Judul: Bioplastic characterization of cassava starch with addition of sodium alginate, cellulose, and limonene
Abstrak: Penggunaan plastik sintetik meningkat setiap tahunnya, namun plastik yang beredar menghasilkan limbah yang sulit terurai sehingga dibuat plastik yang ramah lingkungan. Dalam penelitian ini, bioplastik dibuat dengan paduan tepung singkong dan gliserol dengan nisbah komposisi 75:5 serta beragam konsentrasi natrium alginat, limonena dan selulosa. Bioplastik yang dihasilkan dianalisis bobot jenis, sifat mekanik, permeabilitas uap air, sifat termal, dan morfologi permukaannya. Penggunaan natrium alginat dan selulosa meningkatkan kuat tarik dan bobot jenis. Limonena hasil ekstraksi kulit jeruk meningkatkan elongasi bioplastik dan menurunkan permeabilitas uap air. Analisis termal dengan kalorimeter pemayaran diferensial menghasilkan nilai titik leleh yang meningkat dengan tambahan natrium alginat. Bioplastik yang dihasilkan memiliki morfologi permukaan yang homogen., There is high demand of sintetic plastic production each year, but the use of plastic produces non biodegradable wastes. Therefore, biodegradable plastics can be an alternative solution to overcome the problem in relating with the need of environmentally friendly plastics. Theaim of this study was to characterized bioplastics made of cassava starch with addition of sodium alginate, cellulose, and limonene. Bioplastics were made of composit of cassava starch and gliserol (75:5) and various concentrations of sodium alginate: limonen:celullose. The analysis of density, mechanical properties, thermal analysis, water vapour permeability and morfology were conducted for the biodegradable plastics. The results showed that sodium alginate and celullose increased the tensile strength and density. Limonene extracted from orange peels increased percentage of elongation and the thickness, also decrease the water vapour permeability. Thermal analysis using differential scanning calorimeter showed that sodium alginate addition increased the melting point and it indicated interaction among constituents. The surface morfology of bioplastics composite in thies study showed homogenous character. Keyword: bioplastic, cellulose, limonene, sodium alginate
Keyword: bioplastik, limonena, natrium alginat, selulosa

Judul: Bioplastic composite of tapioca starch plastisized with sorbitol, sodium alginate and limonene
Abstrak: Bioplastik dapat dibuat dari bahan dasar pati dan protein. Bioplastik berbahan dasar pati memiliki keuntungan, yaitu harga yang relatif murah dan mudah didapat dibandingkan protein. Akan tetapi, bioplastik berbahan dasar pati lebih rapuh, sehingga diperlukan bahan tambahan untuk mengatasi kerapuhan. Tujuan penelitian ini adalah membuat dan mencirikan bioplastik komposit dari pati tapioka terplastisasi sorbitol, natrium alginat, dan limonena berdasarkan perbedaan komposisinya. Bioplastik dengan tambahan limonena 2.5% memiliki nilai elongasi, kuat tarik, dan bobot jenis yang lebih tinggi dibandingkan bioplastik dengan tambahan limonena 5.0%, 7.5%, dan 10.0%. Penambahan limonena juga menurunkan nilai permeabilitas uap air. Bioplastik dengan komposisi natrium alginat:limonena:sorbitol (10.0:2.5:7.5) lebih stabil terhadap panas yang ditunjukkan dengan suhu leleh lebih tinggi dibandingkan bioplastik dengan komposisi (7.5:2.5:10.0). Pada analisis morfologi, komponen penyusun bioplastik dengan komposisi (7.5:2.5:10.0) terdistribusi merata pada matriks bioplastik yang didukung dengan terdapatnya puncak suhu leleh tunggal pada termogram., Bioplastic can be made of different sources such as starches and proteins. The benefits of bioplastic starch-based are relatively low cost and easily obtained. The disadvantage of starch-based bioplastic is brittle. In this experiment, sodium alginate, limonene and sorbitol were added to overcome that problem. The objectives of this study are to synthesis and characterize the bioplastic made of tapioca starch plastisized with sorbitol, sodium alginate and limonene based on the various compositions. The addition of limonene 2.5% result in highest elongation, tensile strength, and density as compared to compositions (5.0%, 7.5%, and 10.0%). The addition limonene also decreased water vapour permeability. Bioplastic composition of sodium alginate:limonene:sorbitol (10.0:2.5:7.5) has more heat stability than that of the composition of (7.5:2.5:10.0) which showing a higher melting point. Morphology analysis showed that the bioplastic composition of (7.5:2.5:10.0) distributed evenly on the matrix of bioplastics as supported by a single melting point peak on the thermogram. Keywords: bioplastic, limonene, sodium alginate, sorbitol, starch
Keyword: bioplastik, limonena, natrium alginat, pati, sorbitol

Judul: Manajemen Pemeliharaan Kuda (Equus caballus) Untuk Upacara Kenegaraan Dan Sarana Kesenjataan Di Detasemen Kavaleri Berkuda (DenKavkud) TNI-AD Parongpong
Abstrak: Cavalry Horse Detachement (Denkavkud) Indonesian National Army-Cavalary Parongpong is one of the Indonesian military units that utilize the horse and train it as a means of purpose of formal state ceremony and armed forces. Skills possessed by the horse cavalry was the result of care management and specialized training provided by the trainer. Aspects of care management are breeding, feeding, and management. Horses that are kept in the Denkavkud, Parongpong are stallions, mares, foals, and military horses. Total populations of horses at Denkavkud are 183 horses. Besides commited horse training (remonte), Denkavkud also did breeding program to produce horses that can be trained and used as a military horse. There are some issues contained in Denkavkud, such as some of the nutrients needed by the horses not being met from feed given. One of these is crude protein and lysine. Lactation mares was crude protein and lysine deficiency. The number of death in 2010 is higher than previous years. Based on the number of horses that died from January until June 2010 is 11 horses. The average mortality was caused by colic. Colic is caused by excessive eating, excessive drinking during hot, moldy food, and even by investment roundworms. Animal welfare in Denkavkud can be enhanced by improvement of feed given and improving the health of livestock through improved sanitation.
Keyword: