|
Characteristics of Ganyong (Canna edulis) Bioplastic 1Department of Biosystems Engineering, Faculty of Agricultural Technology, Universitas Brawijaya, Jl. Veteran, Malang, ZIP 65145, Indonesia Abstract The conventional plastics, known for their strength, flexibility, light weight, and low cost, has significant environmental impact due to their resistance to degradation. This research aims to develop eco-friendly bioplastics using starch from ganyong tubers (Canna edulis) as the primary material, combined with cellulose acetate extracted from oil palm empty fruit bunches (EFB) and sorbitol as a plasticizer. The use of plasticizers is expected to enhance the flexibility and permeability of the resulting bioplastics while improving their degradation characteristics. The method used is solution casting. The mixture composition consists of 5 grams of ganyong tuber starch dissolved in 50 ml of water, heated to 75C. Sorbitol was added in 1, 2, 3, 4, and 5 ml, along with cellulose acetate in 1, 1.5, 2, 2.5, and 3 g. Once homogeneous, the mixture volume was 50 ml, poured into a glass mold (20 x 20 cm), dried at 60C for 4 hours. The characteristics of ganyong bioplastics identified i.e water absorption, solubility, and biodegradability. The addition of varying of sorbitol plasticizer and cellulose acetate from EFB significantly affected the water absorption, solubility, and biodegradability of the bioplastics. The optimal water absorption was achieved with the addition of 3 g of cellulose acetate and 2 ml of sorbitol (12.311%), while the best solubility was observed 1 g of cellulose acetate and 4 ml of sorbitol (48.803%). The highest biodegradability was obtained with 1 g of cellulose acetate and 3 ml of sorbitol (96.203%). Therefore, these bioplastics have the potential to serve as a more sustainable alternative to conventional plastics. Keywords: Bioplastic- Characteristics- Ganyong tuber starch- Plasticizer Topic: Agricultural and bioprocess engineering |
| ICGAB 2024 Conference | Conference Management System |