Judul: IPB (Bogor Agricultural University)
Abstrak: Kopi seduh merupakan salah satu jenis minuman yang sangat populer di seluruh dunia karena cita rasa dan aromanya yang khas. Namun, di sisi lain kopi mengandung kafein yang diduga mempunyai efek yang kurang baik bagi kesehatan peminumnya, sehingga berdampak pada menurunnya minat minum kopi dan menurunkan tingkat konsumsi kopi di dalam negeri. Penelitian ini bertujuan untuk mengembangkan proses dekafeinasi kopi dalam reaktor kolom tunggal. Sedangkan secara khusus penelitian ini bertujuan untuk 1) Menentukan pengaruh suhu (60-70°C, 70-80°C dan 80-90°C) pada proses dekafeinasi kopi dalam reaktor kolom tunggal, 2) Menentukan pengaruh ukuran biji (<7.5 mm, 6.5mm–7.5mm), 5.5mm–6.5mm, dan < 5.5mm) pada proses dekafeinasi kopi dalam reaktor kolom tunggal, dan 3) Menentukan pengaruh lama proses pelarutan (2, 4, 6, dan 8 jam) terhadap kandungan kafein kopi biji dan cita rasa minuman kopi. Penelitian dilakukan dalam 2 tahap proses yaitu pengukusan biji kopi dan pelarutan kafein. Hasil penelitian menunjukkan pengembangan volume biji kopi mencapai nilai maksimum 32-38% untuk semua ukuran biji setelah proses pengukusan berlangsung 4 jam, demikian pula kadar air yang meningkat dari 12% menjadi 54-57% setelah proses pengukusan berlangsung selama 4 jam untuk semua ukuran biji.
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Judul: Inovasi Proses Produksi Kopi Bubuk
Abstrak: There are many kinds of processed coffee products that have been developed so far. One of them is ground coffee beans. Coffee drink as a result of ground coffee steeping still leaves leftover. Downsizing the bean size before roasting process was thought to have an effect on several parameters such as essence level and steeping leftover. The objective of this study was to determine the effect of grain size reduction and roasting duration on the formation of steeping leftover with better characteristics and taste. This research was conducted in several stages: downsizing coffee beans, roasting, grinding, proximate analysis and sensory evaluation. The bean size used was compared to the size of whole coffee beans, coffee beans with the size of 2mm-4mm, and coffee bean size of <2mm. The roasting time consisted of 30 minutes, 45 minutes, and 60 minutes at a temperature of about 180ºC - 200ºC. The best interaction occurred between the treatment of bean size reduction to <2mm with a roasting time of 60 minutes. The treatment could reduce the leftover of steeping coffee generally with a water content of 3,4 ± 0,0% db; essence level of 53,7 ± 0,9% db; steeping leftover of 355,2 ± 13,6% db; and a pH of 6,1 ± 0,1. All the parameters have met the ground coffee quality standard of SNI 01-3542-2004.
Keyword: Bogor Agricultural University (IPB), steeping leftover, downsizing, ground coffee, coffee

Judul: Posisi Filogenetik Kura-Kura Carettochelys Insculpta  (Reptillia: Testudinata)
Abstrak: Carettochelys insculpta is an endemic freshwater turtle of southern Papua and northern Australia. Phylogenetic position of this turtle is remain unresolved until now. Most of the research conducted show close relationships of C. insculpta and members of Trionychidae family. However, some of the research show distance between C. insculpta and members of Trionychidae family. This research is conducted to analyze phylogenetic relationship between C. insculpta and other members of Testudinata using 12S rRNA, 16S rRNA, and both gene as markers. DNA samples were obtained from three different organisms of C. insculpta. Two species used as outgroups were Alligator mississippiensis and Iguana iguana. Phylogenetic analysis was carried out using Neighbor-Joining method with Felsenstein 1981 (F81) modeltest. A polytomy tree of Testudinata was produced by using 12S rRNA gene. However, analysis using 16S rRNA and both genes as markers confirmed that C. insculpta was located between the Chelonidae and the Trionychidae family.
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