Judul: Pengolahan Ekstrak Kulit Manggis Menggunakan Alat Pengering Drum dan Spray
Abstrak: Mangosteen pericarp part with the highest percentage in the mangosteen fruit and can be developed into a powdered extract of mangosteen peel. The purpose of research is to know the processing of mangosteen peel extract powder using spray and drum dryers, as well as determine the effect of filler maltodextrin concentration on the characteristics of mangosteen peel extract powder. The manufacturing process includes extraction, the addition of filler material, and drying. The next mangosteen peel extract powder active compound tested xanthone and tannin. Test levels of xanthones mangosteen peel extract powder showed that spray drying results with 10% maltodextrin concentration is the highest content of tannin 0.39% and levels of spray drying results with 10% maltodextrin concentration is lowest content of 6.04%. Based on the test results of the active compounds using dryers and filler concentration affects the manufacture of powdered extract of mangosteen peel
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Judul: Optimasi Proses Pengeringan Semprot dan Formulasi Minuman Instan Fungsional Ekstrak Kulit Buah Manggis (Garcinia mangostana L.) dengan Teknologi Effervescent.
Abstrak: Mangosteen (Garcinia mangostana L.) is one of world most famous tropical fruits by its unique flavors and aromas. Newest researches reveal that within the extract of mangosteen pericarp contains many kinds of bioactive compounds. Some researches have proved that the extract of mangosteen rind had beneficial properties such anti-oxidant, anti-microbial, cancer prevention, etc. Considering the advantages, many food product based on the mangosteen extract, especially “ready to drink product” was developed. Nevertheless, there are problems occurs specially dealing with the stability of the product during storage. Consider as watery based product, the bioactive compounds containing within the product are easily degrading during several periods of storage. To solve that stability problem, this research was conducted to give alternative product which is hopefully more stable during storage. The product which was developed in this research was instant based product by using spray drying technology and adopted the one of pharmaceutical drugs form, the effervescent. The main reason effervescent based product was chosen because it can deliver the good acceptance of the product to the consumer especially the one which has not pleasant flavor. The extract of mangosteen it self contains a lot of bioactive compound which is usually well-known by its unpleasant taste. In other words, by using effervescent technology, giving the product it self other advantage such easily self-solving and having a good acceptance because of sparkling sensation. Therefore, the product will be able to be consumed conveniently. Based on the research result, the best condition to spray dry the extract of mangosteen pericarp was by inlet spray dryer temperature 160 oC, outlet temperature 82 ± 2 oC, fluid rate 12.14 ml/minute and added by 15 % of maltodextrin dextrose equivalent 15-20. The powder contain 25,01 ± 5,29 mg/g dry encapsulated extract or 1,13 ± 0,02 mg/g dry matter of anthocyanin, 188,40 ± 0.04 mg/g dry encapsulated extract or 8,9 ± 0,00 mg/g dry matter fenolic compound, and 0,59 ± 0,00 mg/g dry matter of -mangostin, one of most abundant xanthones groups compounds. All this properties are giving a donation to anti-oxidant properties by amount 428.72 ± 1,65 mg equivalent to ascorbic acid/g dry matter.The chosen formulation has composition mangosteen extract powder, aspartame, sodium bicarbonate, citric acid, malic acid, PEG and sorbitol.
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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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