Judul: Aplikasi Teknik Spherification dalam Pembuatan Ravioli Semangka Merah (Citrullus vulgaris Schard)
Abstrak: Watermelon is rich in nutrients and only have little derived products. A new derivate product from watermelon is ravioli. This product can be developed by spherification technique. Spherification is the culinary process that a liquid is thickened with sodium alginate and submerged in a bath of calcium chloride to create spheres and encapsulate the liquid. So, the texture of fruit ravioli is very unique, juicy inside and semi solids outside. This research was aimeds (i) to get the best process condition of producing watermelon ravioli by spherification techniques, (ii) to know the characteristics of the ravioli product, and (iii) to get the best formula. The best product based on the characterization and consumer preference was ravioli that produced from 0.4% of sodium alginat, 0.5% of CaCl2 and 10oBrix glucose solution. The product has 858.33 mg/l suspended solids, 40.00 mg citric acid/100 g ravioli, 20.53 mg ascorbic acid/100 g ravioli, and 6.29% sugar. It was also good aroma, mouthfeel, and also could suppress the rate of ascorbic acid degradation.
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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: Identifikasi jenis-jenis ordo coleoptera koleksi laboratorium hama hutan fakultas kehutanan
Abstrak: Salah satu ordo yang termasuk ke dalam kelas insekta adalah Coleptera. Coleoptera berasal dari kata coleo yang berarti selubung dan petra yang berarti sayap. Nama daerah ordo coleoptera di Indonesia adalah kumbang. Ordo Coleoptera sebagai komponen penyusun ekosistem mempunyai peranan yang penting dalam kehidupan manusia baik merugikan maupun menguntungkan, tergantung pada cara mengelola potensi ordo Coleptera.
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