响应面试验优化高温液态水催化木糖制备糠醛的工艺

doi:10.7506/spkx1002-6630-201624006

食品科学 ›› 2016, Vol. 37 ›› Issue (24): 40-46.doi: 10.7506/spkx1002-6630-201624006

响应面试验优化高温液态水催化木糖制备糠醛的工艺

赵玮，周瑾琨，刘婷婷，王大为

吉林农业大学食品科学与工程学院，吉林长春 130118

出版日期:2016-12-25 发布日期:2016-12-21
基金资助:
国家高技术研究发展计划（863计划）项目（2011AA100805）；吉林省科研基金项目（20140520181JH）

Optimization of Preparation of Furfural from Xylose Catalyzed by High Temperature Liquid Water (HTLW) Using Response Surface Methodology

ZHAO Wei, ZHOU Jinkun, LIU Tingting, WANG Dawei

College of Food Science and Engineering, Jilin Agricultural University, Changchun 130118, China

Online:2016-12-25 Published:2016-12-21

摘要/Abstract

摘要： 以木糖溶液为原料，甲苯为萃取剂，通过高温液态水催化木糖脱水制备糠醛。以糠醛收率作为指标，根据Box-Behnken试验设计原理，采用响应面分析法确定最优工艺参数。结果表明，影响糠醛收率的因素主次顺序为：木糖初始质量浓度＞甲苯用量＞反应时间＞反应温度；通过响应面法优化并修正的最佳工艺条件为20 mL木糖溶液、反应温度188 ℃、反应时间6 h、甲苯用量25 mL、木糖初始质量浓度120 g/L，糠醛收率为68.72%，与理论预测值基本一致。对产物进行气相色谱-质谱分析表征，证明产物为糠醛。

关键词: 木糖, 高温液态水, 糠醛, 响应面分析法

Abstract: Furfural was produced from xylose dehydration catalyzed by high temperature liquid water (HTLW) using toluene as extraction solvent. Important process parameters were optimized by Box-Behnken design using response surface methodology. Furfural yield was used as the response variable. It was demonstrated that initial concentration of xylose had the greatest influence on furfural yield, followed sequentially by toluene dosage, reaction time and temperature and that their optimal levels were determined respectively as 120 g/L, 25 mL, 6 h and 188 ℃ when 20 mL of xylose solution was used. The experimentally measured yield of furfural under these conditions was 68.72%, which basically coincided with the predicted value. Gas chromatography-mass spectrometry (GC-MS) analysis confirmed the product as furfural.

Key words: xylose, high temperature liquid water, furfural, response surface methodology

中图分类号:

TQ656.1

赵玮，周瑾琨，刘婷婷，王大为. 响应面试验优化高温液态水催化木糖制备糠醛的工艺[J]. 食品科学, 2016, 37(24): 40-46.

ZHAO Wei, ZHOU Jinkun, LIU Tingting, WANG Dawei. Optimization of Preparation of Furfural from Xylose Catalyzed by High Temperature Liquid Water (HTLW) Using Response Surface Methodology[J]. FOOD SCIENCE, 2016, 37(24): 40-46.

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响应面试验优化高温液态水催化木糖制备糠醛的工艺

Optimization of Preparation of Furfural from Xylose Catalyzed by High Temperature Liquid Water (HTLW) Using Response Surface Methodology

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