Changes in various physical/chemical parameters of Pinus pinaster wood after steam explosion pretreatment
Changes in various physical/chemical parameters of Pinus pinaster wood after steam explosion pretreatment
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DOI：
10.1016/s0961-9534(03)00017-5
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发表时间：
2003-09
影响因子：
6
通讯作者：
M. Negro;P. Manzanares;J. Oliva;I. Ballesteros;M. Ballesteros
中科院分区：
文献类型：
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作者：
M. Negro;P. Manzanares;J. Oliva;I. Ballesteros;M. Ballesteros
蒸汽爆破法可以作为木质纤维素生物质生产乙醇的预处理。传统上，预处理的有效性是根据半纤维素溶解，纤维素部分的酶可转化性和两种多糖的回收率来评估的。在这项研究中，一些参数不同的组成（主要成分）已被评估作为一种替代工具，以验证蒸汽预处理对木质纤维素材料的影响。研究了蒸汽爆破预处理中最重要的变量（温度、停留时间和碎片尺寸）对松树生物质各种物理/化学参数的影响。在O/C和H/C原子比的变化，颜色分析，元素组成，水滴渗透时间，有机可溶物含量，纤维素结晶指数，和热重分析后的预处理进行了评价。此外，操作的预处理变量对所有这些参数的影响和它们之间的相互作用与耶茨的算法进行了检查。
Steam-explosion process can be satisfactorily used as a pretreatment in ethanol production from lignocellulosic biomass. Traditionally, pretreatment effectiveness is evaluated in terms of hemicellulose solubilization, enzymatic convertibility of cellulose fraction, and recovery of both polysaccharides. In this study some parameters different from composition (main components) have been evaluated as an alternative tool to characterise the effect of steaming pretreatment on lignocellulosic materials. The effect of the most important variables in steam explosion pretreatment (temperature, residence time and chip size) on various physical/chemical parameters of pine biomass were investigated. Changes in O/C and H/C atomic ratios, colour analysis, elementary composition, water drop penetration time, organic soluble content, cellulose cristallinity index, and thermogravimetric analysis after the pretreatment were evaluated. Furthermore the influence of operational pretreatment variables on all such parameters and their interactions were examined with the Yates’ algorithm.