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Characterisation, slow-release, and antibacterial properties of carboxymethyl chitosan/inulin hydrogel film loaded with novel antilisterial durancin GL

文献类型： 外文期刊

作者： Wang, Debao 1 ; Du, Lihui 4 ; Sun, Zhilan 1 ; Liu, Fang 1 ; Zhang, Dequan 2 ; Wang, Daoying 1 ;

作者机构： 1.Minist Sci & Technol, Jiangsu Key Lab Food Qual, Safety State Key Lab Cultivat Base, Nanjing 210014, Peoples R China

2.Chinese Acad Agr Sci, Inst Food Sci & Technol, Key Lab Agroprod Qual & Safety Control Storage & T, Minist Agr & Rural Affairs, Beijing 100193, Peoples R China

3.Jiangsu Acad Agr Sci, Inst Agr Prod Proc, Nanjing 210014, Peoples R China

4.Nanjing Univ Finance & Econ, Coll Food Sci & Engn, Collaborat Innovat Ctr Modern Grain Circulat & Saf, Key Lab Grains & Oils Qual Control & Proc, Nanjing 210023, Peoples R China

5.Minist Agr & Rural Affairs, Key Lab Cold Chain Logist Technol Agroprod, Nanjing 210014, Peoples R China

关键词： Carboxymethyl chitosan; Bacteriocin; Hydrogel; Listeria; Film

期刊名称：CARBOHYDRATE POLYMERS （ 影响因子：11.2； 五年影响因子：10.2 ）

ISSN： 0144-8617

年卷期： 2023 年 318 卷

页码：

收录情况： SCI

摘要： This paper reports the development of a hydrogel film with antibacterial activity and controlled release characteristics. Carboxymethyl chitosan (CMCS) is grafted onto durancin GL and inulin via a mediated reaction between N-hydroxysuccinimide and 1-(3-dimethylaminopropyl)-3-ethylcarbodiimide hydrochloride. Rheology tests, Fourier transform infrared (FTIR) spectroscopy, X-ray photoelectron spectroscopy, and lap shear tests confirmed the formation of a stable chemical cross-linking and excellent adhesion hydrogel with 4 % CMCS and 8 % inulin. The CMCS/inulin hydrogel film loaded with durancin GL appears transparent and uniform. FTIR spectroscopy results reveal the interaction mode among CMCS, inulin, durancin GL, and the hydrogel film structure. Cross-linking improved thermal stability and water-vapour barrier performance. The hydrophobicity of CMCS/inulin @Durancin GL increased under a durancin GL concentration of 0.036 g/30 mL, and the release of active substances is prolonged. In-vitro antibacterial capacity and salmon preservation experiments show that the addition of durancin GL enhanced the antibacterial activity of the hydrogel film. Therefore, CMCS/inulin@Durancin GL hydrogel films can be used as fresh-keeping packaging materials in practical applications.

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