Optimization of extraction process and properties analysis of soy hull nanocellulose
YANG Lina
YU Kejin
WANG Shengnan
HE Yutang
LIU He
Abstract：Nanocelluloses had attracted much attention because of their large specific surface area,high elastic modulus and biodegradability.In the field of food,nanocelluloses were used for food packaging and biomedicine.In this study,the extraction process of soy hull nanocellulose(SHNC)was optimized by Box-Behnken response surface,and the structure and properties of SHNC were characterized.The optimal extraction process of SHNC was determined by single factor and Box-Behnken response surface method.The structure and properties of SHNC were characterized by Fourier transform infrared spectroscopy,X-ray powder diffraction,scanning electron microscopy and ultraviolet-visible spectrophotometer.The results showed that the optimum extraction parameters were as follows:HCl concentration of 12.28％,acid hydrolysis temperature of 64.58 °℃ and ultrasonic time of 35.10 min.Under these conditions,the average extraction yield of SHNC was 4.11％,which was similar to the predicted value of 4.21％.The average particle size of soy hull nanocellulose is 30 nm,which is dispersed,spherical or short rod-like nanoparticles containing hydroxyl and carboxyl functional groups,and has excellent thermal stability,light transmittance(89.35％)and ultraviolet resistance.This study provides a research idea for high-value utilization of soy hull and preparation of nanocellulose with excellent properties.
Keywords：soy hullnanocelluloseextraction processproperties analysis
Publication Date：2024-09-15
Online Publishing Date：2025-08-15(First online date of this platform, not the publication date of the document)
Pages：11( 173-183 )