Physical characterization of biothermoplastic composite pellets made from modified cassava starch, glucomannan and polylactic acid using Biofiller
1 Agroindustry Technology Study Program, Faculty of Agricultural Technology, Udayana University, Badung (80361), Bali, Indonesia.
2 Agricultural and Biosystems Engineering Study Program, Faculty of Agricultural Technology, Udayana University, Badung (80361), Bali, Indonesia.
3 Department of Agroindustry Technology, Agriculture Technology Faculty, Brawijaya University, Malang, Indonesia.
Research Article
International Journal of Frontiers in Engineering and Technology Research, 2025, 09(02), 009-015.
Article DOI: 10.53294/ijfetr.2025.9.2.0049
Publication history:
Received on 16 September 2025; revised on 08 November 2025; accepted on 11 November 2025
Abstract:
The purpose of this study was to determine the appropriate type and concentration of biofiller that produces the best physical characteristics of biothermoplastic composite pellets of modified cassava starch/glucomannan/polylactic acid (MS/GM/PLA). This study used a Completely Randomized Design with the following treatments: control, microfibril cellulose (MFC) 2.5% and 5%, nanofibril cellulose (NFC) 2.5 and 5%, nanocrystalline cellulose (NCC) 2.5 and 5%, which were repeated 4 times. The observed variables were swelling, water vapor transfer rate (WVTR), oxygen transfer rate (O2TR), water holding capacity (WHC). The results showed that MS/GM/PLA biothermoplastic composite pellets using 5% NFC produced the best characteristics with a WVTR of 74.90 g/m²/day, O2TR of 87.23 ml/m²/day, WHC of 0.12%, swelling of 2.35%, Most physical properties comply with SNI 7818:2014.
Keywords:
Biothermoplastic Composite Pellets; Modified Starch; Glucomannan; Poly Lactic Acid; Biofiller; Physical Characteristics
Full text article in PDF:
Copyright information:
Copyright © 2025 Author(s) retain the copyright of this article. This article is published under the terms of the Creative Commons Attribution Liscense 4.0