Selective fractionation of Sugar Beet Pulp for release of fermentation and chemical feedstocks; optimisation of thermo-chemical pre-treatment
Selective fractionation of Sugar Beet Pulp for release of fermentation and chemical feedstocks; optimisation of thermo-chemical pre-treatment
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DOI：
10.1016/j.biortech.2016.02.131
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发表时间：
2016-06-01
影响因子：
11.4
通讯作者：
Leak, D. J.
中科院分区：
文献类型：
--
作者：
Hamley-Bennett, C.;Lye, G. J.;Leak, D. J.
使用实验设计方法评估了时间和压力对使用蒸汽预处理对未加工的甜菜浆选择性提取甜菜果胶的影响。该过程在相对较低的压力和较长的时间（5 巴，24 分钟）下实现了果胶低聚物的最高溶解度，同时使大部分纤维素部分保持完整。这种蒸汽预处理方法符合甜菜生物精炼厂的概念，因为它可以利用现有废物流，而不需要任何进一步的物理处理，例如研磨或用水稀释。残留的纤维素部分富含纤维素，经酶消化后可被酵母有效发酵为乙醇，每克葡萄糖产生0.48克乙醇。 (C) 2016 Elsevier Ltd. 保留所有权利。
The effect of time and pressure on the selective extraction of sugar beet pectin using steam pre-treatment on unprocessed Sugar Beet Pulp was evaluated using a design of experiments approach. This process gave the highest solubilisation of pectin oligomers at a relatively low pressure and longer time (5 Bar, 24 min), whilst leaving the majority of the cellulose fraction intact. This method of steam pre-treatment fits into the concept of a sugar beet biorefinery as it valorises an existing waste stream without requiring any further physical processing such as milling or dilution with water. The residual cellulose fraction was enriched in cellulose and could be effectively fermented into ethanol by yeast after enzymatic digestion, producing 0.48 g ethanol per gram of glucose. (C) 2016 Elsevier Ltd. All rights reserved.