UJI BIODEGRADASI POLYETHYLENE TEREPHTHALATE (PET) OLEH BAKTERI TERMOFILIK YANG DIISOLASI DARI SUMBER AIR PANAS BUKIK KILI, SOLOK, SUMATERA BARAT

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dc.contributor.authorSianipar, Evlin Magdalena
dc.contributor.supervisorAwaluddin, Amir
dc.contributor.supervisorSaryono, Saryono
dc.date.accessioned2022-12-15T06:52:50Z
dc.date.available2022-12-15T06:52:50Z
dc.date.issued2022-08
dc.description.abstractBiodegradation is one of the strategies for the handling of PET bottle waste by involving the activity of microorganisms, such as bacteria. In this study, the thermophilic bacteria LBKURCC191, 192, 193, 194, 195 and 196, which have been isolated from hot springs of Bukik Kili, Solok-Sumatera Barat, acts as degrading agents for PET bottles. The six bacteria isolates were tested for their ability to degrade mineral water bottles “Le Minerale” using the solid fermentation method for four weeks. LBKURCC191 (Bacillus sp) was isolate with the highest percentage of PET weight loss. These bacteria were able to degrade PET up to 0,620% on NA media and 0,443% on MSM media. SEM analysis on PET incubated with LBKURCC191 bacteria showed changes of surface structure to become rough, bumpy and uneven due to enzyme activity by bacteria during incubation. FTIR analysis showed shifting of wavenumber to a lower value in the absorption of ester, alcohol and C-H aliphatic, so the bond length increased and bond strength decreased. This fact shows the stretching of the bonds on several functional groups in the PET structure due to the activity enzymes produced by bacteria for degradation.en_US
dc.description.sponsorshipFakultas Matematika dan Ilmu Pengetahuan Alam, Universitas Riauen_US
dc.identifier.citationPerpustakaanen_US
dc.identifier.otherElfitra
dc.identifier.urihttps://repository.unri.ac.id/handle/123456789/10788
dc.language.isoenen_US
dc.publisherElfitraen_US
dc.subjectBiodegradationen_US
dc.subjectenzymeen_US
dc.subjectPETen_US
dc.titleUJI BIODEGRADASI POLYETHYLENE TEREPHTHALATE (PET) OLEH BAKTERI TERMOFILIK YANG DIISOLASI DARI SUMBER AIR PANAS BUKIK KILI, SOLOK, SUMATERA BARATen_US
dc.typeArticleen_US

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