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Artikel Jurnal :: Kembali

The development of biochemical oxygen demand sensor using local yeast : candida fukuyamaensis UICC Y-247

Ivandini Tribidasari Anggraningrum, Fenny Triana Zulfia, Endang Saepudin ([Direktorat Riset dan Pengabdian Masyarakat UI;Fakultas Matematika dan Ilmu Pengetahuan Alam Universitas Indonesia;Fakultas Matematika dan Ilmu Pengetahuan Alam Universitas Indonesia;Fakultas Matematika dan Ilmu Pengetahuan Alam Universitas Indonesia, Universitas Indonesia], 2011)

 Abstrak

ABSTRACT
In order to shorten the measurement time of biochemical oxygen demand (BOD), a BOD sensor based on yeast metabolism was developed. Local yeast, Indonesian Origin, Candida fukuyamaensis UICC Y-247, was used as a transducer. The yeast was immobilized as a thin film in ag
arose matrix with the auxiliary of NafionĀ® acting as the membrane for ion exchange process. The film was then attached to gold-modified glassy carbons and used as transducer on the working electrodes. The measurements were conducted by observing the depletion of glucose concentration using multipulse amperometric method and then converte
d to BOD values. Optimum condition was observed in a waiting measurement time of 30 min at an applied potential of 450 mV (vs.
Ag/AgCl). Linearity was shown in glucose concentration range of 0.1?0.5 mM, which was equivalent to BOD concentration range of 10?50 mg/L. A detection limit of 1.13 mg/L BOD could be achieved. Good repeatability was shown by a relative standard deviation (RSD) of
2.7% (n = 15). However, decreasing current response of ~50% was found after 3 days. Comparing to the conventional BOD measurement, this BOD sensor can be used as an alternative method for BOD measurements.

 Metadata

No. Panggil : J-Pdf
Entri utama-Nama orang :
Entri tambahan-Nama orang :
Subjek :
Penerbitan : [Place of publication not identified]: [Direktorat Riset dan Pengabdian Masyarakat UI;Fakultas Matematika dan Ilmu Pengetahuan Alam Universitas Indonesia;Fakultas Matematika dan Ilmu Pengetahuan Alam Universitas Indonesia;Fakultas Matematika dan Ilmu Pengetahuan Alam Universitas Indonesia, Universitas Indonesia], 2011
Sumber Pengatalogan : LibUI eng rda
ISSN : 23391995
Majalah/Jurnal : Makara : Sains
Volume : Vol. 15, No. 1, April 2011: 33-37
Tipe Konten : text
Tipe Media : unmediated
Tipe Carrier : volume
Akses Elektronik : http://journal.ui.ac.id/index.php/science/article/view/874/833
Institusi Pemilik : Universitas Indonesia
Lokasi : Direktorat Riset dan Pengabdian Masyarakat UI
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No. Panggil No. Barkod Ketersediaan
J-Pdf 03-19-047825304 TERSEDIA
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