2021 Volume 50 Issue 3 Pages 150-155
The tunic of Halocynthia roretzi, which is a waste product, was used as the cellulosic biomass to produce L-lactic acid as the raw material for biodegradable plastic. Cellulose in the tunic powder was hydrolyzed by commercial cellulase, with a higher conversion rate than that in rice straw powder and bamboo powder. The tunic powder was pretreated under conditions with low environmental impact and energy requirements. L-lactic acid was produced from the pretreated tunic powder through simultaneous saccharification and fermentation. The L-lactic acid concentration reached 32.7g/L at the end of the process.
