Isolasi dan Screening Khamir Laut Pendegradasi High Density Polyethylene (HDPE) dari Kawasan Pantai di Banyuwangi, Surabaya dan Gresik

Sari, Rosi Yulia Karinda (2021) Isolasi dan Screening Khamir Laut Pendegradasi High Density Polyethylene (HDPE) dari Kawasan Pantai di Banyuwangi, Surabaya dan Gresik. Undergraduate thesis, Institut Teknologi Sepuluh Nopember.

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Abstract

HDPE (High Density Polyethylene) merupakan termoplastik polyethylene yang diproduksi dengan proses katalitik dan memiliki sedikit percabangan. HDPE memiliki kekuatan antarmolekul yang lebih kuat dan daya tarik yang lebih besar daripada LDPE (Low Density Polyethylene). Hal ini yang menyebabkan mikroorganisme sulit untuk mengakses rantai polimer. Dampak dari penggunaan HDPE secara intensif dapat menimbulkan ancaman bagi lingkungan, karena umumnya produk yang berasal dari HDPE sulit terdegradasi. Biodegradasi merupakan proses dimana mikroorganisme mampu memecah polimer alami dan polimer sintetis (seperti polietilen dan polistiren). Penelitian ini bertujuan untuk eksplorasi khamir laut dari berbagai kawasan pantai di pantai Banyuwangi, Surabaya dan Gresik dalam mendegradasi HDPE. Uji biodegradasi dilakukan selama 30 hari pada Mineral Salt Medium Broth (MSMB) dengan potongan plastik HDPE. Parameter hasil biodegradasi meliputi penurunan berat kering plastik (%) dan jumlah khamir (CFU/ml).Hasil penelitian memperoleh 4 isolat yang berpotensi dalam mendegradasi HDPE dari kawasan pantai.
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HDPE (High Density Polyethylene) is a polyethylene thermoplastic which is produced by a catalytic process and has little branching. HDPE has stronger intermolecular strength and greater tensile strength than LDPE (Low Density Polyethylene). This makes difficult for microorganisms to access the polymer chain. The impact of using HDPE intensively can pose a threat to the environment, because almost products derived from HDPE are difficult to degrade. Biodegradation is a process by which microorganisms are able to break down natural polymers and synthetic polymers (such as polyethylene and polystyrene). This study aims to explore marine yeast from various coastal areas on the coast of Banyuwangi, Surabaya and Gresik in degrading HDPE. The biodegradation test was carried out for 30 days on Mineral Salt Medium Broth (MSMB) with HDPE plastic pieces. Parameters of biodegradation results include dry weight plastic (%) and the amount of yeast (CFU/ml). The results obtained 4 isolates that have the potential to degrade HDPE from coastal areas.

Item Type:	Thesis (Undergraduate)
Uncontrolled Keywords:	Biodegradasi, Candida, HDPE, Khamir laut, Biodegradation, Candida, HDPE, Marine yeast
Subjects:	Q Science > QH Biology > QH301 Biology Q Science > QP Physiology > QP517.B5 Biodegradation. Q Science > QR Microbiology
Divisions:	Faculty of Science and Data Analytics (SCIENTICS) > Biology > 46201-(S1) Undergraduate Thesis
Depositing User:	Rosi Yulia Karinda Sari
Date Deposited:	04 Aug 2021 08:02
Last Modified:	04 Aug 2021 08:02
URI:	http://repository.its.ac.id/id/eprint/84821

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