Judul: Keanekaragaman Jenis dan Nilai Ekonomi Satwa Liar yang Digunakan Sebagai Obat di Jawa Tengah
Abstrak: Indonesia has high biodiversity and endemism, however extinction rate is also high. Excessive harvesting and habitat destruction by human activity were the dominant factor leading to species extinction and biodiversity loss. Most of the people depend on biodiversity as foods, medicine and housing, but sometime they heedless sustainable utilization. This research was aimed to identify wild animal diversity utilized as traditional medicine and its economics value in Central Java. Research was carried out from May to August 2007 in Central Java Province. Information was obtained through semi structured questionnaires applied to 105 respondents from 19 sub-provinces. I recorded 54 animal species utilized in traditional medicine, 42 of which are wild animal species (vertebrates), 10 avertebrates and 2 livestock animals; whose products were recommended for the treatment of 50 types of illnesses. The most frequently quoted treatments were for respiratory system (20 species), skin disease (18 species) and increasing stamina and appetite (14 species). Reptiles (21 species), followed by mammals (11 species) and fishes (4 species) represented the bulk of medicinal species. Medicinal wild animal is not only used for local consumption, but also exported. The economic value of wild animal to human health in Central Java is estimated to reach Rp.1,421,714,004 per year. Excessive harvesting of medicinal wild animal might increase species loss which resulted in extinction. However, if harvest and trade are based on sustainable utilization, it will not only increasing economic benefit but also generate effort for conservation.
Keyword: Species diversity, Economic value, Medicinal wild animal, Central Java, Obat tradisional

Judul: Estimasi Total Nilai Ekonomi Biodiversitas Tumbuhan Obat di Taman Nasional Kerinci Seblat (Studi Kasus: Kawasan Gunung Tujuh, Kerinci Utara, Provinsi Jambi)
Abstrak: Biodiversitas tumbuhan obat adalah jenis tumbuhan yang memiliki khasiat mengobati berbagai macam penyakit, khususnya dimanfaatkan manusia. Tujuan penelitian ini untuk mengidentifikasi tumbuhan yang berpotensi sebagai bahan obat, mengestimasi potensi nilai ekonomi biodiversitas tumbuhan obat, dan mengestimasi total nilai ekonomi biodiversitas tumbuhan obat. Terdapat 327 tumbuhan yang berkhasiat sebagai bahan obat di Kawasan Gunung Tujuh, TNKS. Masyarakat hanya mengetahui 43 manfaat dari 79 tumbuhan obat yang dimanfaatkan sebagai bahan obat. Masyarakat sekitar menggunkan 79 jenis tumbuhan obat dari 327 tumbuhan obat yang ditemukan. Estimasi total nilai ekonomi biodiversitas tumbuhan obat di Kawasan Gunung Tujuh, TNKS Rp 4.444.640.707.576, yang terdiri dari total nilai guna pemanfaat langsung Rp 332.318.182,-, total nilai pilihan Rp 4.444.195.650.000,-, dan total nilai keberadaan Rp 112.739.394,-. Implikasi kebijakan yang diterapakan terhadap pihak-pihak terkait adalah sebagai salah satu bentuk dukungan terhadap kegiatan konservasi dan pelestarian hutan.
Keyword: Biodiversity, Market prices, Non use value, Stated preference methods, Biodiversitas

Judul: Hydroxyapatite-Chitosan Composite Coating on Stainless Steel 316 to Improve Corrosion Resistance
Abstrak: Metals that were used in bone implantation should have good corrosion resistance that were not easily corroded when implanted into the body. Metal corrosion resistance of stainless steel 316 can be enhanced through the metal coating by hydroxyapatite-chitosan composite with composition ratio of hydroxyapatite (gram) and chitosan 3% (mL) 0.2:0, 0.2:0.1, 0.2:0.5, 0.2:1.0, and 0.2:1.5. Besides improving the corrosion resistance of metal, the presence of chitosan also maintain the position of hydroxyapatite on metal surfaces. Corrosion resistance increases with increasing amount of chitosan added and the best composition of hydroxyapatite-chitosan composite was 0.2:1.0.
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