硫酸氢钠一段处理对碱性亚硫酸盐二段处理改善麦秆纤维酶解性能的影响  

The Effect of the Treatment by NaHSO_(4)in the First Stage on the Modification Efficiency of the Fiber Enzyme Hydrolysis Property of Wheat Straw Treated by Alkaline Sulfites in the Second Stage

作　　者：谢齐航 翟睿 Xie Qihang;Zhai Rui(Key Laboratory of Recycling and Eco-treatment of Waste Biomass of Zhejiang Province,Zhejiang University of Science and Technology,Hangzhou,Zhejiang,310023)

机构地区：[1]浙江科技大学,浙江省废弃生物质循环利用与生态处理技术重点实验室,浙江杭州310023

出　　处：《江苏造纸》2024年第3期25-31,共7页

摘　　要：本论文利用硫酸氢钠对麦秆进行一段处理以提高碱性亚硫酸盐二段处理对上述纤维酶解性能的改善效率,利用单因素试验探究最优工艺。结果表明:在硫酸氢钠用量2%、处理温度120℃、处理时间40min(浸渍时间15min、纤维浓度15%)的条件下,硫酸氢钠一段处理效率最佳。和仅经碱性亚硫酸盐处理后纤维的性能相比,经硫酸氢钠和碱性亚硫酸盐两段处理后纤维中有机抽提物、灰分、木质素和木聚糖的含量降低,但酶解葡聚糖含量和葡聚糖转化率增加。In this paper,the NaHSO_(4) aqueous solution was used to treat wheat straw(the first stage)for the modification on the efficiency of the fiber enzyme hydrolysis property of wheat straw treated by alkaline sulfites in the second stage,and the single factor tests were applied to determine the optimal conditions.The results showed that the NaHSO,dosage of 2%,treating temperature of 120 ℃ and treating time of 40 min(soaking time of 15 min,fiber concentration of 15%)were chosen as the optimal conditions.Under above conditions,compared with those of the fibers treated by alkaline sulfites,the contents of organic extract,ash,lignin and xylan in the fibers treated by NaHSO_(4) and alkaline sulfites were decreased;however,the hydrolyzed glucan content and the conversion ratio of glucan were increased.

关 键 词：硫酸氢钠一段处理 碱性亚硫酸盐二段处理 麦秆 纤维酶解性能 

分 类 号：TS2[轻工技术与工程—食品科学与工程]