Judul: Pengolahan Fruit Caviar Buah Naga Merah dengan Teknik Cold Oil Spherification
Abstrak: Fruit caviar merupakan produk pangan yang diolah dengan menggunakan teknik cold oil spherification. Teknik cold oil spherification adalah proses pengolahan larutan sari buah dan agar-agar dengan pemanasan dan dilakukan dropping ke dalam minyak dingin. Tujuan dari penelitian ini adalah untuk mendapatkan teknologi proses pengolahan fruit caviar buah naga merah, mendapatkan karakteristik fisik, kimia, dan organoleptiknya serta perubahannya setelah perendaman 24 jam dalam pelarut dan tanpa perendaman. Karakterisasi fruit caviar yang dilakukan adalah kadar air, vitamin C, total gula, dan uji organoleptik. Rancangan percobaan yang digunakan pada penelitian ini adalah Rancangan Acak Lengkap satu faktor (konsentrasi agar-agar 1; 1,5; dan 2%) dan rancangan percobaan Split Plot RAL dengan dua faktor yaitu konsentrasi agaragar (1; 1,5; 2%) dan perendaman selama 24 jam (air mineral, asam sitrat, tanpa perendaman). Analisis uji organoleptik dilakukan dengan pendekatan statistika non-parametrik Kruskal-Wallis. Perlakuan terbaik yang dihasilkan terdapat pada konsentrasi agar-agar 1%. Karakteristik fisik dan kimia pada perlakuan tersebut memiliki nilai tertinggi pada parameter kadar air, vitamin C, dan total gula berturut-turut sebesar 88,15%, 2,53 mg/100 g, 5,11% serta memiliki tingkat penilaian panelis tertinggi terhadap parameter aroma, rasa, dan after taste. Perlakuan tersebut memiliki bentuk bulatan agak padat dan memiliki rasa serta after taste yang manis.
Keyword: buah naga, cold oil spherification, fruit caviar

Judul: Aplikasi Teknik Spherification pada Ekstrak Kulit Buah Manggis
Abstrak: Mangosteen pericarps have active compound is xanthone that serves as an antioxidant. It can made into caviar with spherification techniques. The purpose of this research is to know the characteristics of pericarp and mangosteen pericarp extract, to know about change of sol and caviar chemical composition, to get the best formula caviar, and to get financial analysis efforts caviar. The main raw materials that used are mangosteen pericarp, sodium alginate, calcium chloride, apple vinegar, and water. The characteristics of mangosteen pericarp with water content is 61.90%, protein content is 3.48%, materials content is 1.18%, fiber content is 22.93%, total acid is 4 ml NaOH 0.1 N/g mangosteen pericarp, xanthone content is 1.18 mg/g mangosteen pericarp, and tannin content is 4.55%. The characteristics of mangosteen pericarp extract with xanthone content is 0.87 mg/g mangosteen pericarp extract, tannin content is 3.79%, fiber content is 0.88%, and total acid is 7.76 ml NaOH 0.1 N/g mangosteen pericarp extract. The characteristic sol results obtained range of values xanthone is 0.78-0.85 mg/g sol, the range of the values of tannin is 3.69-3.78%, the range values of fiber content is 12.29-14.21%, and range values of total acid is 3.18-3.98 ml NaOH 0.1 N/g sol. The characteristic caviar results obtained range of values xanthone is 0.76-0.81 mg/g caviar, the range of the value of tannin 3.24-3.75 %, the range of fiber content is 11.06-14.11 %, and range values of total acid is 0.88-1.84 ml NaOH 0.1 N/g caviar. The best formula is A3B2 with xanthone content is 0.81 mg/g caviar, tannin content is 3.75%, fiber content is 13.17%, and total acid is 1.12 ml NaOH 0.1 N/g caviar. Total production cost of cocktail effort is Rp.172 010.91.
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Judul: Asymptotic Distribution of Estimator for the Intensity Function of a Doubly Periodic Poisson Process
Abstrak: In this manuscript, estimation of the intensity function of a doubly periodic Poisson process is discussed. It is assumed that only a single realization of the Poisson process is observed in a bounded window [0,n]. It is also assumed that the period of the intensity function is known. The rate of consistency and asymptotic normality of the estimator are formulated. Finally, a confidence interval for the local intensity function is also formulated.
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