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Subject: search.filters.subject.Xyloglucan-chitosan film

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    Development of intelligent packaging from xyloglucan-chitosan modified film with betalains from dragon fruit (Hylocereus undatus) peels
    (2025-06-01)
    Permana, Lasuardi
    ;
    Sriprom, Pongsert
    ;
    Narkrugsa, Woatthichai
    ;
    Manamoongmongkol, Kanjana
    ;
    Assawasaengrat, Pornsawan
    This study aimed to develop intelligent packaging films by, incorporating extracted betalain (EB) from dragon fruit peel into a tamarind seed kernel xyloglucan and chitosan blend (XC). The film were comprehensively characterized for their chemical, physical, mechanical, antimicrobial, and functional properties. Zeta potential and Fourier transform infrared (FTIR) spectroscopy confirmed that the interaction between xyloglucan, chitosan, and betalain were governed by ionic interactions and hydrogen bonding, which stabilized the colloidal network and influenced film microstructure. Increasing betalain concentration enhance film thickness and color intensity with scanning electron microscopy (SEM) revealing uniform surface morphology. Mechanical testing demonstrated that film with a 1:5 (w/v) EB:EC ratio achieved optimal performance balancing tensile strength (22.35 ± 2.25 MPa) and an elongation at break (185.07 ± 4.42 %). The films exhibited suitable barrier properties, with water vapor transmission rate (WVTR) and water vapor peameability (WVP) aligning with food packaging requirements. Antimicrobial assay revealed good activity against Escherichia coli and Staphylococcus aureus, while ammonia sensitivity test demonstrated the ability of film to detect spoilage via visible colorimetric shifts, correlating with total volatile base nitrogen (TVB-N) levels in shrimp. This study highlight the potential of XC-EB films as sustainable, intelligent packaging solutions for monitoring the protein-rich food freshness, leveraging agricultural byproduct to enhance food safety and reduce waste.
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    Synthesis of Epoxidized Waste Cooking Oil as Plasticizer in the Production of Xyloglucan-Chitosan Films
    (2025-01-01)
    Assawasaengrat, Pornsawan
    ;
    Kikaew, Kuntida
    ;
    Wanliphakha, Warintorn
    ;
    Orachorn, Wimolpan
    ;
    Chokelarb, Wasan
    The synthesis of epoxidized waste cooking oil (EWCO) from used oil and the potential of using EWCO as a plasticizer to replace glycerol in xyloglucan-chitosan film were studied. The epoxidation reaction generated an epoxy group, which was induced to break off and form OH groups, potentially used as EWCO plasticizers (EWCOP). The determination of EWCOP by analyzing the chemical structure using FT-IR, where peaks were observed at 3496 cm<sup>-1</sup> and 827 cm<sup>-1</sup>, indicating the opening of the epoxy group. According to the physical properties test, EWCOP has a total acid number of 9.91 mg KOH/g, a flash point below 50 °C, and a viscosity of 0.79 cST at 40 °C. A xyloglucan-chitosan film was prepared using a concentration ratio of xyloglucan to chitosan of 4:1, mixed with a solution of glycerol and EWCOP as the plasticizer at ratios of 7:0, 5:2, 3:4, and 0:7, representing 35% of the total weight of solids. The tensile strength of the xyloglucan-chitosan film increases with a decrease in the glycerol : EWCOP ratio, offering hope for the potential of EWCOP in future applications. Conversely, an increase in the glycerol: EWCOP ratio reduces the elongation of the xyloglucan-chitosan film. The water vapor transfer rate and T<inf>g</inf> in the xyloglucan-chitosan film are lowest when the glycerol: EWCOP ratio is 3:4 and 0:7, respectively. The results showed that using EWCOP as plasticizers to replace glycerol significantly enhanced many aspects of synthesized xyloglucan-chitosan film properties, demonstrating the potential of this research to make a substantial impact in the field.
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    Preparation, characterization, and antimicrobial activity of xyloglucan-chitosan film from tamarind (tamarind indica L.) seed kernel
    (2023-06-01)
    Adair, Pornpatu
    ;
    Sriprom, Pongsert
    ;
    Narkrugsa, Woatthichai
    ;
    Phumjan, Lamphung
    ;
    Manamoongmongkol, Kanjana
    Xyloglucan from tamarind seed kernel powder and chitosan were prepared using acetic acid as an oxidizing agent to form a xyloglucan-chitosan film. This study evaluated the properties of xyloglucan-chitosan films with different loading ratios of xyloglucan using various analytical tools. The covalent bonds formed by the oxidized xyloglucan and chitosan were confirmed by FTIR analysis. Morphological analysis using SEM indicated the formation of a conventional covalent bond in the xyloglucan-chitosan film. The water vapor transmission rate in the xyloglucan-chitosan film was reduced significantly with increasing xyloglucan ratio. Conversely, the increase in the xyloglucan ratio improved the film's mechanical properties (tensile strength = 1.84 ± 0.06<sup>a</sup> MPa, elongation at break = 22.47 ± 0.65<sup>a</sup> %). Furthermore, due to the antimicrobial activity of chitosan, the xyloglucan-chitosan film exhibits intense antimicrobial activity. Therefore, the xyloglucan-chitosan film demonstrated good properties for biodegradable food packaging.