کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
7078995 | 1459987 | 2014 | 8 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Remarkable solvent and extractable lignin effects on enzymatic digestibility of organosolv pretreated hardwood
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
مهندسی شیمی
تکنولوژی و شیمی فرآیندی
پیش نمایش صفحه اول مقاله
![عکس صفحه اول مقاله: Remarkable solvent and extractable lignin effects on enzymatic digestibility of organosolv pretreated hardwood Remarkable solvent and extractable lignin effects on enzymatic digestibility of organosolv pretreated hardwood](/preview/png/7078995.png)
چکیده انگلیسی
Low solvent concentration effect on substrate digestibility of ethanol organosolv pretreated sweetgum was examined. Surprisingly, lower ethanol concentration in organosolv pretreatments resulted in faster initial rates and higher 72Â h hydrolysis yields in pretreated substrates. A strong correlation (r2Â =Â 0.96) between pretreatment combined severity factor and residual xylan/glucan ratio was observed. The residual xylan/glucan ratio was associated with the initial hydrolysis rate closely. Furthermore, it was found that preserving extractable lignin in the pretreated substrates could improve enzymatic hydrolysis yield by 33%. This has an important implication in reducing the pretreatment and enzyme cost, because the typical solvent washing after pretreatment could be eliminated and preserving extractable lignin could reduce enzyme loading. Finally, we observed that xylan removal by xylanase could improve the initial rate by 53% and increase the 72Â h hydrolysis yield by 21%. The extractable lignin precipitation on pretreated substrates increased the 72Â h hydrolysis yield by 10%.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Bioresource Technology - Volume 156, March 2014, Pages 92-99
Journal: Bioresource Technology - Volume 156, March 2014, Pages 92-99
نویسندگان
Chenhuan Lai, Maobing Tu, Mi Li, Shiyuan Yu,