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Abstrak :
Biopreservative activities of five fractions of liquid smoke of palm kernel shell had been tested on four bacteria cultures i.e. Escherichia coli, Staphy-lococcus aureus, Bacillus subtilis dan Pseudomanas fluorescens. The purpose of this research were to evaluate activities of liquid smoke of palm kernel shell for the biopreservative on patogenic and spoilage bacteria. This research was started from liquid smoke fractionation of temperature variation...

Abstrak :
Mikroba di alam hidup di dalam matriks biofilm sebagai komunitas dengan karakteristik yang berbeda dari mikroba planktonik. Biofilm adalah habitat dominan mikroba dan memerankan berbagai fungsi penting di ekosistem akuatik, seperti menjadi tempat akumulasi berbagai jenis ion dan terlibat aktif dalam proses sirkulasi nutrien. Berdasarkan peran pentingnya di ekosistem akuatik, biofilm dapat dimanfaatkan dalam pengelolaan lingkungan perairan seperti untuk biomonitoring dan biosorpsi berbagai bahan pencemar seperti logam berat. Buku ini menjelaskan konsep dasar dan memberikan contoh dari aplikasi biofilm sebagai agen biomonitoring dan biosorpsi logam berat. Pembahasan dalarn buku ini menjadi fundamen dalam pengembangan teknologi eko-akuatik berbasis biofilm untuk pengelolaan ekosistem akuatik.

Abstrak :
Proses ekstraksi minyak kelapa dapat dilakukan dengan cara menambahkan suatu inokulum (mikroba) ke dalam larutan santan dan diinkubasi pada suhu kamar. Minyak yang dihasilkan berupa minyak kelapa murni atau disebut juga minyak kelapa ekstrak dingin.

Abstrak :
There is an information how to identify hydrocarbon degrading bacteria for bioremediation of marine oil spill. We have Bioremediation treatment for degradation of oil spill on Pari island and need two kind of experiment there are tanks experiment (sampling 0 to 90 days) and semi enclosed system (sampling 0 to 150 days). Biostimulation with nutrients (N and P) was done to analyze biodegradation of hydrocarbon compounds. Experiment design using fertilizer Super IB and Linstar will stimulate bacteria can degrade oil, n-alkane, and alkane as poly aromatic hydrocarbon. The bacteria communities were monitored and analyzed by Denaturing Gradient Gel Electrophoresis (DGGE) and Clone Library; oil chemistry was analyzed by Gas Chromatography Mass Spectrometry (GCMS). DNA (deoxyribonucleic acid) was extracted from colonies of bacteria and sequence determination of the 16S rDNA was amplified by primers U515f and U1492r. Strains had been sequence and had similarity about 90-99% to their closest taxa by homology Blast search and few of them suspected as new species. The results showed that fertilizers gave a significant effect on alkane, PAH and oil degradation in tanks experiment but not in the field test. Dominant of the specific bacteria on this experiment were Alcanivorax, Marinobacter and Prosthecochloris.