초록
<P>Yeasts are good candidates to utilize the hydrolysates of lignocellulose, the most abundant bioresource, for bioproducts. This study aimed to evaluate the efficiencies of single-cell protein (SCP) and xylitol production by a novel yeast strain, <I>Candida intermedia</I> FL023, from lignocellulosic hydrolysates and xylose. This strain efficiently assimilated hexose, pentose, and cellubiose for cell mass production with the crude protein content of 484.2 g kg<SUP>−1</SUP> dry cell mass. SCP was produced by strain FL023 using corncob hydrolysate and urea as the carbon and nitrogen sources with the dry cell mass productivity 0.86 g L<SUP>−1</SUP> h<SUP>−1</SUP> and the yield of 0.40 g g<SUP>−1</SUP> sugar. SCP was also produced using NaOH-pretreated <I>Miscanthus sinensis</I> straw and corn steep liquor as the carbon and nitrogen sources through simultaneous saccharification and fermentation with the dry cell productivity of 0.23 g L<SUP>−1</SUP> h<SUP>−1</SUP> and yield of 0.17 g g<SUP>−1</SUP> straw. <I>C. intermedia</I> FL023 was tolerant to 0.5 g L<SUP>−1</SUP> furfural, acetic acid, and syringaldehyde in xylitol fermentation and produced 45.7 g L<SUP>−1</SUP> xylitol from xylose with the productivity of 0.38 g L<SUP>−1</SUP> h<SUP>−1</SUP> and the yield of 0.57 g g<SUP>−1</SUP> xylose. This study provides feasible methods for feed and food additive production from the abundant lignocellulosic bioresources.</P>