Judul: Optimasi Bahan Emulsi dari Minyak Sawit dengan Tiga Jenis Stabilizer dan Uji Mutu Minuman Emulsinya
Abstrak: The objective of this research was to obtain the optimal of emulsified palm oil with three types of stabilizers and to test the quality of emulsion beverage that include hedonic test, physical, and chemical. There were three stabilizers used: CMC, gelatin, and gum arabic. Optimation process used response surface methodology (RSM). This research has two factors of mixture, which were palm oil concentration 30%-70%, and water concentration 30%-70%, and one factor of process which was types of stabilizers. There were two responses in this research: emulsion stability and viscosity. Based on verified optimation result, the consentration of palm oil, water, and stabilizer of gelatin were 70%, 30%, and 0.75% respectively. Then the optimal of emulsified palm oil processed into emulsion beverage with addition of HFS 10% and HFS 15%. The result of hedonic test showed that emulsion beverage with HFS 15% was more liked than its HFS 10%. The result of physical test showed that emulsion beverage HFS 15% were emulsion stability 97% and viscosity 325 cP. The result of chemical test showed that emulsion beverage HFS 15% were moisture 29.7%, ash 0.75%, fat 59.76%, protein 0.65%, carbohydrates 9.85%, and β-carotene 325.79 ppm.
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Judul: Emulsification Process and Cost Analysis of Beverage Emulsion Production of Red Palm Oil
Abstrak: Beverage emulsion of red palm oil is one of the diversification of food products which has the advantage of high pro-vitamin A content. This beverage emulsion is an alternative product in preventing vitamin A deficiency that suffers many children. Beverage emulsion formulations had been studied previously by several researchers. This study was aimed to obtain a proper emulsification process condition and production cost analysis of red palm oil emulsion. In the emulsification process, the variable treatments were rotating speed of homogenizer of 6000 rpm, 8000 rpm, 10000 rpm and homogenization time of 1 minute, 3 minutes and 4 minutes. In the process of pasteurization, the variable treatments were temperature of 70oC, 80o C during 10 minutes and 15 minutes. The parameters observed were the emulsion stability, diameter of emulsion droplet (μm), microstructure and color. The results showed that the homogenizer rotation speed and the homogenization time affected the stability and emulsion droplet size. At rotating speed of homogenizer of 10000 rpm and homogenization time of 3 minutes the emulsion stability was the highest (98,59%) and the emulsion droplet size was the smallest (2,04 μm). Eligibility criteria for investments were the NPV Rp. 1.111.711.032, IRR 38%, the net B/C 1,18. The BEP was 29075 units (bottles) or Rp. 319.819.738.
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Judul: Ornithonyssus Bursa (Berlese, 1888) Famili Macronyssidae yang Menyerang Unggas Dan Penaggulangannnya
Abstrak: Ornithonyssus bursa adalah tungau penghisap darah pada unggas di daerah tropis dan subtropis. Tungau ini relatif kecil, dengan panjang tubuh antara 700-1000 mikron dan lebarnya 250-490 mikron. Tubuhnya bulat berwarna coklat kekuningan sebelum menghisap darh dan berwarna merah setelah menghisap darah dari induk semangnya.
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