Abstract
The ability of Aspergillus strains to utilize thin stillage to produce malic acid was compared. The highest malic acid was produced by Aspergillus niger ATCC 9142 at 17 g l−1. Biomass production from thin stillage was similar with all strains but ATCC 10577 was the highest at 19 g l−1. The highest malic acid yield (0.8 g g−1) was with A. niger ATCC 9142 and ATCC 10577 on the stillage. Thus, thin stillage has the potential to act as a substrate for the commercial production of food-grade malic acid by the A. niger strains.
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Financial support of this project by the South Dakota Agricultural Experiment Station Grant SD00H198-07 was greatly appreciated.
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West, T.P. Malic acid production from thin stillage by Aspergillus species. Biotechnol Lett 33, 2463–2467 (2011). https://doi.org/10.1007/s10529-011-0720-7
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DOI: https://doi.org/10.1007/s10529-011-0720-7