Fig. 6. Performance of the continuous ethanol fermentation of thick juice without
fresh yeast cells feed. (A) Change of ethanol concentration. Diamonds, R1; squares, R2.
(B) Changes of number of yeast and their viability. Solid lines, yeast cell viability;
dotted lines, number of yeast; diamonds, R1; squares, R2. (C) Changes of VFAs concentration. Solid lines, lactic acid; dotted lines, acetic acid; diamonds, R1; squares, R2.
Fig. 6. Performance of the continuous ethanol fermentation of thick juice withoutfresh yeast cells feed. (A) Change of ethanol concentration. Diamonds, R1; squares, R2.(B) Changes of number of yeast and their viability. Solid lines, yeast cell viability;dotted lines, number of yeast; diamonds, R1; squares, R2. (C) Changes of VFAs concentration. Solid lines, lactic acid; dotted lines, acetic acid; diamonds, R1; squares, R2.
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