The best utilization of D. zingiberensis C.H. Wright by an eco-friendly process.
An eco-friendly process for the best utilization of D. zingiberensis C.H. Wright tubers was developed. In the first stage, cellulose and ethanol were recovered by physical separation, multi-enzymes hydrolysis with yeast fermentation, and in the second stage diosgenin was separated using ethanol-modified supercritical carbon dioxide extraction. The new approach could not only recover 95% of diosgenin production, 95% of ethanol and 75% of cellulose, but also efficiently reduce 88% of COD in wastewater compared with the conventional method, which only extract diosgenin with discharging 80,000mg/l of COD into public sewers. The research indicates that the proposed system could be a clean and technological-efficient alternative to conventional processing of D. zingiberensis C.H. Wright tubers in industry.
Huang
Wen
W
Institute for Nanobiomedical Technology and Membrane Biology, State Key Laboratory of Biotherapy of Human Diseases, Cancer Center, West China Hospital, West China Medical School, Sichuan University, Chengdu 610041, China. hwpharm@tom.com
Zhao
Huazhang
H
Ni
Jinren
J
Zuo
Hang
H
Qiu
Linli
L
Li
Hua
H
Li
Hui
H
D002482:Cellulose / Q000737:chemistry; D002851:Chromatography, High Pressure Liquid; D004144:Diosgenin / Q000302:isolation & purification / Q000378:metabolism; D004463:Ecology; D000431:Ethanol / Q000737:chemistry; D010100:Oxygen / Q000032:analysis; D010944:Plants / Q000378:metabolism*; D014867:Water / Q000737:chemistry
D014867:Water; D000431:Ethanol; D002482:Cellulose; D004144:Diosgenin; D010100:Oxygen