Judul: Pembuatan Crackers Jagung dan Pendugaan Umur Simpannya dengan Pendekatan Kadar Air Kritis
Abstrak: The objective of this research was to make crackers product based on corn flour. This research was divided into two stages; preliminary research and main research. The preliminary research was conducted by production of corn flour and analysis of it’s physical and chemical characters. The main research was conducted by production of crackers through formulation based on corn flour (50% to 100% of the total flour used), analysis of the best formula product, and prediction of it’s shelf life using critical moisture content approach by applying isotherm sorption curve and Labuza's mathematical equation. The production of corn flour from corn kernels resulted 30.8% yield of 120 mesh corn flour. The best crackers product was obtained from a formula of 60% corn flour. Crackers product packaged in metallized plastic and stored at 300C, 75% RH showed the longest shelf life which was equal to 366 days.
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Judul: Formulasi Cookies Jagung dan Pendugaan Umur Simpan Produk dengan Pendekatan Kadar Air Kritis
Abstrak: The best corn cookies resulted from a formula of 80:20 ratio of corn flour to wheat and 18 % of egg, without water addition. The best corn cookies had 4.09 % moisture, 1.06 % ash, 19.76 % fat, 6.19 % protein, 68.91 % carbohydrate, 1.57 % crude fiber, 54.31% total starch, and 487.76 Kal energy value. The product had 88.98 % yield, spread ratio 159.42 %, 2239.39 gf crispiness, 3054.05 gf hardness, 0.19 g/ml bulk density, and 0.41 aw value. The color value of the product was 68.82of L, 10.96 of a, 48.13 of b, and 77.20 of ⁰Hue. Prediction of the product shelf life used 6 equation models. The equation model that was suitable to describe corn cookies sorption isotherm phenomenon was GAB. The GAB model equation was Me = 0.9042aw/ (1-1.0058aw) (1+28.2895aw). Calculation results showed that the shelf life of corn cookies was 9.9 months (298 days) in metalized plastic or 0.7 months (21 days) in polypropylene at 85% RH.
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Judul: Pola Distribusi Penyu Lekang (Lepidochelys olivacea) Berdasarkan Struktur Genetik di Teluk Cendrawasih, Pulau Kapoposang, dan Kupang.Pola Distribusi Penyu Lekang (Lepidochelys olivacea) Berdasarkan Struktur Genetik di Teluk Cendrawasih, Pulau Kapoposang, dan Kupang.
Abstrak: The olive ridley sea turtle (Lepidochelys olivacea) is one species of sea turtles that can be found in Indonesia. The distribution pattern of olive ridley turtle (Lepidochelys olivacea) based on the genetic structure is poorly known. Therefore, this study aimed to determine the distribution pattern of olive ridley sea turtle (Lepidochelys olivacea) based on the genetic structure Mitochondrial. DNA Cytochrome Oxidase 1 (CO1) was used as marker. The distribution pattern indicated that the absence of inter-population genetic structure of olive ridley turtle (Lepidochelys olivacea) between three populations of Cendrawasih Bay, Kapoposang Island, and Kupang (FST=-0.023;P-value=0.462). High genetic diversity was observed in three populations (h=1.00+/-0.04). High gene flow seems influenced by the behavior of turtle migration. The olive ridley turtle migration patterns moving within the Indonesian waters.
Keyword: Lepidochelys olivacea, DNA Barcoding, genetic structure, migration