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Studi Pengembangan Sensor BOD Berbasis Rhodotorula Mucilaginosa UICC Y-181

Netra Dewangga; Ivandini Tribidasari Anggraningrum, supervisor; Endang Saefudin, supervisor; Sumi Hudiyono PWS, examiner; Asep Saefumillah, examiner; Ridla Bakri, examiner; Jarnuzi Gunlazuardi, examiner (Fakultas Matematika dan Ilmu Pengetahuan Alam Universitas Indonesia, 2010)

 Abstract

Biosensor untuk penentuan BOD secara amperometrik telah dikembangkan dengan menggabungkan elektroda pengukur oksigen terlarut dengan khamir Rhodotorula mucilaginosa UICC Y - 181 terimobilisasi. Sensor dibuat dari elektroda emas yang dilapisi membran nafion 50 mikron dan biofilm gelatin yang mengandung khamir Rhodotorula mucilaginosa UICC Y - 181 terimobilisasi. Hubungan linear antara respon sensor dan konsentrasi glukosa sebagai larutan standar BOD dalam bufer fosfat pH 7, terlihat dalam rentang antara 10 sampai 70 mg/L, dengan nilai BOD berdasarkan larutan standar glukosa dengan nilai R2= 0,98. Namun respon ini masih lebih rendah dibandingkan dengan pengukuran menggunakan free cell Rhodotorula mucilaginosa UICC Y - 181 yang menghasilkan respon pada rentang 10 sampai 90 mg/L BOD dengan R2= 0,96. Penentuan BOD membutuhkan waktu minimal 5 menit.

Biosensor for amperometric determination of Biochemical Oxygen Demand (BOD) was developed using combination of electrode for oxygen sensor and immobilized Rhodotorula mucilaginosa UICC Y - 181. This sensor made from gold electrode installed with a 50 micron nafion membrane and a gelatin biofilm containing immobilized yeast, Rhodotorula mucilaginosa UICC Y - 181. A linear relationship between the sensor response and the concentration of glucose as standar solution for BOD in phosphate buffer of pH 7, was observed in range 10 to 70 mg/L BOD standard glucose solution with R2= 0,98. This response was still low in comparing to the free cell yeast that show better response in the range 10 to 90 mg/L BOD standard glucose solution with R2= 0,96. The minimal measuring time for BOD determination was 5 minute.

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 Metadata

Collection Type : UI - Tesis Open
Call Number : T29069
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Publishing : Depok: Fakultas Matematika dan Ilmu Pengetahuan Alam Universitas Indonesia, 2010
Cataloguing Source LibUI ind rda
Content Type text
Media Type unmediated ; computer
Carrier Type volume ; online resource
Physical Description xiv, 74 pages : illustration ; 29 cm
Holding Institution Universitas Indonesia
Location Perpustakaan UI, Lantai 3
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Call Number Barcode Number Availability
T29069 15-19-611936999 TERSEDIA
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No review available for this collection: 20279412
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