Yazar "Yang, Jun" seçeneğine göre listele

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    Application of a Chitosan-Cinnamon Essential Oil Composite Coating in Inhibiting Postharvest Apple Diseases
    (Mdpi, 2023) Zhang, Wanli; Goksen, Gulden; Zhou, Yuanping; Yang, Jun; Khan, Mohammad Rizwan; Ahmad, Naushad; Fei, Tao
    The purpose of this study was to explore the film-forming properties of cinnamon essential oil (CEO) and chitosan (CS) and the effect of their composite coating on postharvest apple diseases. The results demonstrated that the composite coating exhibits favorable film-forming properties at CEO concentrations below 4% (v/v). The effectiveness of the composite coating in disease control can be attributed to two factors: the direct inhibitory activity of CEO against pathogens in vitro and the induced resistance triggered by CS on the fruits. Importantly, the incorporation of CEO did not interfere with the induction of resistance by CS in harvested apples. However, it is noteworthy that the inhibitory effect of the CS-CEO composite coating on apple diseases diminished over time. Therefore, a key aspect of enhancing the preservation ability of fruits is improving the controlled release properties of CEO within CS coatings. This will enable a sustained and prolonged antimicrobial effect, thereby bolstering the fruit preservation capabilities of the composite coatings.
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    Application of tragacanth gum as a potential food packaging film and its performance enhancement strategy
    (Elsevier Sci Ltd, 2025) Ma, Ke; Yang, Jun; Goksen, Gulden; Alamri, Abdulhakeem S.; Alhomrani, Majid; Xia, Guanghua; Zhang, Wanli
    Currently, the widespread use of petroleum-based plastic food packaging materials and their non-degradable nature have significantly contributed to environmental issues. As a result, biopolymer-based food packaging materials are emerging as promising sustainable alternatives. Among the many biopolymers, tragacanth gum (TG) is being explored for the production of biodegradable food packaging films. As a hydrophilic colloidal polysaccharide, TG-based food packaging films possess renewable and edible properties, making them suitable for preparing food packaging films and edible coatings. This work briefly reviews the chemical properties and recent progress in the industrial applications of tragacanth gum. The research progress on different composite films based on tragacanth gum, including polymer blending, plant extract functionalization, and nanomaterial functionalization, is highlighted. Finally, the practical applications of tragacanth gum-based composite films and edible coatings in food preservation are summarized.
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    Green-synthesized silver nanoparticles immobilized on graphene oxide for fruit preservation in alginate films
    (Elsevier, 2024) Yang, Jun; Goksen, Gulden; Khan, Mohammad Rizwan; Ahmad, Naushad; Zhang, Wanli
    In this study, silver nanoparticles were synthesized by redox method using tea polyphenol as a reducing agent. These nanoparticles were then immobilized within sodium alginate (SA) composite films using graphene oxide (Go), resulting in films with enhanced food preservation capabilities. Initially, the synthesized silver nanoparticles underwent characterization through X-ray diffraction (XRD), X-ray photoelectron spectroscopy (XPS), and transmission electron microscopy (TEM). This characterization affirmed the successful synthesis of silver nanoparticles. Subsequently, the impact of silver nanoparticles and graphene oxide on the properties of the SA composite films was investigated. The SA composite films were analyzed barrier, mechanical, thermal stability, and functional properties. The findings revealed that the inclusion of silver nanoparticles immobilized in Go augmented the tensile strength (23.6 %), degradation temperature of the films, reduced water vapor permeability, and exhibited antioxidant properties (4.16 %-42.09 %), and antimicrobial activities against Escherichia coli and Staphylococcus aureus (19.79-20.37 times). The graphene oxide immobilizes the silver nanoparticles, thereby reducing the release concentration. Packaging blueberry fruits with the SA composite film impregnated with Go-immobilized silver nanoparticles reduced weight loss and wrinkle index and this enhanced blueberry fruit shelf life. Thus, this work presents a novel approach to preparing antimicrobial packaging films for post-harvest fruit preservation.
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    Rosemary essential oil: Chemical and biological properties, with emphasis on its delivery systems for food preservation
    (Elsevier Sci Ltd, 2023) Yang, Jun; Goksen, Gulden; Zhang, Wanli
    The food industry has long been committed to finding alternatives of chemical preservatives to retain the freshness of food. However, the use of chemical preservatives has raised concerns on potential toxicity, chemical contamination and other limitations. As a result, finding alternatives to these potentially harmful chemicals that can be used as food preservatives is of the utmost importance. Rosemary essential oil (REO) is one such natural food preservative and exhibits strong antibacterial and antioxidant properties. The present study briefly discusses the chemical and biological characterization of REO including the extraction method, chemical composition and its antioxidant and antimicrobial activities. And this review focued on the various delivery systems of REO in food preservation applications, such as nano emulsions (NEs), solid particle encapsulation (SPE), and biodegradable food packaging film/coatings (BFPF/BFPC), and displayed their extraction methods, chemical compositions, antimicrobial properties, and applications. It was concluded that REO is being utilized for food preservation through various delivery forms such as NEs, SPE, and BFPF, in addition to direct application for food preservation. The ability of encapsulated REO to preserve fresh foods such as meat, fish, fruits, and vegetables, has been shown to be significantly superior to that of conventional methods.