Fabrication of cellulose nanowhiskers reinforced chitosan-xylan nanocomposite films with antibacterial and antioxidant activities. (15th March 2018)

• Record Type: Journal Article
• Authors: Bao, Yuping; Zhang, Hao; Luan, Qian; Zheng, Mingming; Tang, Hu; Huang, Fenghong
• Is Part Of: Carbohydrate polymers. Volume 184(2018)
• Page Start: 66
• Page End: 73
• Publication Date: 2018-03-15
• Subjects: Chitosan -- Xylan -- Cellulose nanowhiskers -- Antibacterial -- Antioxidant; Polysaccharides -- Periodicals; Polysaccharides -- Periodicals; Polysaccharides -- Périodiques; Electronic journals; 547.78
• DOI: 10.1016/j.carbpol.2017.12.051
• Languages: English
• ISSNs: 0144-8617

Abstract

Highlights: Chitosan, xylan and cellulose are derived from biomass resources. CNW were used as nanofillers for reinforcing chitosan-xylan films. Antibacterial and antioxidant film with enhanced mechanical property was developed. The nanocomposite films have potential application in food and health-related areas. Abstract: Antibacterial and antioxidant chitosan-xylan/cellulose nanowhiskers (CNW) nanocomposite films were successfully prepared using CNW as nanofillers. The structure and morphology of the nanocomposite films were investigated by Fourier transform infrared spectroscopy (FTIR), X-ray diffractometry (XRD), and scanning electron microscopy (SEM). The optical transmittance, thermal stability, mechanical property, and swelling property of the nanocomposite films were also evaluated. These results revealed the microstructure of the films and confirmed the good miscibility between chitosan-xylan and CNW. The improvements of tensile strength and elongation at break of the nanocomposite films confirmed the reinforcement effects of CNW. Moreover, the inhibitory effects against S . aureus and E . coli and the ABTS + scavenging activity indicated antibacterial and antioxidant functions of the nanocomposite films. In this work, the prepared chitosan-xylan/CNW nanocomposite films, combined the antibacterial property of chitosan, the antioxidant property of xylan, and good mechanical property of CNW, could be potentially applied in food and health-related areas.