Study on the green extraction of corncob xylan by deep eutectic solvent
作者机构：School of Biological EngineeringNational Engineering Research Center of Wheat and Corn Further ProcessingZhengzhou 450001China
出 版 物：《Grain & Oil Science and Technology》 (粮油科技（英文版）)
年 卷 期：2024年第7卷第1期
页 面：50-59页
核心收录：
学科分类：0832[工学-食品科学与工程（可授工学、农学学位）] 08[工学] 083202[工学-粮食、油脂及植物蛋白工程]
基 金：This work was supported by the National Natural Science Foundation of China Natural Science Foundation of Henan Key Research and Development Projects of Henan Province Program for Science&Technology Innovation Talents in Universities of Henan Province[20HASTIT034] Henan Province“Double First-Class”Project-Food Science and Technology
主 题：Corncob Deep eutectic solvent Xylan Process optimization Extraction
摘 要：Corn as one of the world s major food crops,its by-product corn cob is also rich in ***,the unreasonable utilization of corn cob often causes the environmental pollution,waste of resources and other *** one of the most abundant polymers in nature,xylan is widely used in food,medicine,materials and other *** cob is rich in xylan,which is an ideal raw material for extracting ***,the intractable lignin is covalently linked to xylan,which increases the difficulty of xylan *** has been reported that the deep eutectic solvent(DES)could preferentially dissolve lignin in biomass,thereby dissolving the ***,the xylan in the extract was separated by ethanol precipitation *** xylan precipitate was obtained after centrifugation,while the supernatant was *** components of the supernatant after ethanol precipitation were separated by the rotary *** ethanol,water and DES were collected for the subsequent extraction of corn cob *** this study,a novel way was provided for the green production of corn cob *** DES was used to extract xylan from corn cob which was used as the raw *** effects of solid-liquid ratio,reaction time,reaction temperature and water content of DES on the extraction rate of corn cob xylan were investigated by the single factor ***,the orthogonal test was designed to optimize the xylan extraction *** structure of corn cob xylan was analyzed and *** results showed that the optimum extraction conditions of corn cob xylan were as follows:the ratio of corn cob to DES was 1:15(g:mL),the extraction time was 3 h,the extraction temperature was 60℃,and the water content of DES was 70%.Under these conditions,the extraction rate of xylan was 16.46%.The extracted corn cob xylan was distinctive triple helix of polysaccharide,which was similar to the structure of commercially available *** was effectively and workably extracted from corn
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