Enhanced mechanical strength of vortex fluidic mediated biomass-based biodegradable films composed from agar, alginate and kombucha cellulose hydrolysates

Shan He; Yixiao Wu; Yang Zhang; Xuan Luo; Christopher T Gibson; Jingrong Gao; Matt Jellicoe; Hao Wang; David J Young; Colin L Raston

doi:10.1016/j.ijbiomac.2023.127076

Enhanced mechanical strength of vortex fluidic mediated biomass-based biodegradable films composed from agar, alginate and kombucha cellulose hydrolysates

Int J Biol Macromol. 2023 Dec 31;253(Pt 7):127076. doi: 10.1016/j.ijbiomac.2023.127076. Epub 2023 Sep 26.

Authors

Shan He¹, Yixiao Wu², Yang Zhang³, Xuan Luo⁴, Christopher T Gibson⁵, Jingrong Gao⁶, Matt Jellicoe⁷, Hao Wang⁸, David J Young⁹, Colin L Raston¹⁰

Affiliations

¹ School of Food and Pharmacy, Zhejiang Ocean University, Zhoushan City, China; College of Engineering, IT & Environment, Charles Darwin University, Casuarina, NT, Australia; Flinders Institute for Nanoscale and Technology, College of Science and Engineering, Flinders University, Bedford Park, SA, Australia; College of Science and Engineering, Flinders University, Bedford Park, South Australia, Australia.
² College of Engineering, IT & Environment, Charles Darwin University, Casuarina, NT, Australia.
³ School of Food and Pharmacy, Zhejiang Ocean University, Zhoushan City, China.
⁴ Flinders Institute for Nanoscale and Technology, College of Science and Engineering, Flinders University, Bedford Park, SA, Australia; College of Science and Engineering, Flinders University, Bedford Park, South Australia, Australia.
⁵ College of Science and Engineering, Flinders University, Bedford Park, South Australia, Australia.
⁶ School of Food and Pharmacy, Zhejiang Ocean University, Zhoushan City, China; Flinders Institute for Nanoscale and Technology, College of Science and Engineering, Flinders University, Bedford Park, SA, Australia; College of Science and Engineering, Flinders University, Bedford Park, South Australia, Australia.
⁷ Institute of Process Research & Development, School of Chemistry and School of Chemical and Process Engineering, University of Leeds, Woodhouse Lane, Leeds LS2 9JT, UK.
⁸ College of Engineering, IT & Environment, Charles Darwin University, Casuarina, NT, Australia. Electronic address: Hao.Wang@cdu.edu.au.
⁹ College of Engineering, IT & Environment, Charles Darwin University, Casuarina, NT, Australia. Electronic address: David.Young@cdu.edu.au.
¹⁰ Flinders Institute for Nanoscale and Technology, College of Science and Engineering, Flinders University, Bedford Park, SA, Australia; College of Science and Engineering, Flinders University, Bedford Park, South Australia, Australia. Electronic address: colin.raston@flinders.edu.au.

PMID: 37769780
DOI: 10.1016/j.ijbiomac.2023.127076

Abstract

Biodegradable, biomass derived kombucha cellulose films with increased mechanical strength from 9.98 MPa to 18.18 MPa were prepared by vortex fluidic device (VFD) processing. VFD processing not only reduced the particle size of kombucha cellulose from approximate 2 μm to 1 μm, but also reshaped its structure from irregular to round. The increased mechanical strength of these polysaccharide-derived films is the result of intensive micromixing and high shear stress of a liquid thin film in a VFD. This arises from the incorporation at the micro-structural level of uniform, unidirectional strings of kombucha cellulose hydrolysates, which resulted from the topological fluid flow in the VFD. The biodegradability of the VFD generated polymer films was not compromised relative to traditionally generated films. Both films were biodegraded within 5 days.

Keywords: Biodegradability; Biodegradable film; Kombucha cellulose hydrolysates; Mechanical strength; Vortex fluidic device (VFD).

MeSH terms

Agar / chemistry
Alginates*
Biomass
Cellulose* / chemistry
Physical Phenomena

Substances

Agar
Cellulose
Alginates