燕麦蛋白淀粉样聚集体-羧甲基纤维素钠复合膜的制备及性能  

Preparation and Properties of Oat Protein Amyloid Aggregate-Sodium Carboxymethyl Cellulose Composite Film

作　　者：王亮亮 韩苗苗 曹崇江 周峰 WANG Liangliang;HAN Miaomiao;CAO Chongjiang;ZHOU Feng(College of Engineering,China Pharmaceutical University,Nanjing 211198,China;School of Food Science,Nanjing Xiaozhuang University,Nanjing 211171,China)

机构地区：[1]中国药科大学工学院,江苏南京211198 [2]南京晓庄学院食品科学学院,江苏南京211171

出　　处：《食品工业科技》2025年第3期110-119,共10页Science and Technology of Food Industry

基　　金：国家重点研发计划(2022YFF1100603);江苏省青年基金项目(BK20231008);江苏省高校优秀科技创新团队(苏教科[2021]第1期)。

摘　　要：为改善燕麦蛋白基复合膜理化特性,本实验将天然燕麦蛋白(OP)改性制备燕麦蛋白淀粉样聚集体(OPA)并进行表征,以此为基质与羧甲基纤维素钠(CMCNa)共同制备复合膜。通过傅里叶红外光谱(FTIR)、差示扫描量热仪(DSC)、扫描电子显微镜(SEM)等方法研究所得复合膜的微观结构及性能,并测定复合膜机械性能、光学性能、含水量、水溶性、水蒸气透过性。结果表明,燕麦蛋白改性后结构发生显著变化,相较于OP/CMCNa复合膜,利用OPA制备的复合膜表面更加光滑,结构更加紧密。且OPA/CMCNa复合膜水溶性较OP/CMCNa复合膜降低了7.02%~15.84%,耐水性显著提高。其中由OPA8制备的复合膜穿刺距离提高到6.513 mm,受力提高到701.2 g,机械性能显著提高。综上,燕麦蛋白淀粉样聚集体可有效改良天然燕麦蛋白基复合膜的透明度、耐水性和机械性能。研究结果可为改性燕麦蛋白复合膜的制备及性能研究提供参考。In order to improve the physicochemical properties of oat protein-based composite film,the natural oat protein(OP)was modified to prepare oat protein amyloid aggregates(OPA),and then the composite film was prepared with sodium carboxymethyl cellulose(CMCNa).The microstructure and properties of the composite films were studied by Fourier infrared spectroscopy(FTIR),differential scanning calorimetry(DSC)and scanning electron microscopy(SEM).The mechanical properties,optical properties,moisture content,water solubility and water vapor permeability of the composite films were also determined.The results showed that the structure of the modified oat protein changed significantly.Compared with the OP/CMCNa composite film,the surface of the OPA/CMCNa composite film was smoother and the structure was more compact.Compared with OP/CMCNa composite film,the water solubility of OPA/CMCNa composite film was reduced by 7.02%to 15.84%,and the water resistance of OPA/CMCNa composite film was significantly improved.Among them,the puncture distance of the composite film prepared by OPA8 was increased to 6.513 mm,the force was increased to 701.2 g,and the mechanical properties were significantly improved.In conclusion,oat protein amyloid aggregates can effectively improve the transparency,water resistance and mechanical properties of natural oat protein-based composite films.The results can provide reference for the preparation and properties of modified oat protein composite film.

关 键 词：燕麦蛋白 淀粉样聚集体 复合膜 结构特性 机械性能 

分 类 号：TS206.4[轻工技术与工程—食品科学]