Judul: Studi penambahan garam dapur dan zeolit pada penyimpanan jagung
Abstrak: Penyimpanan perlu dilakukan terhadap komoditi pertanian untuk menjaga ketersediaannya, karena salah satu sifat komoditi pertanian adalah musiman. Dalam penyimpanan, akan terjadi penurunan mutu karena terjadi kerusakan, baik itu kerusakan fisik, kerusakan enzimatis, maupun kerusakan biologis. Kondisi iklim di Indonesia, seperti kelembaban yang relatif tinggi, mendukung bagi proses kerusakan tersebut. Kelembaban yang tinggi ini dapat mengakibatkan meningkatnya kadar air dan air bebas pada bahan. Kadar air dan air bebas yang tinggi ini yang mendukung berlangsungnya proses kerusakan. Bila kadar air dan aktivitas air bahan selama penyimpanan dapat dihambat peningkatannya maka kerusakan-kerusakan yang terjadi dalam penyimpanan dapat menurun. Tujuan penelitian ini adalah untuk melihat apakah pembe- rian zeolit dan garam dapur dapat menghambat kenaikan kadar air dan aktivitas air jagung supaya tetap berada di bawah batas yang aman sehingga kerusakan-kerusakan yang biasa terjadi dalam penyimpanan bisa ditekan. Jagung yang digunakan adalah jagung kuning yang didapat dari daerah Jawa Timur. Zeolit dan garam dapur dibeli di Pasar Bogor. Penelitian ini dilakukan di Laboratorium Industri makanan ternak, Fakultas Peternakan, Institut Pertanian Bogor. Analisa aflatoksin dilakukan di Balai Penelitian Veteriner, Departemen Pertanian Republik Indonesia. Rancangan yang digunakan adalah Rancangan Acak Lengkap. pola faktorial 2 x 3 dengan 3 ulangan. Faktor pertama adalah pemberian garam dengan dua taraf yaitu nol dan satu persen (w/w). Faktor kedua adalah pemberian zeolit dengan tiga taraf pemberian, yaitu nol, setengah, dan satu persen (w/w). Peubah yang diamati meliputi kadar air, aktivitas air, biji jagung yang pecah, serangga hama gudang, kandungan prоtein kasar, dan aflatoksin. Data yang diperoleh dianalisa statistik dengan sidik ragam dan hasil yang berbeda nyata diuji lanjut dengan Uji Beda Nyata Terkecil. ...
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Judul: Efektivitas Penggunaan Bawang Putih dan  Zeolit sebagai Penghambat Kerusakan  Fisik pada Jagung dan Dedak Padi  selama Proses Penyimpanan
Abstrak: The objective of this experiment was to study the effect additive of garlic and zeolite addition on physical damage of corn and rice bran during 8 weeks storage process. This experiment used a completely randomized factorial design (5x4x3), with faktor A was storage periods (0,2,4,6,8 weeks) and faktor B was additive addition (4). The treatments were P0 (corn/rice bran), P1 (P0 + zeolit (1%)), P2 (P0 + garlic (1%)), P3 (P0 + commercial anti mold (0,15%)). The experiment was conducted for 8 weeks and analysed at 0,2,4,6,and 8 weeks of storege periods. Variables observed were moisture, water activity, bulk density, compacted bulk density, energy float, and angle of repose. The data were analysed using Analysis of Variance and the significant result was examined by Duncan’s New Multiple Range. Temperature and humidity during experiment were 27.580 C and 83.79% respectively. The storage periods significantly (P<0.05) increased moisture content (5-7%) and water activity (2.7-8.1%) at rice bran and corn. The addition of additive also decreased energy float (12.4-62.7%), angle of ripose (2.32-6.45), bulk density (6.9-27.9%), and compact bulk density (2.4-9.75%). There was interaction between storage periodes and additive on moisture, angle of ripose and energy float of rice bran, and also on water activity and compact bulk density of corn. In conclusion the addition of zeolit is effective to prevent physical damage in term of keeping moisture content, angle of ripose, energy float for rice bran and compact bulk density for corn, but addition of garlic was not effective to prevent physical damage in corn and rice bran during storage.
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Judul: Posisi Filogenetik Kura-Kura Carettochelys Insculpta  (Reptillia: Testudinata)
Abstrak: Carettochelys insculpta is an endemic freshwater turtle of southern Papua and northern Australia. Phylogenetic position of this turtle is remain unresolved until now. Most of the research conducted show close relationships of C. insculpta and members of Trionychidae family. However, some of the research show distance between C. insculpta and members of Trionychidae family. This research is conducted to analyze phylogenetic relationship between C. insculpta and other members of Testudinata using 12S rRNA, 16S rRNA, and both gene as markers. DNA samples were obtained from three different organisms of C. insculpta. Two species used as outgroups were Alligator mississippiensis and Iguana iguana. Phylogenetic analysis was carried out using Neighbor-Joining method with Felsenstein 1981 (F81) modeltest. A polytomy tree of Testudinata was produced by using 12S rRNA gene. However, analysis using 16S rRNA and both genes as markers confirmed that C. insculpta was located between the Chelonidae and the Trionychidae family.
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