Optimization of alkaline pretreatment conditions for enhancing glucose yield of rice straw by response surface methodology
Optimization of alkaline pretreatment conditions for enhancing glucose yield of rice straw by response surface methodology
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DOI：
10.1016/j.biombioe.2012.08.024
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发表时间：
2012-11-01
影响因子：
6
通讯作者：
Han, Jong-In
中科院分区：
文献类型：
--
作者：
Kim, Ilgook;Han, Jong-In
采用响应面法（RSM）对稻草碱预处理工艺条件进行优化，得到最佳的碱预处理条件为：NaOH浓度1.0-4.0%，反应温度60-100 ℃，预处理时间30-90 min。在2.96%、81.79 ℃和56.66 min的理想预处理条件下，获得了254.5 +/- 1.2 g kg（-1）生物量的最大葡萄糖产量。ANOVA检验显示，该模型和所有独立参数在95%置信水平下被认为具有统计学显著性。此外，我们还探讨了超声波在碱预处理中的作用。在高功率下用NaOH和超声两者处理的样品显示出比在80 ° C下用NaOH处理的样品略高的消化率产率，但差异不显著。(C)2012爱思唯尔有限公司保留所有权利。
Response surface methodology (RSM) was employed to optimize alkaline pretreatment condition for maximum glucose yield of rice straw with respect to NaOH concentration (1.0-4.0%), reaction temperature (60-100 degrees C) and pretreatment time (30-90 min). The maximum glucose yield of 254.5 +/- 1.2 g kg(-1) biomass was obtained at the desirable pretreatment condition of 2.96%, 81.79 degrees C and 56.66 min. The ANOVA test revealed that the model and all independent parameters were considered statistically significant at 95% confidence level. Furthermore, we tried to explore the effect of ultrasonication on alkaline pretreatment. The sample treated with both NaOH and ultrasound at high power showed a slightly higher digestibility yield than the sample with NaOH at 80 degrees C, but the difference was not significant. (C) 2012 Elsevier Ltd. All rights reserved.