Enzymatic Extraction and Characterization of Nanocellulose from Cornhusk Fiber release_vbmbhqxa75csxi7vsvsylq2gxu

by Haiyan Jin, Yinghua Tian, Liqian Teng, Jiaqi Yang, Hongyan Wu, Xiaolan Liu

Released as a post by Research Square Platform LLC.



<jats:title>Abstract</jats:title> Cornhusk is a renewable and abundant crop by-product whose diverse applications must be studied more extensively. However, thus far, cornhusk, as a raw material, has not been employed for production of cornhusk fiber (CF) nanocellulose (CNC). This study aims to extract and characterize nanocellulose using CF as a raw material by high-shear-assisted enzyme hydrolysis. The extraction process was optimized by investigating the particle size distribution. The optimal extraction conditions of CNC were as follows: cellulase concentration of 1 mg/g, pH of 4.8, temperature of 50 ℃, and 24 h treatment under high-shear conditions for 20 min. The morphological characteristics of the CNC and CF were investigated, and FTIR,XRD, and TGA analyses were performed. Compared with CF, CNC exhibited slenderer nanofibrils with a smoother surface. FTIR analysis showed that the peaks that represented hemicellulose, lignin, and pectin disappeared or diminished in the CNC spectrum. The crystal type of CNC did not change and was identical to that of CF (cellulose type I). The TGA results showed that CNC possessed a lower thermal stability and higher char residuals than those of CF.
In application/xml+jats format

Archived Files and Locations

application/pdf  891.8 kB
assets.researchsquare.com (publisher)
web.archive.org (webarchive)
Read Archived PDF
Preserved and Accessible
Type  post
Stage   unknown
Date   2022-08-26
Work Entity
access all versions, variants, and formats of this works (eg, pre-prints)
Catalog Record
Revision: 85757609-6a4f-419d-9c41-8e21a937caee