Total fractionation of green tea residue by microwave-assisted alkaline pretreatment and enzymatic hydrolysis

Shuntaro Tsubaki, Jun ichi Azuma

研究成果: ジャーナルへの寄稿学術誌査読

27 被引用数 (Scopus)

抄録

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 °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.

本文言語英語
ページ(範囲)485-491
ページ数7
ジャーナルBioresource Technology
131
DOI
出版ステータス出版済み - 3月 2013
外部発表はい

!!!All Science Journal Classification (ASJC) codes

  • バイオエンジニアリング
  • 環境工学
  • 再生可能エネルギー、持続可能性、環境
  • 廃棄物管理と処理

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