Azzahroh, Amalia (2025) Sintesis Edible Straw dari Pati Talas Kimpul dan Gelatin Ekstrak Kulit Ikan Patin menggunakan Plasticizer Sorbitol. Undergraduate thesis, UPN Veteran Jawa Timur.
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Abstract
The increasing amount of single-use plastic waste, particularly plastic straws, has caused serious environmental pollution. To overcome this issue, this study aims to synthesize environmentally friendly edible straws using taro starch (Colocasia esculenta) and gelatin extracted from catfish skin (Pangasius sp.), with sorbitol as a plasticizer. The research was conducted to evaluate the effect of varying starch–gelatin ratios and sorbitol concentrations on the physical, mechanical, and biodegradable properties of the edible straws. The synthesis process involved gelatin extraction from catfish skin, starch preparation from taro tubers, and film formation through heating, molding, and drying processes. The obtained edible straws were analyzed for thickness, tensile strength, elongation, solubility, and biodegradability, and further characterized using Scanning Electron Microscope (SEM) for surface morphology. The results showed that the combination of taro starch and fish skin gelatin, with sorbitol as a plasticizer, produced edible straws that are biodegradable, flexible, and meet the Japanese Industrial Standard (JIS) criteria for edible films. The optimal composition was found at a balanced starch–gelatin ratio with moderate sorbitol concentration, resulting in good tensile strength and water resistance. This study demonstrates the potential of utilizing local natural materials and fishery by-products to develop sustainable biopolymer-based alternatives to plastic straws. Keywords: Edible straw, taro starch, catfish skin gelatin, sorbitol, biodegradable
| Item Type: | Thesis (Undergraduate) | ||||||||
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| Subjects: | T Technology > TP Chemical technology > TP368 Food processing and manufacture | ||||||||
| Divisions: | Faculty of Engineering > Departement of Chemical Engineering | ||||||||
| Depositing User: | Amalia Azzahroh Azzahroh | ||||||||
| Date Deposited: | 03 Nov 2025 07:23 | ||||||||
| Last Modified: | 03 Nov 2025 07:23 | ||||||||
| URI: | https://repository.upnjatim.ac.id/id/eprint/46040 |
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