以茄子粉和玉米淀粉为基础的可食用薄膜的开发与特性研究。

Development and characterization of edible films based on eggplant flour and corn starch.

机构信息

Department of Food Science and Technology, Faculty of Agriculture, Urmia University, Urmia, Iran.

Department of Food Science and Technology, Faculty of Agriculture, Urmia University, Urmia, Iran.

出版信息

Int J Biol Macromol. 2018 Dec;120(Pt B):1639-1645. doi: 10.1016/j.ijbiomac.2018.09.126. Epub 2018 Sep 21.

Abstract

In this study, biodegradable and edible films based on eggplant flour (EF) and corn starch (CS) were prepared using casting method at proportion of 0-100, 25-75, 50-50, 75-25 and 100-0%, w/w. The mechanical, barrier, physical, and biodegradability properties were evaluated. Tensile strength, elongation at break, Young's modulus, thickness, density and L parameter of pure starch films were higher than those of other films. Solubility, water vapor permeability (WVP), moisture content and swelling index of films were augmented with the substitution of CS by EF. Color measurement of the edible films indicated that increasing the proportion of EF increased a, b and opacity values. The highest amount of water sorption was obtained for pure EF films. Moreover, the incorporation of EF accelerated films biodegradability compared to ones with only starch. In general, EF is a promising material for the formulation of edible and biodegradable films with adequate physical properties for food applications by direct contact.

摘要

本研究采用浇注法制备了以茄子粉(EF)和玉米淀粉(CS)为原料的可生物降解和可食用薄膜,其比例为 0-100、25-75、50-50、75-25 和 100-0%,w/w。评估了机械性能、阻隔性能、物理性能和可生物降解性。纯淀粉膜的拉伸强度、断裂伸长率、杨氏模量、厚度、密度和 L 参数均高于其他膜。随着 CS 被 EF 的替代,膜的溶解度、水蒸气透过率(WVP)、水分含量和溶胀指数增加。可食用薄膜的颜色测量表明,随着 EF 比例的增加,a、b 和不透明度值增加。纯 EF 薄膜的吸水率最高。此外,与仅含淀粉的薄膜相比,EF 的加入加速了薄膜的生物降解。总的来说,EF 是一种很有前途的材料,可用于通过直接接触制备具有足够物理性能的可食用和可生物降解薄膜,适用于食品应用。

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