Judul: Optimasi Pembuatan Mi Sorgum Menggunakan Ekstruder Pemasak-Pencetak Ulir Tungga
Abstrak: The objectives of this research were optimization of sorghum noodle process using single screw cooking-forming extruder and analyze its consumer acceptance in hedonic test. Variable process in this research were extruder temperature (80-95oC) and screw speed (50-125 rpm). The design experiments and the optimum process determined using Response Surface Methodology (RSM) in Design Expert 7.0. Cooking loss and elongation of cooked sorghum noodles were evaluated. The optimum product was chosen based on minimal cooking loss. Optimum process was gained at extruder temperature was 95oC and screw speed was 125 rpm, produced sorghum noodles with cooking loss 8.95% and elongation 332.4%. Cooked sorghum noodles had a dull colour. Improvement of color and appearance from sorghum noodle have done by adding corn flour and mixed it with sorghum flour. Sorghum noodle and sorghum-corn noodle were evaluated in hedonic test for their colour, turbidity of boiled water, hardness, elongation, dan taste. Sorghum noodles which mixed by corn flour had a better hedonic scale in color and turbidity of boiled water (p<0.05), but hardness, elongation, and taste were not significantly different
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Judul: Formulasi dan Analisis Nilai Gizi Produk Mi Berbasis Sorgum (Sorghum Bicolor (L.) Moench.)
Abstrak: Sorghum as cerealia has many advantages over rice, including phenolic compound that have health potential in human body. This grain has good adaptation to dry and tropical climate that is suitable to grow in Indonesia. The objective of this research was to determine the best formula based on organoleptic (colour, taste, and texture), mineral, dietary fiber, and antioxidant activity analysis results. The initial stage of this research was to find the best formula from extrusion processing. The second stage is organoleptic test by hedonic rating and ranking. Mineral analysis (Ca, Fe, and Zn) by AAS method, dietary fiber analysis, and antioxidant by DPPH method were the last stage of this research. The variables that differentiate between formulas are ratio of sorghum to water (60%, 70% and 80%), temperature of starch gelatinitation (80oC, 90oC, and 100oC), and also frying time (1 minute and 2 minutes). Formulas with 60% ratio of sorghum (milled and unmilled sorghum) have the best quality from extrusion processing. Formula with 60% ratio unmilled sorghum at 1 minute frying has the highest rank from organoleptic test. At 2 minutes frying, formula with 60% ratio milled sorghum has the highest rank. Unmilled sorgum noodle have high dietary fiber, 33% compliance rate of nutrient adequacy, and high amount of Fe and Zn. Milled sorgum noodle also have 28% compliance rate nutrient adequacy of dietary fiber. Antioxidant activity from unmilled sorgum noodle (1.98 ppm AEAC/g product) higher than milled sorgum noodle (1.18 ppm AEAC/g product).
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Judul: Psittacosis Sebagai Zoonosis Penting Yang Berasal Dari Burung
Abstrak: Psittacosis atau ornithosis adalah penyakit menular dari burung kepada manusia. Agens penyebab psittacosis termasuk ke dalam virus psittacosis-lymphogranuloma venereum group yang disebut Chlamydia psittaci. C. psittaci hanya dapat berkembang biak di dalam jaringan hidup tetapi peka terhadap antibiotik. Penyebaran penyakit ini sangat luas, terdapat hampir di seluruh dunia. Di Indonesia penyakit ini belum pernah di diagnosa, tetapi mengingat terdapat demikian banyaknya jenis burung maka diperkirakan psittacosis ini sudah ada. Kasus pada manusia pertamakali ditemukan oleh Ritter pada tahun 1879, di Eropa. Waktu itu dikenal sebagai pneumotyphus. Chlamydia psittaci tidak hanya sebagai penyebab infeksi pada burung, juga bisa menyebabkan infeksi pada mamalia diantaranya sapi, kerbau, kambing, domba, babi dan kucing. Pada kucing dikenal sebagai feline pneumonitis. Pada domba atau kambing mengakibatkan enzootic abortion. Pada burung, kalkun merupakan unggas paling rentan diikuti oleh burung psittacine dan burung lain di luar famili psittacidae. Virulensinyapun berbeda-beda. Yang berasal dari kalkun bervirulensi tinggi, sedangkan yang berasal dari burung merpati bisa bervirulensi tinggi bisa juga bervirulensi rendah. Penularan terjadi melalui kontak langsung maupun ti- dak langsung. Penularan melalui telur tidak terjadi. Umumnya penyakit ini memperlihatkan gejala klinis berupa deman, lesu, lemah, anorexia, kurus, diarrhea ber- warna kekuningan, discharge dari mata dan hidung, conjunc- tivitis. Gejala khas pada kalkun adalah istirahat dengan sternum sebagai dasarnya, karena adanya tekanan dari bagian perut yang sakit. Sedangkan pada manusia memperlihatkan adanya demam, kadang-kadang merasa dingin, lesu, sakit kepala yang hebat, sakit pada bagian belakang badan dan photophobia…dst
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