改性柚皮纤维大豆分离蛋白复合膜的制备  

The Preparation of the Modified Pomelo Peel Fiber and Soy Protein Isolate Composite Film

作　　者：施永清[1] 郁莉萍 潘王盈 戴维亚 孙彤[2] 励建荣[2] 

机构地区：[1]浙江工商大学食品与生物工程学院,杭州310018 [2]渤海大学,辽宁锦州121013

出　　处：《中国食品学报》2018年第2期102-111,共10页Journal of Chinese Institute Of Food Science and Technology

基　　金："食品科学与工程浙江省重中之重一级学科"项目(2017SIAR221);十二五浙江省级特色专业(食品科学与工程)建设项目(1110XJ2914098)

摘　　要：以改性柚皮纤维、大豆分离蛋白为原料制备复合膜。研究了改性柚皮纤维、大豆分离蛋白对复合膜结构与性能的影响。采用红外光谱法(FT/IR)、差式扫描量热法(DSC)和热重法(TGA)对复合膜进行结构与性能表征。结果表明:复合膜较相同条件下改性柚皮纤维和大豆分离蛋白单纯膜的结构更加稳定。在单因素试验基础上,采用响应面Box-Behnken试验设计法优化复合膜的制膜工艺。以物理强度、透氧性、透湿性为评价指标,结合多指标综合加权评分法对复合膜各项性能进行综合评定。结果表明,在大豆分离蛋白3.9%,改性柚皮纤维2.9%,超声功率210 W,超声时间15 min的条件下制备复合膜的综合评分高达79.91,与预测值80.05基本相符。In this study, composite films were prepared by modified pomelo peel fiber and soy protein isolate as raw material. The influence of raw material on the structure and the performance of composite films were investigated. The structure and the performance of composite films were characterized by FT-IR, DSC and TGA. The results show that the structure of the composite film is more stable than that of the modified pomelo peel fiber and soy protein isolate single film at the same condition. Secondly, the optimal conditions for composite film are determined by response surface method based on an evaluation of synthetically weight mar method. Results showed that the comprehensive evaluation could reach 79.91, close to the estimated value of 80.05 when modified pomelo peel fiber 2.9%, soy protein isolate 3.9%, ultrasonic intensity 210 W, ultrasonic treatment time 15 min.

关 键 词：改性柚皮纤维 大豆分离蛋白 复合膜 综合评定 响应面法 

分 类 号：TS209[轻工技术与工程—食品科学]