增塑剂种类对普鲁兰多糖-可溶性大豆多糖膜性能、结构及应用效果的影响  

Effect of Plasticizer Type on Properties,Structure and Application Effect of Pullulan-Soluble Soybean Polysaccharide Film

作　　者：赵璠 江李君 李双蝶 王晨宇 孙迪 刘宇 姜维 ZHAO Fan;JIANG Lijun;LI Shuangdie;WANG Chenyu;SUN Di;LIU Yu;JIANG Wei(National Engineering Research Center for Marine Aquaculture,Zhejiang Ocean University,Zhoushan 316022,China;College of Food and Pharmacy,Zhejiang Ocean University,Zhoushan 316022,China)

机构地区：[1]浙江海洋大学,国家海洋设施养殖工程技术研究中心(创新应用研究院),浙江舟山316022 [2]浙江海洋大学食品与药学学院,浙江舟山316022

出　　处：《食品工业科技》2025年第5期35-43,共9页Science and Technology of Food Industry

基　　金：国家重点研发计划项目(2023YFD2401501);浙江省基础公益研究计划项目(LTGN23C200013);定海区科技计划项目(2022C31007);浙江省教育厅一般科研项目(Y202250593)。

摘　　要：为改善普鲁兰多糖-可溶性大豆多糖膜的柔韧性和热封性能,提高其应用潜力,本文研究了四种增塑剂(聚乙二醇、丙二醇、甘油和山梨醇)对普鲁兰多糖-可溶性大豆多糖膜物理性能、结构和应用效果的影响。与未添加增塑剂的普鲁兰多糖-可溶性大豆多糖膜相比,添加增塑剂膜的厚度增加、亮度降低、水分含量和断裂伸长率显著升高(P<0.05)。丙二醇膜、甘油膜和山梨醇膜表面光滑,结构均匀致密;聚乙二醇膜表面粗糙呈多孔结构,透光率和热封强度显著降低(P<0.05);丙二醇膜水接触角降低、透光率、溶解时间和热封强度无明显变化;甘油膜和山梨醇膜的断裂伸长率显著高于其他膜(P<0.05),水接触角和溶解时间显著降低(P<0.05),热封强度显著升高(P<0.05)。肽粉包装应用效果表明,甘油膜的热封形态和速溶效果最佳。综上,甘油膜溶解性好(溶解时间<30 s),柔韧性高(断裂伸长率高),且热封强度显著高于其他膜(2.58 N/15 mm)(P<0.05),具有作为热封速溶膜的应用潜力。In order to improve the flexibility and heat-sealing performance of pullulan-soluble soybean polysaccharide film and its application potential,the effects of four plasticizers(polyethylene glycol,propylene glycol,glycerol and sorbitol)on the physical properties,structure and application effect of pullulan-soluble soybean polysaccharide film were studied in this article.Compared to the pullulan-soluble soybean polysaccharide film without plasticizer,the film with plasticizer showed increase in thickness,moisture content and elongation at break,and decrease in brightness(P<0.05).The propylene glycol,glycerol,and sorbitol films had smooth surfaces and uniform,compact structures.The polyethylene glycol film had a rough surface and porous structure,with a significant decrease in light transmittance and heat-sealing strength(P<0.05).The propylene glycol film showed a decrease in water contact angle,but no significant changes in light transmittance,dissolution time,and heat-sealing strength were observed.The glycerol and sorbitol films showed a higher elongation at break than other films,with a significantly decrease in water contact angle and dissolution time(P<0.05)and a significantly increase in heat-sealing strength(P<0.05).The results of the peptide powder packaging application indicated that the glycerol film showed the best heat-sealing form and instant effect.In summary,glycerol film exhibits good solubility(dissolution time<30 s),high flexibility(high elongation at break),and significant higher heat-sealing strength(2.58 N/15 mm)(P<0.05)compared to other films,and has potential applications as a heat-sealing instant film.

关 键 词：增塑剂 普鲁兰多糖-可溶性大豆多糖膜 机械性能 速溶 热封 

分 类 号：TS206.4[轻工技术与工程—食品科学]