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dc.contributor.advisorPriyani, Nunuk
dc.contributor.advisorMunir, Erman
dc.contributor.authorHarefa, Rasmin Setia Murni
dc.date.accessioned2019-05-23T04:58:01Z
dc.date.available2019-05-23T04:58:01Z
dc.date.issued2016
dc.identifier.urihttp://repositori.usu.ac.id/handle/123456789/14749
dc.description.abstractPenggunaan plastik berjenis low density polyethylene (LDPE) terus meningkat setiap tahun. Plastik sangat sulit terdegradasi secara alami sehingga menyebabkan pencemaran lingkungan dan terancamnya ekosistem. Upaya untuk mendapatkan isolat jamur potensial dalam mendegradasi plastik telah dilakukan. Jamur diisolasi dari TPA Namo Bintang, Medan Tuntungan dan diperoleh dua isolat jamur, yaitu RH03 dan RH06 berdasarkan respon pertumbuhannya pada Mineral Salt Medium Brooth (MSMB) yang mengandung serbuk LDPE. Berdasarkan karakteristik morfologi, kedua isolat jamur diduga sebagai Aspergillus sp. Uji kemampuan mendegradasi lembaran LDPE selama 45 hari menunjukkan isolat RH03 dan RH06 mampu menurunkan bobot LDPE masing-masing sebesar 5,13% dan 6,63% dan daya tarik (tensile strength) menurun hingga 58% dan 40%. Fotomikrograf SEM setelah perlakuan menunjukkan perubahan pada permukaan lembaran LDPE yang menjadi kasar, terbentuknya lekukan-lekukan, dan adanya spora jamur pada permukaan LDPE.en_US
dc.description.abstractThe use of plastic low density polyethylene (LDPE) has been increasing every year. Plastic is naturally recalcitrant causing environmental pollution and endangers the ecosystems. An effort to get fungal isolate which are potential to degrade plastic has been conducted. Fungi were isolated from Namo Bintang dump site at Medan Tuntungan. It was obtained two fungal isolates RH03 and RH06 based on their ability to grow on Mineral Salt Medium Brooth (MSMB) containing of LDPE powder. Based on morphological characteristic, two fungal isolate were assumed as Aspergillus sp. The ability test to degrade LDPE sheets for 45 days showed RH03 and RH06 were able to reduce the weight of LDPE by 5,13% and 6,63% and tensile strength reduced up to 58% and 40%. SEM photomicrograph of LDPE showed surface changes into rough, groove, and some fungal spore were noticed.en_US
dc.language.isoiden_US
dc.publisherUniversitas Sumatera Utaraen_US
dc.subjectBiodegradasien_US
dc.subjectLow density polyethylene (LDPE)en_US
dc.subjectTempat Pembuangan Akhir (TPA)en_US
dc.titleAnalisis Drug Related Problems (Drps) pada Pasien Gagal Ginjal Kronik di Ruang Interna Wanita Rsup H. Adam Malik Medan Periode September – November 2015en_US
dc.typeThesisen_US
dc.identifier.nimNIM110805066
dc.description.pages56 halamanen_US
dc.description.typeSkripsi Sarjanaen_US


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