Judul: Estimation of Biomass, Carbon Stock and CO2 Absorption in Various Age Classes of Teak Stands in RPH Wungu, KPH Madiun
Abstrak: Isu pemanasan global yang saat ini terjadi menjadi pemicu diperlukannya informasi mengenai karbon. Salah satu faktor yang dapat menurunkan akumulasi karbon dioksida di atmosfer adalah penyerapan oleh vegetasi. Hutan melalui fotosintesis mengabsorbsi karbon dioksida dan menyimpannya sebagai materi organik dalam bentuk biomassa. Tujuan dari penelitian ini yaitu untuk menduga biomassa, simpanan karbon, serapan karbon dioksida (CO2) dan produksi oksigen (O2) pada berbagai kelas umur tegakan jati (Tectona grandis) di RPH Wungu, KPH Madiun. Metode yang digunakan dalam pengambilan data, menggunakan stratified sampling dengan plot lingkaran berukuran 0,1 ha sebanyak 57 plot. Analisis data pendugaan biomassa menggunakan persamaan alometrik. Biomassa, simpanan karbon, serapan karbon dioksida (CO2) dan produksi oksigen diperoleh dari konversi nilai biomassa. Hasil pendugaan rata-rata biomassa, simpanan karbon, serapan karbon dioksida dan produksi oksigen (O2) pada tegakan jati di RPH Wungu, KPH Madiun secara berurutan adalah 238,60 ton/ha; 112,14 ton/ha; 411,19 ton/ha dan 299,04 ton/ha., The issue of global warming that is currently happening is the trigger for the need for information on carbon. One of the factors that can reduce the accumulation of carbon dioxide in the atmosphere is absorption by vegetation. Forests through photosynthesis absorb carbon dioxide and store it as organic matter in the form of biomass. The study aims to estimate for biomass, carbon stock, carbon dioxide (CO2) absorption and oxygen (O2) production in various age classes of teak stands (Tectona grandis) in RPH Wungu, KPH Madiun. The method used in data collection, using stratified sampling with circular plots measuring 0,1 ha as many as 57 plots. Analysis of biomass estimation data using allometric equations. Biomass, carbon storage, carbon dioxide absorption and oxygen production were obtained from the conversion of biomass values. The results of the estimation for biomass, carbon storage, carbon dioxide (CO2) absorption and oxygen (O2) production in teak stands in RPH Wungu, KPH Madiun, respectively, were 238,60 tons/ha; 112,14 tons/ha; 411,19 tons/ha and 299,04 tons/ha.
Keyword: biomass, carbon stock, carbon dioxide, oxygen, Tectona grandis

Judul: Persamaan Alometrik Biomassa dan Massa Karbon Akar Pohon Jati (Tectona grandis Linn f.) di KPH Balapulang, Kabupaten Tegal, Jawa Tengah
Abstrak: Global warming isa phenomenon where the global temperature is increasing due to the green house effect (GHE) resulted from the increase in GHE emission in the atmosphere. Forests play an important role in climate change issues, especially for absorbing CO2 gas from the atmosphere. Tectona grandis Linn. f, known as jati (teak) in Indonesia, is the kind of wood which economically has a high value and is in high demand. Teak is mostly grown on Java Island; therefore, it is necessary to find out the biomass and carbon mass. The carbon is stored in the stem, branch, twig, leaf, and root. Out of the five parts, the hardest is to estimate biomass and carbon mass in root because it is located in the ground and has unreachable root branches, so that it takes a longer time and much money to count biomass and carbon mass in root. After learning the relation model of alometric equation of biomass and carbon mass in root, it is expected that the model can be used to estimate biomass and carbon mass in a tree without having to dig the root. The equation models of alometric biomass in teak root in this study showed that: the relation between root biomass and total tree biomass above ground was BA= 0,221BT0,936, the relation between root biomass and stem biomass was BA= 0,489BU0,842, and the relation between root biomass and the biomass of branch and twig was BA=1,448BC1,21, therelation between root biomass and leaf biomass was BA= 5,977BD1,25. The equation models of alometric carbon mass in teak root in relation with the carbon mass in the tree parts were as follows: root carbon mass and total tree carbon mass above ground was MA= 0,2033MT0,947, root carbon mass and stem carbon mass was MA= 0,430MB0,853, root carbon mass and the carbon mass of branch and twig was MA= 1,448MC1,22, and root carbon mass and leaf carbon mass was MA= 5,977MD1,28. Based on the models, the best model for estimating teak root biomass was BA= 0,221BT0,936 and the best model for estimating the carbon mass of teak root was MA= 0,2033MT0,947.
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Judul: Purifikasi dan karakteristik imunoglobulin Y (lgY) kuning telur ayam spesifik Salmonelaenteritidis menggunakan metode sodium dedocyl sulphate poly acrilamide gel electrophoresis (SDS-page)
Abstrak: Penelitian ini bertujuan untuk mengetahui karakter berat molekul fragmen-fragmen lgY yang terbentuk dengan menggunakan metode Sodium Dodecyl Sulphate Poly-Acrylamide Gel Electrophoresis (SDS-PAGE). Bahan lgY didapatkan dari kuning telur ayam Single Comb Brown Leghorn berusia 24 minggu. Lima ekor ayam divaksinasi dengan 1 ml (10 CFU) suspensi bakteri Samonella Enteritidis yang telah dilemahkan dan lima ekor ayam yang tidak divaksinasi sebagai kontrol. Penyuntikan dilakukan pada vena Brachialis dengan pengulangan vaksinasi (booster) dilakukan pada minggu ke-2, ke-3 dan ke-4 seolah vaksinasi pertama. Satu minggu setelah vaksinasi terakhir telur dikoleksi dan diuji Agar Gel Presipitation Test (AGPT).
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