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Chemically pre-treated brewer’s spent grain was saccharified with cellulase producing a hydrolysate with approx. 50 g glucose l−1. This hydrolysate was used as a fermentation medium without any nutrient supplementation by Lactobacillus delbrueckii, which produced L-lactic acid (5.4 g l−1) at 0.73 g g−1 glucose consumed (73% efficiency). An inoculum of 1 g dry cells l−1 gave the best yield of the process,...
Thirty different yeast strains belonging to four different genera (Candida, Debaryomyces, Hansenula and Pichia) were evaluated for xylitol production in rice straw hemicellulose hydrolysate under two aeration levels. Candida guillier-mondii FTI-20037, C. mogii NRRL Y-17032, C. parapsilosis IZ-1710 and C. veronae IZ-945 produced xylitol from rice straw hemicellulose hydrolysate with high yields (>60%)...
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