Labib, Ahmad Nauval (2025) KAJIAN BIODEGREDABLE FILM DARI CAMPURAN PATI BIJI NANGKA DAN PATI BIJI ALPUKAT MENGGUNAKAN PLASTICIZER SORBITOL. Undergraduate thesis, UPN Veteran Jawa Timur.
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Abstract
Jackfruit seeds and avocado seeds are often discarded as waste since only the fruit pulp is consumed. However, both types of seeds contain high carbohydrate and starch contents, approximately 56 grams per 100 grams for jackfruit seeds and about 80% of the total content for avocado seeds. These two types of seeds can be used as a polymer-forming network in the production of biodegradable films. This research focuses on obtaining the best biodegradable film based on parameters including tensile strength, percent elongation, thickness, and percent biodegradation, referencing SNI and JIS standards. The study utilized mass ratios of jackfruit seed starch to avocado seed starch at 10:0, 7:3, 5:5, 3:7, and 0:10 grams, with the addition of sorbitol at 10, 11, 12, 13, and 14 ml. The process began with milling the jackfruit and avocado seeds into flour, followed by the preparation of a biofilm solution, which was then molded and dried. The resulting biofilm was analyzed using the ASTM D638 method. Based on the research results, the optimum condition among the tested variables was found at a jackfruit to avocado seed starch ratio of 10:0 grams and the addition of 14 ml of sorbitol. This formulation produced a tensile strength of 36.45 MPa, a percent elongation of 86.16%, a thickness of 0.15 mm, and a biodegradation percentage of 86%. Keywords: Biodegradable Film, Jackfruit Seed, Avocado Seed, Sorbitol, Polymer
| Item Type: | Thesis (Undergraduate) | ||||||||
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| Subjects: | T Technology > TP Chemical technology > TP155 Chemical engineering | ||||||||
| Divisions: | Faculty of Engineering > Departement of Chemical Engineering | ||||||||
| Depositing User: | Ahmad Nauval Labib | ||||||||
| Date Deposited: | 29 May 2026 09:08 | ||||||||
| Last Modified: | 29 May 2026 09:08 | ||||||||
| URI: | https://repository.upnjatim.ac.id/id/eprint/53224 |
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