期刊
CARBOHYDRATE POLYMERS
卷 151, 期 -, 页码 947-956出版社
ELSEVIER SCI LTD
DOI: 10.1016/j.carbpol.2016.06.052
关键词
Composite films; LM pectin; Sodium caseinate; Complex coacervation
Coacervation between sodium caseinate (CAS) and low methoxyl pectin (LMP) at pH 3 was investigated as a function of protein/polysaccharide ratio. The highest amount of complex coacervates was formed at a CAS/LMP ratio of 2 at which the-potential value was zero and the turbidity reached its highest value. Then, the properties of films based on these complex coacervates were studied. Coacervation resulted in decreasing water content and water sorption of films as the protein concentration increased. The mechanical properties of films were highly influenced by the formation of electrostatic complexes. The highest values of Young's modulus (182.97 +/- 6.48 MPa) and tensile strength (15.64 +/- 1.74 MPa) with a slight increase of elongation at break (9.35 +/- 0.10%) were obtained for films prepared at a CAS/LMP ratio equal to 0.05. These findings show that interactions between LMP and CAS can be used to develop innovative packaging containing active molecules. (C) 2016 Elsevier Ltd. All rights reserved.
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据