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Position: Home > Articles > Study on edible blend films made of konjac glucomannan,chitosan and carboxymethylcellulose sodium Science and Technology of Food Industry 2008 (2) 236-238+242

魔芋葡甘聚糖-壳聚糖-羧甲基纤维素钠复合可食性保鲜膜研究

作  者:
吴晓霞;李建科;余朝舟
单  位:
陕西师范大学食品工程与营养科学学院
关键词:
魔芋葡甘聚糖;壳聚糖;羧甲基纤维素钠;可食保鲜膜
摘  要:
将魔芋葡甘聚糖(KGM)、壳聚糖(CTS)和羧甲基纤维素钠(CMC-Na)作为成膜基质,以盐酸调节pH,添加甘油作为增塑剂,研究了各种成分的添加比例、甘油添加量及烘干温度对成膜性能的影响,制备出可食性复合保鲜膜。通过对膜的阻湿性、阻氧性、抗拉强度、断裂伸长率等指标进行测定,研究了膜的性能。结果表明:当三种主要成膜材料的配比(KGM∶CTS∶CMC-Na)为1∶2∶1、甘油含量为1.5%、烘干温度为40℃时,复合膜形成一种新的结晶体,具有最大的阻隔性能、较强的抗拉强度和中等强度的断裂伸长率,并能在短时间内迅速溶解,此时膜性能最优。
译  名:
Study on edible blend films made of konjac glucomannan,chitosan and carboxymethylcellulose sodium
作  者:
WU Xiao-xia,LI Jian-ke,YU Chao-zhou(College of Food Engineering and Nutritional Science,Shaanxi Normal University,Xi'an 710062,China)
关键词:
konjac glucomannan;chitosan;carboxymethylcellulose sodium;edible films
摘  要:
An edible and blend film was prepared with different blending ratios of konjac glucomannan,chitosan and carboxymethylcellulose sodium.The physical properties of the films such as water-vapor transmission ratio,tensile strength,oxygen barrier capacity and elongation at break were also examined.The results indicated that the blend system had a conditional miscibility,the optimal technical parameters are as follow:KGM∶CTS∶CMC-Na was 1∶2∶1,glycerin content was 1.5% and the dryness temperature at 40℃.A new crystal occurred and hydrogen bonding interaction was strengthened when the blend film had a nice breaking elongation,a good tensile strength,and the least water-vapor transmission ratio and gas barrier property at the same ratio.All the blend films showed a wonderful water-solubility and could dissolve in short time.

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