Preparation and characterization of peach gum/chitosan polyelectrolyte composite films with dual cross-linking networks for antibacterial packaging

Chen, Ying; Ye, Yunyue; Zhu, Zhu; Xu, Bo; Meng, Linghan; Yang, Tao; Zhang, Liang; Qian, Jianya; Liu, Fengsong

doi:10.1016/j.ijbiomac.2024.129754

Cited by 6 publications

(1 citation statement)

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“…Figure 8 highlights that the laver film demonstrates excellent antioxidant properties, boasting a radical scavenging activity of 51.18%, nearly twice that of the S5-5 film. In summary, the integration of laver into the starch film is a promising candidate for food packaging applications [ 37 ].…”

Section: Resultsmentioning

confidence: 99%

Comprehensive Evaluation of the Physicochemical Attributes, Antioxidant Capacity, and pH-Responsive Behavior of Starch Films Enhanced by Laver Incorporation

Chen,

Zhu,

et al. 2024

Foods

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Herein, a new starch film incorporating laver was developed to address issues related to inadequate water resistance and suboptimal preservation quality in food packaging. The integration of laver into starch film formulations offers a compelling avenue for creating biodegradable, active, and smart food packaging. Scanning electron microscope (SEM) analysis revealed that the starch film with a laver concentration of 70% exhibited a uniformly flat microstructure, as expected. Fourier-transform infrared spectroscopy (FTIR) confirmed the presence of intermolecular interactions and hydrogen bonding between the starch and laver. Viscoelastic tests demonstrated the superior film-forming performance of the starch/laver composite films. Moreover, it was found that the most favorable concentration of incorporated laver was 10%. Specifically, the S7-3 film emerged as a promising candidate for food packaging applications, boasting the highest contact angle (CA) value of 114.98 ± 1.28°, the lowest water solubility (WS) value of 15.38%, and a reduced water vapor transmission rate (WVTR) value of 2.52 g/m2 × h. Additionally, the S3-7 film displayed an extraordinary tensile strength of 32.47 MPa, an elongation at break of 19.04%, and a Young’s modulus of 606.83 MPa. Furthermore, the starch/laver composite films exhibited outstanding UV-blocking capabilities, exceptional pH-responsive behavior, and significant antioxidant activity, underscoring their potential for packaging applications with laver integration.

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Section: Resultsmentioning

confidence: 99%