Chitosan-Coated Bacterial Cellulose (BC)/Hydrolyzed Collagen Films and Their Ascorbic Acid Loading/Releasing Performance: A Utilization of BC Waste from Kombucha Tea Fermentation

Chitosan-Coated Bacterial Cellulose (BC)/Hydrolyzed Collagen Films and Their Ascorbic Acid Loading/Releasing Performance: A Utilization of BC Waste from Kombucha Tea Fermentation

SCOBY bacterial cellulose (BC) is a biological macromolecule (considered as a by-product) that grows at the liquid–air interface during kombucha tea fermentation. In this study, BC:HC (hydrolyzed collagen) blend films coated with 1 wt% chitosan (CS) were loaded with ascorbic acid to study loading/re...

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Bibliographic Details
Published in:Polymers Vol. 14; no. 21; p. 4544
Main Authors: Yakaew, Pantitra, Phetchara, Thapani, Kampeerapappun, Piyaporn, Srikulkit, Kawee
Format: Journal Article
Language:English
Published: Basel MDPI AG 26-10-2022
MDPI
Subjects:
Acids
antibacterial activity
Antimicrobial agents
Ascorbic acid
ascorbic acid loading and release
Bacteria
Bonding strength
Cellulose
Chitosan
chitosan coating
Coatings
Collagen
Efficiency
Fermentation
Fourier transforms
Gram-positive bacteria
Hydrogels
Hydrogen
Hydrogen bonding
Laboratories
Mechanical properties
Miscibility
Polymers
Releasing
Scanning electron microscopy
SCOBY bacterial cellulose/hydrolyzed collagen film
Tissue engineering
Vitamin C
Thailand
United States > US
Japan
India
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Summary:SCOBY bacterial cellulose (BC) is a biological macromolecule (considered as a by-product) that grows at the liquid–air interface during kombucha tea fermentation. In this study, BC:HC (hydrolyzed collagen) blend films coated with 1 wt% chitosan (CS) were loaded with ascorbic acid to study loading/releasing performance. At first, the mechanical properties of the blend films were found to be dependent on HC ratio. After chitosan coating, the coated films were stronger due to intermolecular hydrogen bonding interaction and the miscibility of two matrixes at the interface. The antibacterial activity test according to the AATCC Test Method revealed that chitosan-coated BC/HC films exhibited excellent antimicrobial activity against S.aureus growth from the underneath and the above film when compared to BC and BC:HC films. Moreover, chitosan was attractive to ascorbic acid during drug loading. Consequently, its releasing performance was very poor. For BC:HC blend films, ascorbic acid loading/releasing performance was balanced by water swellability, which was controlled using blending formulation and coating. Another advantage of BC films and BC:HC blend films was that they were able to maintain active ascorbic acid for a long period of time, probably due to the presence of plenty of BC hemiacetal reducing ends (protective group).
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ISSN:2073-4360
2073-4360
DOI:10.3390/polym14214544