期刊论文详细信息
Chemical and biochemical engineering quarterly
Refining Hemp Hurds into Fermentable Sugars or Ethanol
J. M. Oliva1  I. Ballesteros1  M. Ballesteros1  K. Réczey1  Z. Barta1  D. Dienes1 
关键词: Hemp hurds;    steam pretreatment;    enzymatic hydrolysis;    SSF;    ethanol production;   
DOI  :  
来源: Croatian Society of Chemical Engineers
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【 摘 要 】

Abstract Steam pretreatment is one of the most efficient pretreatment technologies employed prior to enzymatic hydrolysis of lignocellulosics to obtain high polysaccharide conversion. In this study, steam pretreatment of non-impregnated hemp hurds was investigated at two reactor scales (2 and 10 L) by varying the temperature from 200–230 °C. Glucan recoveries were relatively high (> 82 % of original content), while xylan recoveries ranged from 18–66 % of original. Conversions of glucan and xylan in enzymatic hydrolysis varied between X = 62–83 % and 46–96 %, respectively, based on glucan and xylan contents of the substrate. Ethanol yields in simultaneous saccharification and fermentation ranged from Y = 38–70 %, based on glucan and mannan contents of the substrate. The highest overall glucose yield was 336 g kg–1 dry hurds obtained at 210 °C, whereas the maximum sugar yield (glucose + xylose), 414 g kg–1 dry hurds, was achieved at 200 °C. The highest ethanol yield, 141 g kg–1 dry hurds, was obtained at 210 °C.

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