Judul: Aktivitas Antibakteri Fraksi Kaya-Naringenindari Daun Gude(Cajanuscajan (L.) Millsp.) Terhadap Bakteri Salmonella Thypi
Abstrak: Gude (Cajanus cajan (L.) Millsp.) dikenal sebagai salah satu tanaman obat dan memiliki kandungan senyawa metabolit sekunder, serta berdasarkan kepercayaan masyarakat Kabupaten Bone, Sulawesi Selatan daunnya mampu mengobati penyakit tifus. Sampai saat ini belum ada upaya untuk mengidentifikasi senyawa aktif yang berpotensi menghambat bakteri Salmonella thyphi yang merupakan penyebab penyakit tifus. Oleh karena itu, penelitian ini bertujuan mengidentifikasi senyawa aktif dari daun gude tersebut dan menentukan kemampuan penghambatannya terhadap bakteri S.thypi. Serbuk daun gude diekstraksi dengan metode maserasi menggunakan pelarut metanol (20.30%). Selanjutnya ekstrak metanol diekstraksi cair-cair dan diperoleh fraksi n-heksana, etil asetat dan metanol. Fraksi etil asetat yang positif dalam menghambat bakteri S. thypi selanjutnya dielusi dengan kromatografi kolom gravitasi menggunakan eluen n-heksana dan etil asetat yang kepolarannya ditingkatkan secara bergradien dan diperoleh 70 subfraksi. Subfraksi 1 membentuk kristal kekuningan dan diperoleh 2 noda pada profil kromatografi lapis tipisKLT 1-dimensi dan 2-dimensi yang mengindikasikan kemurnian dari subfraksi tersebut. Identifikasi dengan kromatografi cair spektroskopi massa menunjukkan bahwa subfraksi 1 memiliki m/z 272 dengan fragmentasi stabil pada m/z 271. Senyawa yang memiliki m/z 272 sesuai dengan senyawa naringenin yang merupakan golongan flavanon dengan pola fragmentasi lanjut m/z 271, 177, 151, 119, 107, 93, dan 83. Fraksi kaya-naringenin diuji kemampuan penghambatannya terhadap bakteri S.thypi menggunakan metode Kirby-Bauer dan diperoleh diameter penghambatan 11 mm. Kontrol positif yang digunakan ialah kloramfenikol. Dapat disimpulkan bahwa fraksi kaya-naringenin memiliki kemampuan aktivitas antibakteri dan dapat digunakan untuk mengobati tifus.
Keyword: aktivitas antibakteri, Cajanus cajan, flavanon, Salmonella thypi, tifus

Judul: Isolasi Fraksi Aktif Ekstrak Daun Dandang Gendis (Clinacanthus nutans) Berpotensi sebagai Antibakteri
Abstrak: Ethanol extract of dan dang gendis leaves have been known to be toxic toward Artemia salina brine shrimp. This toxicity property was likely due to the existences of some of its secondary metabolites that have antibacterial properties. Hence, this plant could be used as a substitute of the synthetic drugs usage. The purpose of this study was to find the most active fraction of ethanol extracts of dandang gendis leaves as a potential antibacterial and to determine the group of the active compound. The ethanol extract was fractionated using flash chromatography with silica gel as the stationary phase and ethyl acetate: n-hexane (8:2) as the 1110bile phase resulted in total of four fractions (fraction I to 4). Then the capability of those fractions, to inhibit the growth of two types of bacteria, Escherichia coli and Staphylococcus aZlreliS was tested. Fractions I with concentration of 1000 ppm had the largest inhibitory zone with the area of 4.17 and 7 mm in diameter when it was tested on E. coli and S. aureus respectively. The formation of inhibitory zone showed that fraction I of the ethanol extract of danclang gendis to have a weak antibacterial effect toward E. coli and moderate effect (5-10 Illm) on S. aureus. Based on the phytochemical assay, fraction 1 showed positive result on steroid and flavonoid tests
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Judul: Pengembangan distribusi ILOS multimedia (ILOSmedia)
Abstrak: The development of open source softwares is still going rapidly nowadays, including open source operating systems for desktop computer, netbook, tablet PC, and smartphone. The open source operating systems have considerable contribution to open source software. Linux is an open source operating system that continues to grow since 1991. The characteristics in general Linux are free, can be distributed freely, and free to make changes in it. Linux in its development is divided into several distributions. Each distribution is made as a specific goal so that the operating system can focus on running the desired functions, such as multimedia, networking, education, etc. The objective of of this research is to develop and evaluate the ILOS distribution for multimedia by providing multimedia of open source packages. ILOSmedia uses Ubuntu10.10 and Remastersys as a tool to remaster. ILOSmedia is developed by installing multimedia packages that have been obtained based on the results of questionnaires from 30 respondents from three communities, which are KPLI Bogor, Linux.com forums, and Kaskus.us forums. ILOSmedia also uses the Realtime kernel as kernal Mutimedia. ILOSmedia testing is performed by 11 students of Computer Science who are members of FOKERZ community. The testing process is performed by executing ILOSmedia via live-cd and filled in a questionnaire. The test result shows that ILOSmedia has hardware compatibility on notebook and PC with good performance. As much as 72.727% of respondents believe that the size of the installer ILOSmedia of 1.34 GB and a minimum 10GB hard drive is normal. ILOSmedia has multimedia packages complete with the percentage completeness according to respondents is 45.455% are very complete and 54.545% are complete. Boot speed ILOSmedia have an average of 28.87 seconds and 90.91% of respondents consider that ILOSmedia have a desktop environment that is easy navigation
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