کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
7073809 | 1459947 | 2015 | 5 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Separation and purification of hemicellulose-derived saccharides from wood hydrolysate by combined process
ترجمه فارسی عنوان
جداسازی و پاکسازی ساکارید های حاصل از همی سلولز از هیدرولیزات چوب با روش ترکیبی
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کلمات کلیدی
همی سلولوز، هیدرولیز، لیگنین، پاکسازی، ساخارید،
موضوعات مرتبط
مهندسی و علوم پایه
مهندسی شیمی
تکنولوژی و شیمی فرآیندی
چکیده انگلیسی
Prehydrolysis of wood biomass prior to kraft cooking provides a stream containing hemicellulose-derived saccharides (HDSs) but also undesired non-saccharide compounds (NSCs) that were resulted from lignin depolymerization and carbohydrate degradation. In this study, a combined process consisting of lime treatment, resin adsorption, and gel filtration was developed to separate HDSs from NSCs. The macro-lignin impurities that accounted for 32.2% of NSCs were removed by lime treatment at 1.2% dosage with negligible HDSs loss. The majority of NSCs, lignin-derived phenolics, were eliminated by mixed bed ion exchange resin, elevating NSCs removal to 94.0%. The remaining NSCs, furfural and hydroxymethylfurfural, were excluded from HDSs by gel filtration. Chemical composition analysis showed that xylooligosaccharides (XOS) with the degree of depolymerization from 2 to 6 accounted for 28% of the total purified HDSs.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Bioresource Technology - Volume 196, November 2015, Pages 426-430
Journal: Bioresource Technology - Volume 196, November 2015, Pages 426-430
نویسندگان
Xiaojun Wang, Jingshun Zhuang, Jungang Jiang, Yingjuan Fu, Menghua Qin, Zhaojiang Wang,