Mahreni, Mahreni and Ristianingsih, Yuli and Saefudin, Asep and Aflah, Affifuroyan and Narullita, Annisa Hindun (2021) Bioplastic Production from Eucheuma Cottoni. RSF Conference Series: Engineering and Technology ISSN 2809-6843 (Online) | 2809-6878 (Print), Indonesia. (Unpublished)
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Text (HASIL UJI BIOPLASTIC)
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Abstract
Plastic waste has become a global problem because it causes environmental pollution. This is
because plastic waste is difficult to decompose. There have been numerous solutions proposed,
one of which is the use of bioplastics. In this research, the bioplastics were made from thirdgeneration
biomass, namely the eucheuma cottoni. Eucheuma cottoni is contains biopolymer
carrageenan, a carbohydrate with unit structures consisting of d-galactose and 3,6 anhydro
galactose with glycosidic bonds. Goal this research is study the effects of sorbitol plasticizer
content and bioplastics manufacturing temperature on bioplastics, tensile strength, elongation,
and biodegradation rate. The bioplastics were made by extracting 10 grams of eucheuma
cottoni powder in 200 ml of distilled water. The algae extract was added with sorbitol
(plasticizer) and heated at various temperatures from 45°C until 60°C. The mixture was poured
into a mold tin and dried in the oven to a constant weight. The resulting bioplastics were then
characterized to determine the tensile strength and biodegradation rate. The results showed that
increasing the plasticizer content from 3.5% reduced the tensile strength, however, it increased
the elongation and biodegradation rate. The optimal plasticizer content was 4% with a tensile
strength value of 4.8309 Mpa, elongation of 24.1548%, and biodegradation rate of 26.9392%.
The temperature variable showed that increasing the temperature of making bioplastics could
reduce tensile strength, increase elongation and biodegradation rate of bioplastics. The optimum
temperature for making bioplastics at 45oC obtained a tensile strength of
6.28 Mpa and an elongation of 20.67%. The biodegradation rate was 39.6665%, and the best
sorbitol content was received at 4%.
Keywords: Biodegradable, Bioplastic, Carrageenan, Sorbitol
| Item Type: | Other |
|---|---|
| Subjects: | T Technology > TP Chemical technology |
| Depositing User: | Dr.Ir., MT Mahreni Mahreni |
| Date Deposited: | 25 Jun 2022 06:55 |
| Last Modified: | 30 Mar 2023 00:49 |
| URI: | http://eprints.upnyk.ac.id/id/eprint/30086 |
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