{:en}The Kjeldahl method was introduced a hundred years ago as a method for determining the amount Nitrogen. Later this method has also been known in determining proteins in organic materials; even applied in determining Nitrogen in inorganic materials. This method was initially considered difficult and took a long time. But now, various experiments are applying this method has grown rapidly. One of the most effective, saves money and place, introduced the Protein Analyzer unit consisting of Digester block, Scrubber and Nitrogen Distiller. The Protein Analyzer unit applies the method steps Kjeldahl; destruction using block digester and neutralization and distillation on the Nitrogen unit distiller. Applications with those done

{:en}Tissue regeneration is one of the most important aspects in the recovery of post-operation patients. The method of tissue regeneration has been used since more than 15 years ago, especially in Mouth surgery. At present, a process has been found that can support the formation of fibrin tissue in the tube. One of them is by developing at the physiological stage, without involving the presence of other blood components and without using reagents in extraction tubes. The process / phase is at the time of sample centrifugation. Ortoalresa has developed centrifuge that matches that function, namely Microcen 24. Microcen 24 was developed based on parameters that help regenerate