Judul: Pembentukan Hutan Normal Pada Kelas Perusahaan Jati di Perum Perhutani Unit III Jawa Barat dan Banten
Abstrak: Kayu Jati banyak diminati oleh konsumen dan pengusaha furniture karena sifatnya yang mudah diolah serta mempunyai serat dan warna yang khas. Dengan banyaknya potensi yang dimiliki maka, dalam pengelolaan Hutan Tanaman Jati harus diterapkan azaz kelestarian sebagai landasannya. Tegakan hutan yang tersusun dari kelas-kelas umur yang sama luasnya pada lahan yang homogen merupakan salah satu jaminan untuk memperoleh produksi kayu Jati secara lestari.
Keyword: 

Judul: Kajian Kelestarian Hasil Hutan Kayu Kelas Perusahaan Jati (Tectona grandis L.f.) KPH Saradan Perum Perhutani Unit II Jawa Timur
Abstrak: Pengelolaan hutan dengan tujuan untuk menghasilkan kayu secara lestari atau biasa disebut prinsip kelestarian hasil merupakan syarat terbentuknya hutan normal. Hutan normal adlah tegakan yang mempunyai sebaran kelas umur normal, riap normal dan volume normal. Jika syarat-syarat hutan normal tersebur tidak dapat dipenuhi maka akan terjadi yang namanya overcutting atau undercutting. Namun kenyataannya pengelolaan hutan pengelolaan hutan jati di Pulau Jawa saat ini tidak sesuai dengan konsep hutan normal yang ideal dimana struktur hutannya (kelas umur) tidak ideal. Susunan kelas umur tegakan jati saat ini dikhawatirkan akan mempengaruhi kesinambungan produksi dimasa depan. Penelitian ini bermaksud untuk mengetahui prospek pengelolaan hutan di KPH Saradan yang didasarkan pada prinsip kelsetarian sehingga menjamin kelestarian manfaat dan fungsi hutan, kelestarian perusahaan serta peningkatan kesejahteraan masyarakat. Penelitian ini bertujuan untuk memprediksi struktur kelas hutan produktif dua jangka ke depan, dan kecenderungan produksi kayu jati yang berasal dari tebangan A.2 serta menilai tingkat kelestarian hutan (kelestarian sumberdaya hutan dan le;estarian hasil) dua jangka ke depan
Keyword: 

Judul: DNA Extraction and Characterization of Salmonella‟s Lytic Bacteriophage Genome
Abstrak: Bacteriophages are ubiquitous in nature and are known to proliferate wherever their bacterial hosts exist. Their virion particles can exist independently outside the host, however all phages are need their host to propagate. Several phages are highly specific to host cell surface receptors and any slight changes in structure results in little or no interaction between the phage and its host. Salmonella‟s phage isolated from sewage water where their bacteria exist. Three isolated of phages (phages 15, 19 and 38) were used in this research that concentrated using three types of methods. PEG/ NaCl method was firstly used to concentrate the phages based on their molecular weight to precipitate the phage particles during centrifugation. The second method was Scraping Plaque method. In this method, overlay plaques were scraped and collected in SM buffer to get phage concentrates. Enrichment method was the last method used to concentrate the phages. Phage genome isolation was done using two methods i.e. EDTA/SDS and Proteinase K methods. The first method was done using DNase I to eliminate bacterial DNA followed by SDS/EDTA treatment to release phages DNA and phenol-chloroform-isoamyl alcohol to extract the DNA. DNA was collected by isopropanol extraction. While in Proteinase K method, bacterial DNA was eliminated by DNase I and Proteinase K/SDS was used to degrade phages capsids and ethanol for DNA precipitation. The result showed that PEG/NaCl method resulted the highest phage concentration for phage 15 and phage 19, while scrapping method was the highest for phage 38. The quantity and purity of extracted DNA were low for PEG/NaCl and Scraping methods, while Enrichment method was higher indicated higher purity. Run on agarose gel electrophoresis of extracted DNA confirmed that Enrichment method results were the best while scraping and PEG/NaCl method was appeared smear background. Based on DNA genome size determination, the bacteriphages of Salmonella sp were comparable with other study of Salmonella phages. Phage P15 with genome size of 39,5 kb was close to phage epsilon15. Phage P19 with genome size of 41 kb was close to phage ST160. And phage P38 with genome size of 48,5 kb was close to phage Gifsy-1.
Keyword: