Jurnal Teknik Kimia
Vol. 30 No. 3 (2024): Jurnal Teknik Kimia

Producing starch-based bioplastic from durian skin with the addition of sorbitol plasticizer and chitosan filler

Rahmatullah Rahmatullah (Department of Chemical Engineering, Faculty of Engineering, Universitas Sriwijaya, Indonesia)
Rizka Wulandari Putri (Department of Chemical Engineering, Faculty of Engineering, Universitas Sriwijaya, Indonesia)
Rifqi Sufra (Department of Chemical Engineering, Institut Teknologi Sumatera, Lampung - Indonesia)



Article Info

Publish Date
09 Feb 2026

Abstract

Plastic and organic waste are global issues in various developing countries, especially Indonesia.Unproper waste management will bring a negative impact on the environment. Organic waste such as durian skin can be converted into starch as a raw material for bioplastics as an alternative solution to reduce plastic waste. This study aims to make bioplastics based on starch from durian skin with the addition of sorbitol as a plasticizer and chitosan as a filler with the addition of tapioca flour adhesive. The ratio of tapioca flour to durian skin starch is 2:0.75, 2:1, 2:2, while the concentration of sorbitol plasticizer used is 25 %, and chitosan filler is 4 % of the total starch mass. The samples were characterized by physical and mechanical tests (thickness, tensile strength, elongation, and young's modulus), functional group tests with FTIR, and thermal strength tests with TGA-DTG. From the results, the best sample was sample C (the ratio of tapioca flour to durian skin starch 2:2, sorbitol plasticizer 3.00 ml, and chitosan filler 0.48 g) with a thickness of 0.11 mm, tensile strength 31.44 MPa, young's modulus 31.23 MPa, and stable thermal resistance with the smallest mass loss of 81.454 % up to a temperature of 600 oC.

Copyrights © 2024






Journal Info

Abbrev

jtk

Publisher

Subject

Chemical Engineering, Chemistry & Bioengineering Chemistry Energy Engineering Industrial & Manufacturing Engineering

Description

Jurnal Teknik Kimia merupakan publikasi tulisan ilmiah hasil riset dan pengalaman lapangan di bidang Teknik Kimia, mulai dari prinsip dasar atau fundamental sampai pada penerapan/aplikasinya di industri. Jurnal Teknik Kimia dalam versi cetak telah diterbitkan sejak tahun 1996. Jurnal Teknik Kimia ...