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Published in: Cellulose 5/2020

03-01-2020 | Original Research

Preparation of cellulose nanofibrils from okara by high pressure homogenization method using deep eutectic solvents

Authors: Peiyi Li, Yumeng Wang, Qingqing Hou, Hezhen Liu, Haozhe Lei, Boxing Jian, Xinping Li

Published in: Cellulose | Issue 5/2020

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Abstract

The interest in the application of deep eutectic solvents (DES) as a green solvent has increased rapidly. The application of DES in agro-industrial okara treatment can be developed into industrialization. In order to simplify the degreasing, deproteinization and cellulose extraction steps in the process of pretreating okara cellulose, a new approach to cellulose extraction from okara via one-pot DES treatment is established. Three different complexing agents, choline salts in oxalic acid, in glycerol and in urea are studied in this work. The structure and properties of cellulose nanofibers (CNFs) prepared by high pressure homogenization following pretreatment of okara with anionic systhesized DES are investigated. The effects of different systems on the degree of microfibrillation of okara are analyzed using techniques such as SEM, FTIR, TD and DTG. The results indicate that by pretreating okara with choline chloride–oxalic acid type solvent, CNFs with average diameter of 27 nm are obtained using high pressure homogenization.

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Literature
Metadata
Title
Preparation of cellulose nanofibrils from okara by high pressure homogenization method using deep eutectic solvents
Authors
Peiyi Li
Yumeng Wang
Qingqing Hou
Hezhen Liu
Haozhe Lei
Boxing Jian
Xinping Li
Publication date
03-01-2020
Publisher
Springer Netherlands
Published in
Cellulose / Issue 5/2020
Print ISSN: 0969-0239
Electronic ISSN: 1572-882X
DOI
https://doi.org/10.1007/s10570-019-02929-5

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