Add time:07/25/2019         Source:sciencedirect.com

In this study, the possibility of TRI-N-DECYLAMINE (cas 1070-01-5) (TDA) was investigated as the extractant in extractive lactic acid fermentation with a recombinant yeast being used. Extractive fermentation with TDA did not provide high l-lactic acid production relative to fermentation without extraction. Through determination of trace components of the TDA, it was found that the TDA contained a high concentration of 1-decylaldehyde, which was confirmed to be toxic to yeast and to have an inhibitory effect on cell growth even at low concentration (40 ppm). When 1-decylaldehyde in TDA was reduced from 700 ppm to 33 ppm, the productivity and total concentration of lactic acid increased by 1.8 times and 2.5 times, respectively.

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