Abstract
Biodegradable film based on taro starch with variations of duck bone gelatin concentration: physical and barrier properties
Highlights
This study aims to improve the physical properties of biodegradable films based on taro starch added with duck bone gelatin and glycerol as a plasticizer by using the solution casting method
The addition of duck bone gelatin had an insignificant effect on the water vapor transmission rate but a very significant effect on water solubility and a significant effect on water absorption
Starch from taro tubers was used because it has a starch content of 80%, which is greater than corn starch content of 71.3% and cassava starch content of 72.17% (Rahmawati et al, 2012); besides, taro starch is a natural renewable material
Summary
This study aims to improve the physical properties of biodegradable films based on taro starch added with duck bone gelatin and glycerol as a plasticizer by using the solution casting method. Plastic is a common packaging material but is not decomposable (Muin et al, 2017) It has advantages, including practical, transparent, flexible, economical, strong, and multifunctional. This is what causes plastic packaging to be widely used by the community, resulting in increasing waste. The main ingredients for making biodegradable films come from cellulose, chitosan, starch, protein, or a combination of components (Asngad et al, 2018). Among these natural polymers, starch is a polysaccharide that is widely used as a material for making biodegradable films. Taro starch and duck bone gelatin is renewable in making biodegradable films. Gelatin can increase its solubility in water to facilitate the degradation process (Kumar et al, 2019)
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