Effect of ascorbic acid concentration on the properties of biodegradable plastic based on yellow kepok banana (Musa saba) weevil starch

INTERNATIONAL CONFERENCE ON ENERGY AND ENVIRONMENT (ICEE 2021) Pub Date : 2021-09-28 DOI:10.1063/5.0059605

Putri Sandi Daniar, D. Hermanto, M. G. Darmayanti, N. Ismillayli

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Abstract

Biodegradable plastic was synthesized from the starch of yellow kepok banana weevil, and the effect of ascorbic acid concentration on its properties was evaluated. Chitosan was used for filler in a plastic network. Starch and chitosan have been used widely as materials for plastic due to their biodegradability and nontoxic effect. The mechanical properties include tensile strength, elongation, biodegradability, and water resistance to determine the quality of the plastic that has been synthesized. The result of FTIR spectroscopy analysis showed that the interactions between starch, chitosan, and ascorbic acid were hydrogen bonds and the ionic interaction of protonated amine in chitosan by the ascorbic acid. The elongation and biodegradability of the plastics were increased as the amount of ascorbic acid raised, whereas their tensile strength was decreased. The biodegradable test confirmed that obtained bioplastic could degrade by 25-66.67% in the soil for 6 days. Therefore, ascorbic acid is good as a plasticizer in starch-based plastic production.

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抗坏血酸浓度对黄竹香蕉(Musa saba)象鼻虫淀粉生物降解塑料性能的影响

以黄竹香蕉象鼻虫淀粉为原料合成了生物降解塑料，并考察了抗坏血酸浓度对塑料性能的影响。用壳聚糖作为塑料网的填料。淀粉和壳聚糖因其可生物降解和无毒的特性而被广泛用作塑料材料。机械性能包括抗拉强度、伸长率、生物降解性和耐水性，以确定所合成塑料的质量。FTIR光谱分析结果表明，淀粉、壳聚糖和抗坏血酸之间的相互作用是氢键，壳聚糖中的质子化胺与抗坏血酸的离子相互作用。随着抗坏血酸用量的增加，塑料的伸长率和生物降解性提高，而拉伸强度降低。生物降解试验证实，获得的生物塑料在土壤中降解率为25-66.67%，持续6 d。因此，抗坏血酸在淀粉基塑料生产中是很好的增塑剂。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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INTERNATIONAL CONFERENCE ON ENERGY AND ENVIRONMENT (ICEE 2021)

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