期刊
BIORESOURCE TECHNOLOGY
卷 211, 期 -, 页码 636-644出版社
ELSEVIER SCI LTD
DOI: 10.1016/j.biortech.2016.03.153
关键词
Vine shoots; Autohydrolysis; Hemicelluloses; Oligosaccharides; Biorefinery
资金
- Agriculture, Fishing and Food Department of the Basque Government
- University of the Basque Country [PIF 13/050]
- Spanish Ministry of Economy and Competitivity [FPDI-2013-18748]
Vine shoots were subjected to non-isothermal aqueous processing. A range of severities (S-0) from 3.20 to 4.65 was assayed and their effects in terms of solubilization, composition, molar mass distribution, structural characterization and thermal stability of the liquors were studied using HPLC, HPSEC, TGA and FTIR. The spent solids were characterized by HPLC and FTIR. When autohydrolysis was carried out at S-0 = 4.01, the substrate solubilization achieved a 38.7% of the raw material and 83.1% of the initial xylan was converted into xylooligosaccharides (XOS). The amount of TOS (total oligosaccharides) in the hydrolysates was 28.4 g/L while the other non volatile compounds (ONVC) were 0.08 g/g NVC. The spent solid from the treatment at S-0 = 4.01 was composed about 90% of cellulose and lignin. Therefore, it can be concluded that autohydrolysis is a suitable pretreatment of vine shoots such as a first stage of a biomass refinery. (C) 2016 Elsevier Ltd. All rights reserved.
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