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Preparation of citric acid cross-linked chitosan quaternary phosphonium/polyvinyl alcohol composite film and its application in strawberry preservation.
Lai, Wangkun; Wang, Lin; Pang, Yu; Xin, Meihua; Li, Mingchun; Shi, Lulu; Mao, Yangfan.
Afiliação
  • Lai W; College of Material Science and Engineering, Huaqiao University, Engineering Research Center of Environment-Friendly Functional Materials, Ministry of Education, Xiamen 361021, PR China.
  • Wang L; College of Material Science and Engineering, Huaqiao University, Engineering Research Center of Environment-Friendly Functional Materials, Ministry of Education, Xiamen 361021, PR China. Electronic address: wanglin@hqu.edu.cn.
  • Pang Y; College of Material Science and Engineering, Huaqiao University, Engineering Research Center of Environment-Friendly Functional Materials, Ministry of Education, Xiamen 361021, PR China.
  • Xin M; College of Material Science and Engineering, Huaqiao University, Engineering Research Center of Environment-Friendly Functional Materials, Ministry of Education, Xiamen 361021, PR China. Electronic address: mhxin@hqu.edu.cn.
  • Li M; College of Material Science and Engineering, Huaqiao University, Engineering Research Center of Environment-Friendly Functional Materials, Ministry of Education, Xiamen 361021, PR China. Electronic address: mcli@hqu.edu.cn.
  • Shi L; College of Material Science and Engineering, Huaqiao University, Engineering Research Center of Environment-Friendly Functional Materials, Ministry of Education, Xiamen 361021, PR China.
  • Mao Y; The Instrumental Analysis Center, Huaqiao University, Xiamen 361021, PR China.
Food Chem ; 455: 139908, 2024 Oct 15.
Article em En | MEDLINE | ID: mdl-38850971
ABSTRACT
Chitosan quaternary phosphine salts (NPCS) were synthesized with enhanced antimicrobial properties using a two-step method. Composite films (CNSP) were prepared by incorporating NPCS and polyvinyl alcohol (PVA) as the base material, citric acid as the crosslinker and functional additive, exhibiting antibacterial and UV-blocking properties. The composite film showed a maximum tensile strength of 20.4 MPa, an elongation at break of 677%, and a UV light barrier transmittance of 70%. Application of these composite membranes in preserving strawberries demonstrated effectiveness in maintaining freshness by preventing water loss, inhibiting microbial growth, and extending shelf life. In addition, the composite film demonstrated biosafety. These results indicate that CNSP composite films holds significant promise for safe and sustainable food packaging applications.
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Texto completo: 1 Coleções: 01-internacional Base de dados: MEDLINE Assunto principal: Álcool de Polivinil / Embalagem de Alimentos / Ácido Cítrico / Fragaria / Quitosana / Conservação de Alimentos Idioma: En Revista: Food Chem Ano de publicação: 2024 Tipo de documento: Article País de publicação: Reino Unido
Texto completo
Adicionar na Minha BVS
Imprimir
XML
PubMed Links
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Texto completo: 1 Coleções: 01-internacional Base de dados: MEDLINE Assunto principal: Álcool de Polivinil / Embalagem de Alimentos / Ácido Cítrico / Fragaria / Quitosana / Conservação de Alimentos Idioma: En Revista: Food Chem Ano de publicação: 2024 Tipo de documento: Article País de publicação: Reino Unido