Insight into the effect of different nanocellulose types on protein-based bionanocomposite film properties

Qingyu Qin; Xinyan Zhang; Bing Gao; Wenying Liu; Lujia Han; Swee Leong Sing; Xian Liu

doi:10.1016/j.ijbiomac.2023.127944

Insight into the effect of different nanocellulose types on protein-based bionanocomposite film properties

Int J Biol Macromol. 2024 Feb;257(Pt 1):127944. doi: 10.1016/j.ijbiomac.2023.127944. Epub 2023 Nov 10.

Authors

Qingyu Qin¹, Xinyan Zhang², Bing Gao³, Wenying Liu⁴, Lujia Han⁵, Swee Leong Sing⁶, Xian Liu⁷

Affiliations

¹ Laboratory of Biomass and Bioprocessing Engineering, College of Engineering, China Agricultural University, Beijing 100083, China; Department of Mechanical Engineering, College of Design and Engineering, National University of Singapore, Singapore. Electronic address: qingyuqin@126.com.
² National Engineering Laboratory for Reducing Emissions from Coal Combustion, School of Energy and Power Engineering, Shandong University, Jinan, Shandong 250061, China. Electronic address: sddxzxy2020@sdu.edu.cn.
³ Laboratory of Biomass and Bioprocessing Engineering, College of Engineering, China Agricultural University, Beijing 100083, China. Electronic address: gaobing@cau.edu.cn.
⁴ Laboratory of Biomass and Bioprocessing Engineering, College of Engineering, China Agricultural University, Beijing 100083, China.
⁵ Laboratory of Biomass and Bioprocessing Engineering, College of Engineering, China Agricultural University, Beijing 100083, China. Electronic address: hanlj@cau.edu.cn.
⁶ Department of Mechanical Engineering, College of Design and Engineering, National University of Singapore, Singapore. Electronic address: sweeleong.sing@nus.edu.sg.
⁷ Laboratory of Biomass and Bioprocessing Engineering, College of Engineering, China Agricultural University, Beijing 100083, China. Electronic address: lx@cau.edu.cn.

PMID: 37951448
DOI: 10.1016/j.ijbiomac.2023.127944

Abstract

This paper investigates the effect of five different types of nanocellulose on the properties of protein-based bionanocomposite films (PBBFs) and the mechanism of action. The results show that TEMPO-oxidized nanocellulose (TNC) PBBFs have the smoothest surface structure. This is because some hydroxyl groups in TNC are converted to carboxyl groups, increasing hydrogen bonding and cross-linking with proteins. Bacterial nanocellulose (BNC) PBBFs have the highest crystallinity. Filamentous BNC can form an interlocking network with protein, promoting effective stress transfer in the PBBFs with maximum tensile strength. The PBBFs of lignin nanocellulose (LNC) have superior elasticity due to the presence of lignin, which gives them the greatest creep properties. The PBBFs of cellulose nanocrystals (CNCs) have the largest water contact angle. This is because the small particle size of CNC can be uniformly distributed in the protein matrix. The different types of nanocellulose differ in their microscopic morphology and the number of hydroxyl groups and hydrogen bonding sites on their surfaces. Therefore, there are differences in the spatial distribution and the degree of intermolecular cross-linking of different types of nanocellulose in the protein matrix. This is the main reason for the differences in the material properties of PBBFs.

Keywords: Capsicum leaf protein; Composite films; Nanocellulose; Solution casting method; Variance analysis.

MeSH terms

Cellulose / chemistry
Lignin
Nanocomposites* / chemistry
Nanoparticles* / chemistry
Water / chemistry

Substances

Lignin
Water
Cellulose