Preparation and characterization of PH-responsive polyvinyl alcohol/chitosan/anthocyanin films
نویسندگان
چکیده
Anthocyanin/polyvinyl alcohol/chitosan composite membrane was prepared by solution casting method using chitosan (CS) and polyvinyl alcohol (PVA) as matrix natural pigment anthocyanin filler. The structures of the films were characterized Uv-visible reflectance spectrum (UV-VIS), Fourier infrared spectroscopy (FT-IR) scanning electron microscopy (SEM). effects adding anthocyanins on physical properties, water resistance, degradation, antibacterial properties pH responsiveness investigated. experimental results showed that anthocyanin/polyvinyl indicator show color changes from pink to purple blue then yellow-green when value ranges 2 14. total difference ΔE is greater than 12. other film can enhance anthocyanin. tensile strength more 70 MPa, which larger alcohol/chitosanfilm. has excellent physical, obvious response performance, making it ideal for food packaging.
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ژورنال
عنوان ژورنال: Food Science and Technology
سال: 2023
ISSN: ['2331-513X', '2331-5156']
DOI: https://doi.org/10.1590/fst.98022