Cut Yulvizar
Universitas Syiah Kuala

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PENGARUH KONSENTRASI KITOSAN DAN LAMA PENYIMPANAN TERHADAP TOTAL PLATE COUNT (TPC) BAKTERI PADA IKAN KEMBUNG (Rastrelliger sp.) ASIN Ardhana Yulisma; Cut Yulvizar; Edi Rudi
Biologi Edukasi: Jurnal Ilmiah Pendidikan Biologi Vol 4, No 2 (2012): Biologi Edukasi: Jurnal Ilmiah Pendidikan Biologi
Publisher : Universitas Syiah Kuala

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Abstract

This research studied the application of chitosan on salted mackerel (Rastrelliger sp.) preservation during storage at room temperature. The research is aimed to study the effect chitosan concentration and storage time for Total Plate Count (TPC). The study was conducted in Laboratory of Microbiology, Faculty of Mathematics and Natural Sciences, Syiah Kuala University from April to August 2012. The research method was laboratory experimental.  The data was analyzed by Randomized Completely Design with two factorial. The first factor was chitosan concentration (three levels: 0%; 1%; 2%) while the second factor was storage time (four levels: 0; 2; 4; 8 weeks). The results of this study indicated that chitosan concentration was not significantly different for the Total Plate Count (p0,05), however storage time was significantly for the Total Plate Count (p0,05). Futhermore, the interaction chitosan concentration and storage time was significantly for the Total Plate Count (p0,05).
EFEKTIVITAS PENGOLAHAN LIMBAH CAIR DALAM MENURUNKAN KADAR FENOL DI RUMAH SAKIT UMUM DAERAH dr. ZAINOEL ABIDIN (RSUDZA) BANDA ACEH Cut Yulvizar
Biologi Edukasi: Jurnal Ilmiah Pendidikan Biologi Vol 3, No 2 (2011): Biologi Edukasi: Jurnal Ilmiah Pendidikan Biologi
Publisher : Universitas Syiah Kuala

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Abstract

The aims of this research were to determine the effectiveness of waste water processing in reducing content of phenol in RSUDZA. Research was conducted from June to September 2009. This research used 2 locations sampling which consist the tub before processing (inlet) and after processing (outlet), then data taken in 10 repetition consecutive days. The observed parameter ware phenol content and parameter like pH, BOD (Biochemical Oxygen Demand), COD (Chemical Oxygen Demand) dan TSS (Total Suspendid Solid) content. Data were analyzed by using paired t test (P0,05). The result show that fenol content were significant different before and after the processing. Phenol content decreased from 32% to 96.4%. Phenol content (0.020 mg/L) outlet had fulfilled the quality standard already established. These refer as judged effective values the pH parameters show that there were increasing. The result also show that not only phenol content decrease but also BOD, COD and TSS content.