Highly transparent and antimicrobial PVA based bionanocomposites reinforced by ginger nanofiber. (January 2020)

• Record Type: Journal Article
• Authors: Abral, Hairul; Ariksa, Jeri; Mahardika, Melbi; Handayani, Dian; Aminah, Ibtisamatul; Sandrawati, Neny; Sapuan, S.M.; Ilyas, R.A.
• Is Part Of: Polymer testing. Volume 81(2020)
• Publication Date: 2020-01
• Subjects: Ginger nanofiber -- Antimicrobial -- Bionanocomposites -- PVA film -- Ultrasonication; Polymers -- Testing -- Periodicals; Polymères -- Tests -- Périodiques; 620.1920287
• DOI: 10.1016/j.polymertesting.2019.106186
• Languages: English
• ISSNs: 0142-9418

Abstract

Abstract: Good transparency, antimicrobial, physical, and tensile properties of the biodegradable film can be necessary for food packaging. The aim of this study is to characterize these properties of the poly(vinyl alcohol) (PVA)/ginger nanofiber (GF) bionanocomposite film. This nanofiber of 0.21, 0.31 and 0.41 g in suspensions, was mixed with PVA gel using ultrasonication. After addition of ginger nanofibers, the bionanocomposite film shows antibacterial activity but does not have antifungi activity. Increasing the nanofiber into PVA increases significantly in tensile properties, water vapour impermeability, and moisture resistance. Tensile strength, the temperature at maximum film decomposition, and moisture resistance (after 8 h) of the 0.41 g ginger nanofiber reinforced film were 44.2 MPa (increased by 65.6%), 349.4 °C (increased by 7%), and 6.1% (decreased by 18.7%), respectively compared to pure PVA. With this nanofiber loading, the transparency of the bionanocomposite film decreased slightly. These results suggest this bionanocomposite film has potential in food packaging in industrial applications. Highlights: Drying of the nano-sized fiber suspension resulted in a transparent film. Ginger nanofibers with good microbial activity were mixed with PVA. PVA/ginger bionanocomposite had microbial activity and better performance than PVA. This bionanocomposite has an alternative potential material for food packaging.