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食品研究与开发:2021,42(1):21-25
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海藻酸钠-结冷胶复合膜的性能与应用研究
(1.青岛市纤维纺织品监督检验研究院,山东 青岛 266061;2.中国海洋大学海藻化学及应用实验室,山东 青岛 266003;3.青岛藻芸生物科技有限公司,山东 青岛 266100)
The Research of Property and Application of NaAlg-Gellan Blend Films
(1.Qingdao Institute of Textile Fibre Supervision and Inspection,Qingdao 266061,Shandong,China;2.Laboratory of Seaweed Chemistry and Applied Research,Ocean University of China,Qingdao 266003,Shandong,China;3.Qingdao Zaoyun Bio-Technology Co.,Ltd.,Qingdao 266100,Shandong,China)
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投稿时间:2020-08-18    
中文摘要: 将海藻酸钠-结冷胶复合膜与其他海藻酸钠复合膜进行性能对比,突出优越性,同时探究该复合膜的应用方向。选取明胶和硬脂酸分别与海藻酸钠复合成膜,测定不同膜液总浓度、组分比例、交联浓度条件下的透水率和溶胀度情况,和海藻酸钠-结冷胶复合膜进行抗水性对比;测试该复合膜的耐油性和耐盐水情况以考察在其他方面的可应用性。结果表明:海藻酸钠-结冷胶复合膜相对其他两种复合膜抗水性更高,在油温超过80℃后透油率和溶胀度趋于稳定,分别为2.867×10-7g/(m·s·Pa)和11.13%;其对盐水的阻隔性能对盐水浓度的变化不敏感,透水率和溶胀度分别为7.78×10-7g/(m·s·Pa)、71.9%。
中文关键词: 海藻酸钠  结冷胶  复合膜  抗水性  阻隔性
Abstract:To compared the property of NaAlg-gellan blend films with other sodium alginate (NaAlg)blend film,to highlight the superiorities,and explore the application direction of the blend films.The gelatin and stealic acid were selected to blend with NaAlg respectively,process with the water-resistant contrast with NaAlg-gellan blend films by testing water permeability(WP)and swelling degree (SD)under different component ratio,Ca2+concentration and total concentration.Then tested the oil and salt water resistance of the film to explore the application in other areas.NaAlg-gellan blend films was more water-resistant than the other films,and the permeability and SD tended to stabilize after the oil temperature exceeded 80℃,which was 2.867×10-7g/(m·s·Pa)and 11.13% respectively.The blocking ability of blend films was not sensitive to salt water concentration,the WP and SD were 7.78×10-7g/(m·s·Pa),71.9% respectively.
文章编号:202101004     中图分类号:    文献标志码:
基金项目:山东省重大科技创新工程项目(2019JZZY020613);青岛市科技惠民专项(20-3-4-31-nsh)
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