Judul: Bioplastik komposit pati tapioka dan lilin lebah dengan tambahan natrium alginat sebagai pengemulsi
Abstrak: Bioplastic film made of tapioca starch and beeswax with addition of sodium alginate as emulsifier may be a potential alternative for biodegradable packing. The composition of tapioca starch-glycerol was fixed at 8:2. The sodium alginatebeeswax was added at various level, i.e. 19:6, 15:10, 12.5:12.5, 10:15, and 6:19. The films were analyzed for their tensile strength, density, water vapor permeability, morphology, and thermal properties. The film made of 6:19 sodium alginate and beeswax addition showed the lowest water vapor permeability, whereas the film with 19:6 sodium alginate and beeswax addition had the highest density and tensile strength, i.e. 1.5 g/mL and 4.1 MPa, respectively. The film had melting point and weight loss lower as compared to the 6:19 composition, therefore, these characteristic are not corresponding to the density due to in homogeneousity of the film. Morphology analysis showed the surface was rough and less homogeneous.
Keyword: tapioca starch., sodium alginate, glycerol, beeswax

Judul: Pencirian Edible Film Tepung Tapioka Terplastisasi Gliserol dengan Penambahan Natrium Alginat.
Abstrak: Edible film from glycerol plasticized tapioca starch with sodium alginate addition can be a potential alternative as biodegradable packing. In this experiment, glycerol was mixed into tapioca starch solution with tapioca starch-glycerol composition of 7:3 and 8:2. Sodium alginate solution was then added with concentration 0, 1, 2, and 3%. The edible film produced were tested for the density, mechanical properties, functional groups, morphology, and thermal properties. The edible film with 1% sodium alginate addition into 7:3 tapioca-glycerol composition, showed the highest tensile strength and elongation at break, 187.50 MPa and 95.62%, respectively. The edible film did not show new functional group formation, showing that the film was merely a physical mixture. The edible film’s surface was quite homogenous and formed needles-like pattern. Thermal analysis to the 8:2 and 7:3 tapioca starch-glycerol composition with 1% sodium alginate addition showed weight loss approximately 76.58 and 73.92%, respectively, with the glass transition temperature at 108.00 and 109.88 °C. The safe raw material used, and the results of analysis which fulfill led the standards provided evidence that edible film produced was safe for the body and was expected to be consumed after through the toxicity test.
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Judul: Infeksi Virus Parainfluenza Pada Anjing
Abstrak: Virus parainfluenza anjing termasuk famili Paramyxoviridae, berbentuk pleomorf dengan ukuran bervariasi (bergaris tengah antara 100-500 nm), berpembungkus peka ether, berisi genom RNA dan secara serologis mempunyai kesamaan dengan virus SV-5 kera; dikenak sebagai salah satu kausa penting dari sindrom "kennel cough". Infeksinya dapat mengenai anjing semua umur yang belum pernah terinfeksi atau mendapatkan vaksinasi mengakibatkan gejala klinis ringan yang terbatas pada traktus respirasi atu infeksi yang secara klinis tidak memperlihatkan gejala nyata. Gejala klinis yang nampak setelah masa inkubasi (1-5 hari) terlewati berupa batuk yang tidak berat selama beberapa hari, berbagai tingkat tonsilitis dan pharyngitis dan kadang-kadang ditemukan kenaikan temperatur rektal antara 1-2 derajat C dari temperatur normal rat-rata. Anjing terinfeksi mengandung virus pada traktus respirasi bagian atas dan bawah serta limfonoduli sampai hari ke 9 setelah infeksi. Penyebaran virus antar anjing terjadi secara aerogen.
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