期刊
BIORESOURCE TECHNOLOGY
卷 131, 期 -, 页码 485-491出版社
ELSEVIER SCI LTD
DOI: 10.1016/j.biortech.2013.01.001
关键词
Microwave irradiation; Alkaline pretreatment; Enzymatic hydrolysis; Green tea residue
资金
- Towa Foundation for Food Research in Japan
Total refinery of constituents of green tea residue was achieved by combination of microwave-assisted alkaline pretreatment and enzymatic hydrolysis. Alkaline pretreatment was effective at separating pectic polysaccharides, protein, phenolic compounds and aliphatic compounds (probably originating from cuticular components), and the solubilization rate was attained 64-74% by heating at 120-200 degrees C. The higher heating value (HHV) of alkali-soluble fraction attained 20.1 MJ/kg, indicating its usability as black-liquor-like biofuel. Successive cellulolytic enzymatic hydrolysis mainly converted cellulose into glucose and attained the maximum solubilization rate of 89%. Final residue was predominantly composed of aliphatic cuticular components with high proportion in 9,10,18-trihydroxyoctadecanoic acid (30.1-48.6%). These cuticular components are potential alternative feedstock for aliphatic compounds commonly found in oil plants. (C) 2013 Elsevier Ltd. All rights reserved.
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