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  1. Article: Retention of cinnamaldehyde in poly(vinyl alcohol) films intended for preservation of faba beans through vapor-phase antimicrobial effect

    Kardam, Saurabh Kumar / Kadam, Ashish A / Dutt, Dharm

    Food packaging and shelf life. 2021 Sept., v. 29

    2021  

    Abstract: Vapor-phase antimicrobial activity of cinnamaldehyde (CINN) loaded poly(vinyl alcohol) (PVOH) films was assessed against the gram-positive (+ ve) bacterium Bacillus subtilis and the gram-negative (- ve) bacterium Escherichia coli. CINN retention in the ... ...

    Abstract Vapor-phase antimicrobial activity of cinnamaldehyde (CINN) loaded poly(vinyl alcohol) (PVOH) films was assessed against the gram-positive (+ ve) bacterium Bacillus subtilis and the gram-negative (- ve) bacterium Escherichia coli. CINN retention in the film was studied via a facile method based on UV–vis spectroscopy. It was found that merely 5.59 μL CINN/g film retained in the film was sufficient to preserve faba beans pods up to 4 days at 25 °C. At this low concentration of CINN, the properties of the CINN/PVOH films like morphology, mechanical strength, composition, and color largely remained unperturbed. Upon exposure to 55 % RH, the integrity of the antimicrobial CINN/PVOH film was not compromised at the end of 137 days, allowing the film to be used at this condition.
    Keywords Bacillus subtilis ; Escherichia coli ; antimicrobial properties ; bacteria ; color ; shelf life ; strength (mechanics) ; ultraviolet-visible spectroscopy
    Language English
    Dates of publication 2021-09
    Publishing place Elsevier Ltd
    Document type Article
    ISSN 2214-2894
    DOI 10.1016/j.fpsl.2021.100704
    Database NAL-Catalogue (AGRICOLA)

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  2. Article: Ethylene scavenging film based on corn starch-gum acacia impregnated with sepiolite clay and its effect on quality of fresh broccoli florets

    Upadhyay, Aakash / Kumar, Pardeep / Kardam, Saurabh Kumar / Gaikwad, Kirtiraj K.

    Food bioscience. 2022 Apr., v. 46

    2022  

    Abstract: Ethylene scavenging film based on corn starch (CS) and gum acacia (GA) nanocomposite film impregnated with sepiolite (SP) was fabricated by the casting method and characterized. FTIR, TGA, XRD, SEM, mechanical, water vapor barrier, and ethylene ... ...

    Abstract Ethylene scavenging film based on corn starch (CS) and gum acacia (GA) nanocomposite film impregnated with sepiolite (SP) was fabricated by the casting method and characterized. FTIR, TGA, XRD, SEM, mechanical, water vapor barrier, and ethylene scavenging properties of CS/GA films with and without SP were carried out. The addition of SP in the CS/GA films showed improved elongation and lowered water vapor permeability in comparison to the control film. Interfacial interaction between the CS/GA and SP was observed in FTIR. The SEM images showed that SP clay nanoparticles were evenly distributed in the CS/GA film matrix. Increasing the SP into CS/GA films improves tensile strength, water vapor permeability, crystallinity, and thermal stability. The CS/GA/SP film showed ethylene scavenging properties increasing with SP. Based on mechanical, water barrier permeability, and ethylene scavenging properties, CS/GA film impregnated with 20% SP was optimal and was selected for broccoli florets packaging. Broccoli packaged in a CS/GA/SP20 film and stored at 23 °C for 6 d showed a reduction in loss of weight, color, and total soluble solids of broccoli florets. CS/GA/SP nano biocomposites films show great potential in the area of active packaging due to their good mechanical, barrier, and ethylene scavenging properties.
    Keywords Acacia ; biocomposites ; broccoli ; clay ; color ; corn ; corn starch ; crystal structure ; ethylene ; florets ; gum arabic ; nanocomposites ; permeability ; sepiolite ; tensile strength ; thermal stability ; water vapor ; weight loss
    Language English
    Dates of publication 2022-04
    Publishing place Elsevier Ltd
    Document type Article
    ISSN 2212-4292
    DOI 10.1016/j.fbio.2022.101556
    Database NAL-Catalogue (AGRICOLA)

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