甘油
百里香酚
淀粉
化学
极限抗拉强度
食品科学
热稳定性
化学工程
溶解度
核化学
材料科学
复合材料
有机化学
精油
工程类
作者
Norhazirah Nordin,Siti Hajar Othman,Suraya Abdul Rashid,Roseliza Kadir Basha
标识
DOI:10.1016/j.foodhyd.2020.105884
摘要
This study explores the preparation of corn starch (CS) films incorporated with glycerol, thymol, and combination of glycerol and thymol via solution casting technique. The resulting films were characterized in terms of structural changes, physical, optical, mechanical, and thermal properties. Results show that the presence of both glycerol and thymol in CS film increased the film thickness while reduced the moisture content, solubility, and transparency of the film. Fourier transform infrared spectroscopy revealed that intermolecular hydrogen bonding existed between CS, glycerol, and thymol. The presence of glycerol had more remarkable impact on tensile strength of CS films than that of thymol alone, while the combination of thymol and glycerol led to synergistic effects. Thermal degradation profiles of the films revealed the maximum degradation temperature of CS film with glycerol and thymol shifted to a higher temperature compared to other films indicating better thermal stability. In conclusion, the inclusion of glycerol and thymol led to improvement in overall performance of corn starch films.
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