Judul: Potensi dan penyebaran bambu manggong, Gigantochloa manggong Widjaja di Sukamande Taman Nasional Meru Betiri
Abstrak: Taman Nasional Meru Betiri merupakan salah satu dari empat taman nasional yang terletak di Provinsi Jawa Timur. Menurut Departemen Kehutanan RI, Taman Nasional Meru Betiri (TNMB) merupakan perwakilan hutan pantai, hutan mangrove, hutan rawa dan hutan hujan tropika di Jawa. Pemanfaatan bambu oleh masyarakat yang tinggal di sekitar kawasan TNMB cukup besar. Sayangnya pemanfaatan bambu ini terbatas pada jenis-jenis tertentu saja. Pemanfaatan bambu manggong oleh masyarakat secara terus menerus tidak diimbangi dengan upaya pelestarian dan pengembangan. Belum adanya upaya pengembangan dan pelestarian bambu manggong disebabkan karena minimnya informasi mengenai potensi dan karakteristik pertumbuhan bambu tersebut.
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Judul: Bambu Di Taman Nasional Bukit Barisan Selatan
Abstrak: Studi bambu di Taman Nasional Bukit Barisan Selatan bertujuan untuk mengetahui keanekaragaman bambu yang tersebar di Taman Nasional Bukit Barisan Selatan dan mengetahui daerah sebaran dan ekologinya. Penelitian ini didasarkan pada pemeriksaan spesimen koleksi bambu dari Taman Nasional Bukit Barisan Selatan. Spesimen tersebut diperiksa morfologi bagian vegetatif dan generatifnya. Dari spesimen-spesimen tersebut hanya tiga jenis yang mempunyai bunga, sedangkan yang lainnya tidak terdapat bunga. Pengamatan ciri morfologi dilakukan dengan melihat bagian-bagian buluh, tunas, pelepah buluh, daun dan perbungaan. Hasil pengamatan morfologi menunjukkan bahwa ada lima marga dengan 15 jenis bambu yang tumbuh tersebar di kawasan Taman Nasional Bukit Barisan Selatan. Marga - marga tersebut yaitu Bambusa, Dendrocalamus, Dinochloa, Gigantochloa dan Schizostachyum. Dari 15 jenis tersebut, 12 jenis telah dipertelakan oleh beberapa ahli sebelumnya yaitu: Bambusa vulgaris, Dendrocalamus asper, Dendrocalamus buar, Dinochloa glabrescens, Gigantochloa atroviolaceae, Gigantochloa apus, Gigantochloa atter, Gigantochloa hasskarliana, Gigantochloa robusta, Schizostachyum brachycladum, Schizostachyum zollingeri dan Schizostachyum bamban. Tiga jenis merupakan jenis baru dan telah dipertelakan yaitu Gigantochloa ciliata Rumyati, Gigantochloa denticulata Rumyati dan Schizostachyum bracteum Rumyati.....dst
Keyword: Gigantochloa ciliata, Gigantochloa denticulata, Schizostachyum bracteum

Judul: Pemurnian dan karakterisasi protein inhibitor RNA helikase virus hepatitis C
Abstrak: Hepatitis C virus (HCV) infection is the second most common chronic viral infection in the world with global prevalence. This infection is contribution to chronic hepatitis and liver cirrhosis, often leading to hepatocellular carcinoma. There is no effective drug and vaccine available against HCV. The current standard treatment, a combination of pegylated interferon-α with ribavirin, is limited by its suboptimal response rate in a significant patient population, side effects, and affordability. Therefore, development of effective drug is needed. One approach to find out the candidate of antiviral drug is to discover the inhibitor of enzyme that essential for virus replication, such as RNA helicase. Streptomyces chartreusis 5-095 produce the inhibitor of HCV RNA helicase. The aim of this study was to purify the protein inhibitor which has inhibition activity against ATPase activity of RNA helicase HCV from S. chartreusis 5-095. The supernatant of culture S. chartreusis 5-095 exhibited high inhibiton activity against ATPase activity of RNA helicase HCV (approximately 72%) at 10 days of incubation. The extracellular protein inhibitor was partially purified by procedures of precipitation with ammonium sulfate to 65% saturation and gel filtration (Sephadex G50) using methanol water solution (4:6) as an eluen. The purity of protein inhibitor was monitored by SDS PAGE. The protein inhibitor showed a relative molecular mass were estimated to be 14 kDa and increased the purity 23,08 fold than those of the crude protein. The specific activity and IC50 after purification were 13,1338 U/mg and 0,0767 mg/mL, respectively. The activity of purified protein inhibitor showed its stability over pH range from 5-8 and optimum at pH 7,4. The inhibition activity showed its stability up to 70% at temperature 100 oC. The purified protein inhibitor relatively stable its activity at storage in the range of -20 oC to room temperature for 35 days.
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