Darni, Yuli and Utami, Herti and septiana, rina and aprilia, riska (2017) Comparative Studies of the Edible Film Based on Low Pectin Methoxyl with Glycerol and Sorbitol Plasticizers. Jurnal bahan alam Terbarukan, 6 (2). pp. 158-167. ISSN ISSN 2303 - 0623
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Abstract
This study aims to compare the characteristics of mechanical and water vapor permeability of edible film based on low pectin methoxyl from cocoa skin with glycerol and sorbitol as plasticizer. In the research also added CaCO 3 filler with the weight variation of 0; 0.2; and 0.4 gr. Pectin from cocoa pe el was isolated by extraction use ammonium oxalic at a temperature of 85 o C, pH of 3.6 for 60 minutes. An edible film synthesized at a temperature of 85 o C to the agitation time of 50 minutes. 200 mesh of pectin used with the variation of glycerol and sorbit ol plasticizer concentration are 1, 2 and 3% in volume. Edible films produced were dried at a temperature of 55 o C for 6 hours. The results of the study obtained in 0.2 gr CaCO 3 concentration and 1% glycerol of edible films has a tensile strength of 0.3267 mpa, percent elongation of 12.84%, modulus young of 2.5441 mpa, and the water vapor permeability of 4.1676 g/m 2 .day. While in 0.4 gr CaCO 3 concentration and 1% sorbitol of edible films has a tensile strength of 6.511 mpa, percent elongation of 2.419%, modu lus young of 269.119 mpa, and the water vapor permeability of 5.583 g/m 2 .day. Based on percent elongation characteristics, glycerol plasticizer made higher elasticity than sorbitol plasticizer. While the addition of filler able to increase tensile strength two times larger than withou
| Item Type: | Article |
|---|---|
| Subjects: | T Technology > TP Chemical technology |
| Divisions: | Fakultas Teknik (FT) > Prodi Teknik Kimia |
| Depositing User: | YULI DARNI |
| Date Deposited: | 08 May 2023 08:44 |
| Last Modified: | 08 May 2023 08:44 |
| URI: | http://repository.lppm.unila.ac.id/id/eprint/6303 |
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