A novel biocatalyst, LU2, for efficient production of succinic acid using whey permeate as a cost-effective carbon source.

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ID: 107554
2020
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Abstract
Succinic acid (SA), a valuable chemical compound with a broad range of industrial uses, has become a subject of global interest in recent years. The bio-based production of SA by highly efficient microbial producers from renewable feedstock is significantly important, regarding the current trend of sustainable development.In this study, a novel bacterial strain, LU2, was isolated from cow rumen and recognized as an efficient producer of SA from lactose. Proteomic and genetic identifications as well as phylogenetic analysis were performed, and strain LU2 was classified as an species. The optimal conditions for SA production were 100 g/L lactose, 10 g/L yeast extract, and 20% inoculum at pH 7.0 and 34 °C. Under these conditions, approximately 51.35 g/L SA with a yield of 53% was produced when batch fermentation was conducted in a 3-L stirred bioreactor. When lactose was replaced with whey permeate, the highest SA concentration of 57.7 g/L was achieved with a yield and total productivity of 62% and 0.34 g/(L*h), respectively. The highest productivity of 0.67 g/(L*h) was observed from 48 to 72 h of batch fermentation, when . LU2 produced 16.23 g/L SA.This study shows that the newly isolated strain . LU2 has great potential as a new biocatalyst for producing SA from whey permeate.
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szczerba2020abiotechnology Use this key to autocite in the manuscript while using SciMatic Manuscript Manager or Thesis Manager
Authors Szczerba, Hubert;Komoń-Janczara, Elwira;Dudziak, Karolina;Waśko, Adam;Targoński, Zdzisław;
Journal biotechnology for biofuels
Year 2020
DOI
10.1186/s13068-020-01739-3
URL
Keywords
fermentation lactose enterobacter aerogenes succinic acid whey permeate

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