Okara Cellulose Nanofibrils Produced by Pretreatment with Sustainable Deep Eutectic Solvent Coupled with Various Mechanical Treatments  

作　　者：Peiyi Li Haozhe Lei Boxing Jian Ruiyan Liu Miaomiao Zhou Yumeng Wang Hezhen Liu Yun Wang Bingyao Zhou 

机构地区：[1]College of Bioresources Chemical and Materials Engineering,National Demonstration Center for Experimental Light Chemistry Engineering Education,Shaanxi University of Science and Technology,Xi'an,Shaanxi Province,710021,China [2]Key Laboratory of Paper Based Functional Materials of China National Light Industry,Xi'an,Shaanxi Province,710021,China [3]Shaanxi Provincial Key Laboratory of Papermaking Technology and Specialty Paper Development,Xi'an,Shaanxi Province,710021,China [4]Department of Chemical and Paper Engineering,College of Engineering and Applied Science,Western Michigan University,4651 Campus Dr,Kalamazoo,Michigan,49008,US

出　　处：《Paper And Biomaterials》2022年第2期46-55,共10页造纸与生物质材料（英文）

基　　金：This research was funded by the Key Laboratory Research Open Fund of Shaanxi Provincial Department of Education(Grant No.17JS017);the Research Initial Fund of Shaanxi University of Science and Technology(Grant No.BJ15-29).

摘　　要：In this study,a green,environmentally friendly method for rapid cellulose nanofribril(CNF)preparation with a significant cost advantage was developed.Pretreatment with a deep eutectic solvent(DES)synthesized from oxalic acid dihydrate and choline chloride(ChCl-O)was combined with various mechanical treatment methods to produce okara CNFs from agricultural waste,with different diameter distributions.The results showed that high-speed stirring produced CNFs with an average diameter of 27 nm.This method was advantageous because it consumed about 94%less energy than traditional high-pressure homogenization method.The DES recovery rate was more than 90%,and DES served as a highly effective treatment,indicating that DES pretreatment is an economical,convenient,and effective strategy for okara CNF preparation.

关 键 词：OKARA deep eutectic solvent(DES) cellulose nanofibril(CNF) high-speed stirring high-pressure homogenization recovery 

分 类 号：TQ342[化学工程—化纤工业] TB383.1[一般工业技术—材料科学与工程] TS210.9[轻工技术与工程—粮食、油脂及植物蛋白工程]