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Preparation and Characterization of a Biodegradable Film Using Irradiated Chitosan Incorporated with Lysozyme and Carrageenan and Its Application in Crayfish Preservation

文献类型： 外文期刊

作者： Qiu, Liang 1 ; Luo, Qinghua 3 ; Bai, Chan 1 ; Xiong, Guangquan 1 ; Jin, Shiwei 3 ; Li, Hailan 1 ; Liao, Tao 1 ;

作者机构： 1.Hubei Acad Agr Sci, Inst Agroprod Proc & Nucl Agr Technol, Hubei Engn Res Ctr Agr Prod Irradiat, 5th Nanhu Ave, Wuhan 430064, Peoples R China

2.Minist Agr & Rural Affairs, Key Lab Cold Chain Logist Technol Agroprod, Wuhan 430064, Peoples R China

3.South Cent Univ Nationalities, Key Lab Catalysis & Energy Mat Chem Educ, Hubei Key Lab Catalysis & Mat Sci, Wuhan 430074, Peoples R China

关键词： chitosan; irradiation modification; biodegradable film; crayfish preservation

期刊名称：FOODS （ 影响因子：5.2； 五年影响因子：5.5 ）

ISSN：

年卷期： 2023 年 12 卷 14 期

页码：

收录情况： SCI

摘要： In this study, a composite film was prepared using irradiated chitosan, lysozyme, and carrageenan for crayfish preservation. First, the chitosan was degraded by gamma rays, with the best antimicrobial properties being found at 100 KGy. By using the response surface method, the components of the composite film were irradiated chitosan (CS) at 0.016 g/mL, lysozyme (LM) at 0.0015 g/mL, and carrageenan (CA) at 0.002 g/mL. When compared to the natural chitosan film, the Fourier-transform infrared spectroscopy (FTIR) and X-ray diffraction (XRD) results demonstrated that the chemical properties of the composite film did not change with the addition of LM and CA, while the physical and antibacterial properties increased, including tensile strength (16.87 & RARR; 20.28 N), hydrophobicity (67.9 & RARR; 86.3 & DEG;), and oxygen permeability (31.66 & RARR; 24.31 m(3)& BULL;um/m(2)& BULL;day & BULL;kPa). Moreover, the antibacterial activity of the films increased with the addition of LM and CA, especially for Shewanella putrefaciens: the zone of inhibition (mm) of CS, CS/LM, and CS/LM/CA was 9.97 & PLUSMN; 0.29, 14.32 & PLUSMN; 0.31, and 14.78 & PLUSMN; 0.21, respectively. Finally, the CS/LM/CA film could preserve crayfish for 10 days at 4 & DEG;C, whereas the polyethylene (PE) film could only preserve them for 6 days. Moreover, the composite film was excellent at inhibiting oxidative deterioration (TBARS value: 2.12 mg/kg, day10) and keeping the texture of crayfish muscle. Overall, our results suggested that the CS/LM/CA composite film produced can be applied as a biodegradable film in aquatic product packaging.

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