Judul: Jenis dan kelimpahan bakteri pada Belut Sawah Monopterus albus kondisi sakit dan sehat di wilayah Jawa Barat
Abstrak: Bakteri adalah salah satu agensia yang mempengaruhi kesehatan pada belut sawah Monopterus albus. Kelimpahan dan diversitas jenis bakteri perlu diketahui untuk mendukung pengembangan teknologi budidaya belut sawah. Penelitian ini bertujuan untuk mengidentifikasi dan menginventarisasi isolat bakteri pada belut sawah Monopterus albus kondisi sakit dan sehat serta membandingkan kelimpahan bakteri berdasarkan 3 stasiun pengambilan sampel di wilayah Jawa Barat yang diwakili oleh Kabupaten Cianjur, Karawang, dan Sukabumi. Bakteri diisolasi kemudian diidentifikasi dengan uji karakterisasi sifat biokimia dan fisiologis serta uji morfologi. Sebanyak 20 jenis bakteri berhasil diidentifikasi dari keseluruhan sampel. Jenis bakteri yang memiliki kelimpahan tertinggi pada belut kondisi sakit asal Cianjur adalah Nocardia sp., jenis bakteri Aeromonas sp. pada belut asal Karawang, dan jenis bakteri Staphylococcus sp. pada belut asal Sukabumi. Jenis bakteri pada belut kondisi sehat yang memiliki kelimpahan tertinggi yaitu Bacillus sp. pada belut asal Cianjur dan Sukabumi, serta Staphylococcus sp. pada belut asal Karawang…
Keyword: Monopterus albus, Rice-field eel, Bacterial species, Bacterial abundance, Belut sawah, Aeromonas Sp., Eels

Judul: Bakteri dan Cacing Parasitik pada Hati dan Saluran Pencernaan Ikan Belut (Monopterus albus
Abstrak: This study aims to identified the bacterial and parasitic worms in the liver and gastrointestinal tract of eels. The identification of isolated bacteria was done by using Gram staining, triple sugar iron agar, citrate, indole and fermentation of sugar. Parasitic worms stained with KOH clove oil for semi-permanent coloring and Semichon's Acetocarmine for permanent staining. Pseudomonas maltophilia, Proteus mirabilis, Pseudomonas aeroginosa, Salmonella sp, and Vibrio cholerae was found in the liver, and Pseudomonas aeroginosa, Salmonella sp., Chromobacterium sp., Enterobacter aerogenes and Vibrio cholerae from the gastrointestinal tract. The results showed that there are two types of parasitic worms in the digestive tract, ie Procamallanus sp., And Acanthocephala sp ..
Keyword: digestive tract, liver, parasitic worms, bacteria, Monopterus albus

Judul: Sintesis dan Pencirian Natrium Titanat (Na2Ti2O4(OH)2) Berbahan Dasar Titanium Dioksida
Abstrak: TiO2 can be utilized as basic material for synthesis of sodium titanate (Na2Ti2O4(OH)2). This research was purposed to synthesize and characterize sodium titanate from TiO2 rutile powder as a basic material. Sodium titanate was synthesized by hydrothermal process at temperature 130 °C by mixing TiO2 rutile powder with 5 M and 10 M NaOH solution, then each was calcinated at temperature 700 °C. The energy dispersive X-ray analysis showed that sodium titanate has been successfully synthesized. This result was also supported by functional group analysis with Fourier transform infrared (FTIR) spectrofotometer showing the existence of Ti-O-Na vibration band at 989.42 cm-1. The formation of sodium titanate was depend on the reaction condition such as temperature, reaction time, and NaOH concentration. Scanning electron microscope image indicated that sodium titanate synthesized at 130 °C in 20 hours reaction time with 10 M NaOH had crystal size of 99.37 nm.
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