高直链玉米淀粉/羟丙基甲基纤维素可食性膜的制备及性能研究  

Preparation and Properties of Edible Films of High-Amylose Corn Starch/HPMC (Hydroxypropyl Methylcellulose)

作　　者：翟晓松 秦洋 陆慧玲[1] 代养勇[1] 张慧[1] 王文涛[1] 侯汉学[1] 陈宁 Zhai Xiaosong;Qin Yang;Lu Huiling;Dai Yangyong;Zhang Hui;Wang Wentao;Hou Hanxue;Chen Ning(Department of Food Science and Engineering,Shandong Agricultural University/Engineering and Technology Center for Grain Processing in Shandong Province,Tai′an 271018;Shandong Jinsheng Cereals and Oils Group,Linyi 276600)

机构地区：[1]山东农业大学食品科学与工程学院、山东省粮食加工技术工程技术研究中心,泰安271018 [2]山东金胜粮油集团有限公司,临沂276600

出　　处：《中国粮油学报》2019年第7期33-38,共6页Journal of the Chinese Cereals and Oils Association

基　　金：山东省自然科学基金(ZR2017BC018);山东省重点研发计划(GG201710020038);博士后科研工作站研究课题(201701)

摘　　要：以高直链玉米淀粉(HACS)和羟丙基甲基纤维素(HPMC)为主要成膜基材,采用溶液流延法制备了HACS/HPMC可食性膜。研究了不同配比的HACS与HPMC对可食性膜的结晶性能、力学性能、亲水性能和水蒸气阻隔性能等的影响。结果表明,随着HPMC比例的增大,HACS与HPMC之间的氢键作用减弱,复合膜的水溶性增大,连续相由HACS转变为HPMC,但HACS与HPMC的相容性变差。HPMC可有效降低可食性膜的结晶程度并抑制其在储藏过程中的老化。在复合膜中,当HACS与HPMC比例为8∶2时,可食性膜具有最大抗拉强度(7.5MPa)、断裂伸长率(14.7%)、水接触角(84.33°)和最低水蒸气透过系数(2.17×10^-10g·m·m^-2·s^-1·Pa^-1)。纯HACS膜和纯HPMC膜的透光性能均优于HACS/HPMC复合膜。High-amylose corn starch (HACS) and hydroxypropyl methylcellulose (HPMC) were selected as the main film forming materials to prepare HACS/HPMC edible films by solution casting method.The effects of different proportions of HACS and HPMC with diverse properties on crystallization,mechanical,hydrophilic and water vapor barrier properties of edible films were studied.The results showed that with the increase of HPMC proportion,the hydrogen bond between HACS and HPMC weakened,the water solubility of the composite membrane increased,and the continuous phase was transformed from HACS to HPMC,while the compatibility between HACS and HPMC became poor.The HACS/HPMC (8∶ 2) edible film had the largest tensile strength (7.5 MPa),elongation at break (14.7%),water contact angle (84.33°) and the lowest water vapor permeability (2.17×10^-10 g·m·m^-2 ·s^-1 ·Pa^-1 ).And it was tested out that both pure HACS film.Plus,the pure HPMC film expressed better light transmittance than HACS/HPMC composite films.

关 键 词：高直链玉米淀粉 羟丙基甲基纤维素 可食性膜 性能 

分 类 号：TS231[轻工技术与工程—粮食、油脂及植物蛋白工程]