Judul: Kajian Metode Pengambilan Sampel Air dalam Rangka Analisis Mutu Mikrobiologi Air Baku Industri di PT MNO Gunung Sindur, Nama NIM Bogor
Abstrak: Water is one of the most important needs in human life. In the food industry, water can be used for various activities such as sanitation, production process or even used as raw material for production. Therefore, water used in production should has its own requirements and standards of quality. PT MNO has its own water supply installation to help fulfilling the needs of raw water for production. Raw water used on any production process need to be analyzed its quality either physical, chemical, or microbiology quality. This study attempts to review the water sampling method used in production, in order to determine the microbiological quality of raw water for production process in PT MNO Gunung Sindur, Bogor. The microbiological analysis performed in this study are the calculation of Total Plate Count, yeast and mold content, as well as examination of coliform bacteria and E. coli. The result of microbiological analysis on water samples after sampling method repairment showed that the average microbiology content in the water samples were reduced compared to the analysis results before the repairment done. The statistical result from both data sets that were proceed with paired samples t-test implied that the reduction occurred on the samples taken with additional treatments has not significant yet. It means the repairment of sampling method had not gave a significant effect but has the potential to reduce the effect of external factors that can affect the result of microbiological analysis
Keyword: Bogor Agricultural University (IPB), yeast, water quality, water, mold, Escherichia coli, coliform

Judul: Studi kualitas air dan limbah cair industri tapioka rakyat di daerah Bogor
Abstrak: Penelitian ini bertujuan untuk mengetahui macam dan kualitas, air yang digunakan pada industri tapioka rakyat di daerah Bogor, serta kualitas limbah yang dibuang ke perairan sekitarnya. Pengamatan dilakukan terhadap cara penjernihan air dan sifat fisika-kimia air seperti kadar oksigen, bahan organik, pH, kekeruhan, besi, sulphat dan lain-lain. Sedangkan sifat limbah yang dianalisa adalah temperatur kekeruhan, pH, karbon dioksida, bahan organik, BOD-5, padatan tersuspensi, kadar oksigen, dan asam sianida. Penilaian kualitas air didasarkan kepada standar air minum menurut Peraturan Menteri Kesehatan RI, Sk. Men. Kes. RI. No. 01/BIRHUKMAS/ 1/75. tgl 26 April 1975. Pemakaian standar tersebut disebabkan belum terciptanya standar air untuk industri tapioka dan karena tapioka digunakan sebagai bahan pangan. Penilaian terhadap limbah didasarkan kepada hasil pengukuran beberapa sifat fisika-kimia serta indikator adanya pertumbuhan organisme terutama ikan.
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Judul: Konstruksi Hukum Grup Kurva Eliptik Atas F3m
Abstrak: Elliptic curves upon F3m can be divided in two cases, i.e. supersingular and nonsupersingular case. Based on group laws on elliptic curves, a new arithmetic upon F3m can be formulated as an addition process of two random points on the curve. This addition process can then be applied to the ElGamal algorithm.
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