Article Per Year (5 Year)
p-Index From 2021 - 2026
0.23
P-Index
This Author published in this journals
All Journal World Chemical Engineering Journal
Mella Herdini
Unknown Affiliation
Chemical Engineering, Chemistry & Bioengineering

Published : 1 Documents Claim Missing Document
Claim Missing Document
Check
Articles

Found 1 Documents
Search

 1 
Effect of Glycerol Concentration and Gelatinization Temperature on Beneng Taro (Xanthosoma undipes K. Koch) Starch/PVA Bioplastic Films Prepared by Solvent Casting Mella Herdini; Evi Triwulandari; Wardalia Wardalia
World Chemical Engineering Journal VOLUME 10 NO. 1 JUNE 2026
Publisher : Chemical Engineering Department, Engineering Faculty, Universitas Sultan Ageng Tirtayasa

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.62870/wcej.v1i1.40702

Abstract

Bioplastics based on Beneng taro (Xanthosoma undipes K. Koch) starch were prepared using the solvent casting method with glycerol as a plasticizer and polyvinyl alcohol (PVA) as an additional polymer. This study aimed to evaluate the effects of glycerol concentration and gelatinization temperature on the mechanical, chemical, and thermal properties of starch-based bioplastic films. Films were prepared at starch:glycerol ratios of 60:40, 70:30, and 80:20 (w/w), with gelatinization temperatures of 75, 80, 85, and 90 °C. The amylose content of Beneng taro starch was 11%. Increasing glycerol concentration increased elongation at break from 10.30% to 29.04%, but decreased tensile strength from 5.13 MPa to 0.84 MPa. FTIR analysis indicated the presence of characteristic O–H, C–H, and C–O functional groups, suggesting hydrogen-bonding interactions among starch, glycerol, and PVA without the formation of new functional groups. DSC analysis showed melting temperatures in the range of 82–91 °C, with the highest thermal stability observed at a gelatinization temperature of 80 °C. These results indicate that glycerol concentration and gelatinization temperature strongly influence the flexibility, mechanical strength, and thermal behavior of Beneng taro starch-based bioplastic films.
Co-Authors Evi Triwulandari Wardalia Wardalia