Preparation and Property Characterization of Chitosan/Microcrystalline Cellulose Antimicrobial Preservative Films

Dan Ren; Jian Fang; Ping Liu; Xiao Sun; Rui Han Zhang

doi:10.4028/www.scientific.net/AMM.200.416

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HomeApplied Mechanics and MaterialsApplied Mechanics and Materials Vol. 200Preparation and Property Characterization of...

Preparation and Property Characterization of Chitosan/Microcrystalline Cellulose Antimicrobial Preservative Films

Abstract:

The preparation of chitosan (CTS)/microcrystalline cellulose (MCC) antimicrobial preservative film was optimized by Quadratic Rotation Combinative Design. The composite film structure was characterized by FT-IR, SEM and TG. Results showed that the optimum parameters of film formation were when chitosan solution concentration was 1.8g/100ml, MCC addition amount was 4.5g/100ml, and glycerin addition amount was 1.6g/100ml. Under this condition, the TS and elongation (E) at break of the composite film were 16.58 MPa and 17.3% respectively. Under room temperature, cherry tomatoes packed by chitosan/MCC antimicrobial preservative film (CTS-Fh) shrunk partially after 10 days, while placed under natural circumstances almost all cherry tomatoes shrunk after 4 days. Meanwhile, the composite film had excellent antibacterial activity, and the antibacterial rate (AR) for Escherichia coli and Staphylococcus aureus could be as high as 99%. Therefore, the composite film has a promising developmental prospect in the fields of fresh fruits and vegetables antibacterial preservation, biodegradable packaging film and so on.

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Periodical:

Applied Mechanics and Materials (Volume 200)

Pages:

416-422

DOI:

https://doi.org/10.4028/www.scientific.net/AMM.200.416

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Online since:

October 2012

Authors:

Dan Ren, Jian Fang, Ping Liu, Xiao Sun, Rui Han Zhang

Keywords:

Antimicrobial Preservative Films, Chitosan, Microcrystalline Cellulose (MCC), Property Characterization

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