期刊名称：Advance Journal of Food Science and Technology
印刷版ISSN：2042-4868
电子版ISSN：2042-4876
出版年度：2017
卷号：13
期号：7
页码：272-278
DOI：10.19026/ajfst.13.5280
出版社：MAXWELL Science Publication
摘要：The aim of this research was to study protein-carbohydrate interaction in edible films. Edible films were made from a blend of cassava starch and casein. Tensile Strength (TS), percentage elongation (%E) and Solubility (S) wereobserved to study their inter-relationships. Fourier Transform Infra Red (FTIR) Spectroscopy was used to monitor the molecular interactions. Interaction of carbohydrate and protein was studied at pH of 4, 7 and 9 and various casein percentages (0, 20, 40, 60, 80 and 100%, respectively). Increasingthe casein ratio decreased %E and S butimproved TS. Improving the %E decreased the TS and S when pH was increased (p -1 and similar to casein films in the range 1700-1500 cm-1. Highest interaction between cassava starch and casein molecules occurred at pH 9 in all cases. At 3600-2800 cm-1 it was the 60% casein films. In the region 1700-1500 cm-1 it was the 80% caseinfilms and in the range 1200-1000 cm-1 was the 20% casein films.Presumable optimum interaction of carbohydrate-protein occurred at pH 9.
