Judul: Perencanaan Jalur Interpretasi Anggrek di Hutan Wisata Taman Eden, Toba Samosir
Abstrak: This study aimed to develop a general plan of orchids interpretive trail at Eden Park Tourism Forest (EPTF). Data was collected through literature review, interviews, distribution of questionnaires, and field observations. Inventory of the region showed that orchid plants were easily found in all four observation trails, with a total of 51 species from 29 genera. Visitors of EPTF was dominated by male visitors (63%) with majority of age group of 20-30 years (48%). Most visitors (64%) preferred trail 1 as interpretive trail for orchids. Trail 1 was then chosen as the trail to be developed into interpretive trail based on its characteristics suitability for such trails, its orcgids potentials, and visitors preference toward the trail. Planning of interpretive trail included program planning, and supporting facilities planning. The programs were developed under the following themes: Paphiopedilum tonsum orchid is very rare species, so it must be protected for its existence and cultivation is one of the activity for orchid plant preservation.
Keyword: visitor, orchids, interpretive trail, forest, Eden Park Tourism Forest

Judul: Studi perencanaan pengembangan ekowisata di Arboretum PT. Arara Abadi Provinsi Riau
Abstrak: Arboretum of PT. Arara Abadi is one of the conservation area that owned by PT. Arara Abadi. Management of this area has conducted since 1998 to protect sustainability of forest resources and water in surrounding area. Beside that, its can be used for recreation, education and research. This area consist of natural forests that have natural resources and potential for development as ecotourism object. Therefore, study is needed for ecotourism development planning in this area which aims to identify both of supply and demand of this area and to arrange the concept for ecotourism development planning through supply, demand and policy approach. This study was conducted at Arboretum of PT. Arara Abadi, Riau Province from October to November 2009. Data collected in this study consist of tourism resources, facilities, accessibility, management, visitors and local communities. Data collected through questionnaires, observation and literature study. The data were analyzed with descriptive analysis, scoring analysis and SWOT analysis so that arranged strategy and the concept for ecotourism development planning. Supply aspect of this area consist of tourism resources, facilities, accessibility dan local community. Tourism resources includes species diversity of plants and wildlife, scenery and elephant attraction. This area also been equipped with various facilities. The accessibility to area is currently still quite bad. Local community will participate for ecotourism development planning, either actively or passively. Visitors come from various background. The main purpose of visitor is for sightseeing. Visitors asses that tourism resources are categorized as regular-good with the a value of 3.8 (scale 5), facilities are categorized as regular-good with the value of 3.3 (scale 5) and accessibility to this area are categorized as worst-regular with the value of 2.8 (scale 5). The condition of accessibility is the biggest obstacle for visitors. Ecotourism development strategies that could be done at Arboretum of PT. Arara Abadi includes by empowerment of local communities, establish cooperation with relevant parties, promotion, increasing security of this area, improving the management of facilities and accessibility improvements. These strategies can be applied to the concept of ecotourism development planning. There are four concepts that offer ecotourism development planning. Based on tourism supply approach, there is Jungle Exploration concept that made for all visitors from children to adult. Based on tourism demand approach, there are coach tour concept and self-guiding tour concept. For Coach Tour concept, the tour guide are needed to interpretate tourism resources on this area. On the other hand, Self-Guiding Tour concept offer interpretation board and information center for tourist. Based on policy approach, there is Environmental Learning Center concept for student who wants to learn about forest and environment. The last concept is the best concept that could be applied in Arboretum of PT. Arara Abadi because of emphasizing the value of conservation areas and provide benefits to visitors.
Keyword: 

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.
Keyword: