Judul: Dimensi Tegakan dan Pengaruh Peubah Tempat Tumbuh terhadap Produksi Damar {Shoreajavanica K. et V.) di Krui Lampung Barat.
Abstrak: Pembangunan kehutanan saat ini terus ditingkatkan dan diarahkan untuk menjamin kelangsungan tersedianya produksi hasil hutan, demi kepentingan pembangunan industri, perluasan lapangan kerja dan kesempatan berusaha, tanpa mengabaikan fungsi ekologis hutan. Dimensi tegakan merupakan penduga yang akurat bagi produksi hasil hutan kayu. Namun, untuk menduga produksi hasil getah, perlu kajian lebih ianjut tentang korelasi antara dimensi tegakan dan produksi getah. Beberapa peubah tempat tumbuh diketahui juga memiliki korelasi dengan pertumbuhan dan produksi pohon. Penelitian ini bertujuan untuk mengetahui korelasi antara peubah dimensi tegakan dan peubah tempat tumbuh terhadap produksi Damar Mata Kucing ( Shorea javanica K. et.V.) di Krui Lampung Ba rat. Berdasarkan peubah-peubah yang berkorelasi, kemudian dibuat model penduga produksi damar. Pengambilan contoh di lapangan dilakukan secara sengaja (purposive) yang didasarkan pada ketersebaran petak contoh pada: (1 ). tiga kecamatan di !okasi penelitian, (2). tiga kelas ketinggian tempat, dan (3). lima kelas kelerengan. Analisis yang digunakan untuk menyaring peubah-peubah berkorelasi nyata adalah analisis regresi bertatar (stepwise). Untuk membuat model penduga produksi damar berdasarkan peubah berkorelasi digunakan analisis regresi berganda. dst ...
Keyword: Dammar, Krui, Site factor, and Stand dimension

Judul: The productivity of damar mata kucing tapping on various number and depth of quarre in krui pesisir barat lampung
Abstrak: Pemanfaatan Hasil Hutan Bukan Kayu (HHBK) di kawasan hutan rakyat dapat menambah pendapatan masyarakat sekitar hutan. Masyarakat Desa Gunung Kemala Kecamatan Way Krui Kabupaten Pesisir Barat Lampung menyadap getah damar dari pohon meranti yang menghasilkan Damar Mata Kucing. Penelitian mengenai hubungan antara diameter pohon dengan jumlah koakan dan kedalaman koakan adalah suatu upaya untuk mengetahui produktivitas getah damar yang dihasilkan. Penelitian dilakukan pada areal kebun meranti milik warga dengan populasi 100 pohon contoh meranti pada 4 lokasi yang berbeda. Setiap lokasi diambil 25 pohon contoh berdasarkan kriteria khusus untuk memenuhi tujuan penelitian (Purposive Sampling). Kriteria yang digunakan adalah pohon yang sehat, telah disadap dan memiliki diameter minimal 30 cm. Hasil penelitian menunjukkan bahwa jumlah koakan dan kedalaman koakan mempengaruhi produktivitas getah damar. Bertambahnya diameter batang pohon akan membuat jumlah koakan dan kedalaman koakan semakin meningkat sehingga produktivitas getah pun akan semakin tinggi., Utilization of Non-Timber Forest Products (NTFPs) in the community forest area can add the earnings of the people around the forest. People near Gunung Kemala Village Way Krui District of Pesisir Barat District Lampung sap tap resin from meranti trees producing Damar Mata Kucing. Research on the relationship between number of quarre and quarre depth to tree diameter is an attempt to determine the productivity of gum resin produced. The study was conducted on 100 meranti trees owned by local people in 4 different locations. On each location 25 sample trees were selected based on special criteria to achieve the research objectives (Purposive Sampling). The criterias used, are trees should be healthy, been tapped and has a minimum diameter of 30 cm. The results showed that number and depth of quarre affect the productivity of resin. The increasing diameter of the tree trunk will increase the number and depth of quarre so that the productivity of resin will increase.
Keyword: damar mata kucing, Hasil Hutan Bukan Kayu (HHBK), hutan rakyat

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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