Judul: Sintesis Tetrazola Berbasis Asam Lemak dan Aplikasinya sebagai Inhibitor Korosi
Abstrak: Tetrazola merupakan senyawa yang banyak diaplikasikan pada berbagai bidang, salah satunya sebagai inhibitor korosi. Tetrazola dapat dibuat melalui siklisasi formal [2+3] dari senyawa azida dan nitril. Tujuan dari penelitian ini adalah memperoleh senyawa tetrazola berbasis asam oleat dan mengetahui kinerjanya sebagai inhibitor korosi. Sintesis dilakukan dalam dua tahap: (1) pembentukan nitril melalui reaksi asam lemak dengan urea (2) konversi nitril menjadi senyawa tetrazola dengan penambahan natrium azida dan ZnCl2 sebagai katalis. Hasil sintesis menunjukkan bahwa rendemen menurun dengan adanya ikatan rangkap, sebaliknya %EI meningkat dengan bertambahnya ikatan rangkap pada rantai alkil tetrazola.
Keyword: asam lemak, inhibitor korosi, tetrazola

Judul: Sintesis Tetrazola dari Asam Lemak Minyak Sawit sebagai Inhibitor Korosi.
Abstrak: Tetrazola merupakan senyawa heterosiklis dengan 4 atom nitrogen yang dapat digunakan sebagai inhibitor korosi. Tujuan penelitian ini adalah memperoleh inhibitor korosi melalui konversi asam lemak minyak sawit menjadi senyawaan tetrazola. Minyak sawit dihidrolisis untuk memperoleh campuran asam lemak lalu sebagian dilakukan inklusi urea untuk memperoleh asam lemak fraksi takjenuh. Tetrazola disintesis melalui 2 tahap, yakni pembentukan nitril menggunakan urea yang dilanjutkan dengan konversi nitril menjadi tetrazola menggunakan NaN3 dan ZnCl2 sebagai katalis. Sintesis menghasilkan rendemen total 19-28%. Spektrum inframerah menunjukkan keberadaan puncak NH, NN, dan CN sebagai penyusun tetrazola. Analisis kromatografi gas-spektrometri massa memperlihatkan campuran senyawa tetrazola dari asam oleat dan triazola pada tetrazola campuran asam lemak dan senyawa triazola pada tetrazola fraksi takjenuh. Pengujian inhibisi korosi atas kedua jenis tetrazola memberikan efisiensi inhibisi maksimum hingga 95%. Tetrazola asam lemak campuran menginhibisi korosi lebih optimum, dipengaruhi oleh rantai samping takjenuh dan jumlah heteroatom.
Keyword: asam lemak, inhibitor korosi, minyak sawit, tetrazola

Judul: Teknik penangkaran dan aktivitas harian mambruk victoria (Goura victoria Fraser, 1844) di Mega Bird And Orchid Farm, Bogor Jawa Barat
Abstrak: Victoria crowned pigeon (Goura victoria Fraser, 1844) is one of endemic bird species in Papua, which population had decreased in the natural habitat due to hunting activities. Ex-situ conservation through captive breeding/captivity is an alternative to sustain the bird population. Observation on it’s daily activities in captivity was expected to result in good captivity technique which would enable the preservation of it’s population and restocking of the species in their natural habitat. This research was aimed to study the captivity techniques, identify factors of success, and observe the daily activities of the victoria crowned pigeon. The research was conducted in Mega Bird and Orchid Farm (MBOF) located in Desa Cijujung Tengah, Bogor, West Java on June – July 2011. Instruments used include stationery, stopwatch, camera, interview guide, dry-wet thermometer, and measuring tape. Object of the research was victoria crowned pigeon in MBOF. Data taken during the research included the captivity technique and daily activities of victoria crowned pigeon in MBOF. Data collection methods employed in the research for the captivity technique were direct observation, literature study, and interview, as for the aspects of the daily activities was one-zero sampling method. The cage was classified a permanent maintenance cage with 40 m × 25 m × 5 m dimensions which made from wall, iron with + 5 cm in diameter, and ram wire for roof. Facilities provided in the cage were among other perch place, eating and drinking place, nesting place, and pond. The cage was regularly cleaned twice a day and sprayed with disinfectant once a month. Temperature in the cage was between 25 – 32oC with moist air ranges between 57 – 78%. The type of diseases suffered by the victoria crowned pigeon were CRD (Chronic Respiratory Disease), intestinal worms, and leg swelling. Technique of pairing, laying or hatchery setting, and native enlargement was naturally done by victoria crowned pigeon’s parent. Factors which support the success of captive breeding management in MBOF were (a) location of the cage which away far from noise and human disturbance; (b) the hygiene, safety, and care of the cage; (c) the feeding routine given every morning and evening; (d) provision of medication and vitamins on regular basis to maintain good health and prevent disease from attacking the birds in captivity; and (e) maintenance of genetic purity and avoidance of inbreeding occurenes. Type of behavior that can be used to distinguish the sex of the victoria crowned pigeon was dancing behaviour performed by male individuals.
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