林产化学与工业Issue(6)：1-10,10.DOI:10.20195/j.issn.0253-2417.2024220
CS-SA-CMCS-PVA水凝胶复合保鲜膜的制备及性能
Preparation and Properties of Composite Preservation Film of Derived From CS-SA-CMCS-PVA Hydrogel
摘要
Abstract
A composite preservation film derived from CS-SA-CMCS-PVA hydrogel was prepared by the method of quick ion crosslink using sodium alginate(SA),camellia oleifera saponin(CS),carboxymethyl chitosan(CMCS)and polyvinyl alcohol(PVA)as starting materials,and its chemical structure,microstructure,mechanical properties,water absorption properties,water retention properties and preservation properties were characterized.The results showed that the addition of CS,CMCS and PVA made the SA film produces crystal structure and improved its structure.The pore size of the generated CS-SA-CMCS-PVA film decreased,the structure was compact and the stability was improved.The hydrogen bond interaction between each component in the hydrogel and the ion interaction between SA and Ca2+endow the CS-SA-CMCS-PVA film with excellent mechanical properties.Compared with SA film,the compression performance of CS-SA-CMCS-PVA film increased by 2.71 MPa,and the tensile strength increased by 0.41 MPa.Compared with SA membrane,the swelling ratio of CS-SA-CMCS-PVA membrane decreased from68.09%to39.31%.The moisture retention rate of CS-SA-CMCS-PVA film increased from7.07%to 40.75%.Compared with uncoated bayberry,the mass loss rate of bayberry coated with CS-SA-CMCS-PVA film-forming solution decreased from 37.13%to 12.47%,the decay rate decreased from 87.50%to 25.00%,and the titratable acid content increased from 0.39%to 0.45%on the 7th day of storage.关键词
海藻酸钠/油茶皂素/聚乙烯醇/水凝胶/水果保鲜Key words
sodium alginate/camellia saponin/polyvinyl alcohol/hydrogel/fruit preservation分类
化学化工引用本文复制引用
RAO Hongdan,ZHONG Haiyan,HU Lisong,FANG Xuezhi,DU Menghao,LUO Fan..CS-SA-CMCS-PVA水凝胶复合保鲜膜的制备及性能[J].林产化学与工业,2025,(6):1-10,10.基金项目
浙江省重点研发项目(2023C02042) （2023C02042）
