acid. Softwood hydrolysate contains a high content of mannose. Lactic acid production from mannose by two modified strains, <sub>L</sub>-lactic acid producing Pediococcus acidilactici TY112 and <sub>D</sub>-lactic acid producing ZP26, was investigated in the current work. The two strains efficiently converted mannose to <sub>L</sub>- and <sub>D</sub>-lactate isomers with an optical purity exceeding 99 %, although the mannose utilization rates were lower than the glucose utilization rates. The mannose conversion to <sub>L</sub>- and <sub>D</sub>-lactic acids by P. acidilactici was also confirmed in dilute spruce hemicellulose hydrolysate. The present study provides important knowledge on utilization of the spectrum of fermentable sugars in softwood for future production of chiral lactic acid from lignocellulose feedstocks.</p>}},
  author       = {{Campos, Joana and Bao, Jie and Lidén, Gunnar}},
  issn         = {{0168-1656}},
  keywords     = {{Lactic acid; Hexose metabolism; Pediococcus acidilactici}},
  language     = {{eng}},
  month        = {{07}},
  pages        = {{1--8}},
  publisher    = {{Elsevier}},
  series       = {{Journal of Biotechnology}},
  title        = {{Optically pure lactic acid production from softwood-derived mannose by Pediococcus acidilactici}},
  url          = {{http://dx.doi.org/10.1016/j.jbiotec.2021.06.007}},
  doi          = {{10.1016/j.jbiotec.2021.06.007}},
  volume       = {{335}},
  year         = {{2021}},
}