view in publisher's site

Green and chemical-free process of enzymatic xylooligosaccharide production from corncob: Enhancement of the yields using a strategy of lignocellulosic destructuration by ultra-high pressure pretreatment

Highlights•UHP enhances lignocellulosic destructuration and enzymatic hydrolysis of corncob.•UHP caused significant differences in XOS yields between native and pretreated corncob.•UHP at 100 MPa significantly improved the accessibility of endo-xylanase.•UHP pretreatment at 100 MPa relatively did not affect composition of corncob.AbstractIn this study, the pressures at 50–500 MPa were evaluated at different time to pretreat and further enzyme hydrolysis. The ultra-high pressure (UHP) pretreatment at 100 MPa for 10 min led to improved accessibility of enzyme for conversion of xylan to xylooligosaccharide (XOS). The maximum XOS yield of 35.6 mg/g substrate was achieved and firstly reported at 10% (w/v) of substrate, 100 U of endo-xylanase/g corncobs and incubation time of 18 h. The enzymatic hydrolysis efficiency was increased by 180.3% and released a high amount of xylobiose. The UHP pretreatment relatively did not affect to the composition of corncob, but decreased 34.3% of lignin. Interestingly, antioxidant activities of XOS using UHP pretreatment were higher than untreated corncob. The UHP pretreatment improved lignocellulosic destructuration and XOS yields in a shorter time without the need of chemicals, implying that UHP could be an effective pretreatment of biomass with a chemical-free process.Graphical abstractDownload : Download high-res image (281KB)Download : Download full-size image

فرآیند سبز و عاری از مواد شیمیایی تولید زایلوالیگوساکارید آنزیمی از چوب ذرت: تقویت بازده با استفاده از استراتژی ساخت زدایی لیگنوسلولزی با پیش تصفیه با فشار بسیار بالا

ترجمه شده با

Download PDF سفارش ترجمه این مقاله این مقاله را خودتان با کمک ترجمه کنید
سفارش ترجمه مقاله و کتاب - شروع کنید

با استفاده از افزونه دانلود فایرفاکس چکیده مقالات به صورت خودکار تشخیص داده شده و دکمه دانلود فری‌پیپر در صفحه چکیده نمایش داده می شود.