Potensi Ekstrak Kasar Enzim dari Tempe Kedelai Hitam (Glycine soja (L.) Merr.) sebagai Obat Fibrinolitik Alami dengan Metode Clot Lysis In Vitro

Potential of Crude Enzymes from Black Soybean Tempeh (Glycine soja (L.) Merr.) as a Natural Fibrinolytic Medicine with Clot Lysis In Vitro Method

Abstract

Fibrinolytic enzymes are enzymes that can be used to break down fibrin. In thrombus therapy (cardiovascular disease), this enzyme has an activity similar to plasmin, which is able to reduce fibrin by hydrolyzing fibrin into dissolved products and inhibiting the formation of fibrin clots that can trigger cardiovascular disease. Black soybean tempeh has various benefits, one of which is to lower the risk of cardiovascular disease and reduce the risk of blood clots. Due to the content of the enzyme protease in black soybeans which is able to degrade fibrin threads. The purpose of this study is to determine the potential of black soybean tempeh (Glycine soja (L.) Merr) can produce enzyme extracts as natural fibrinolytic drugs. This study was conducted by taking ingredients, crude extraction of enzymes from black soybean tempeh by centrifugation, purification of crude extracts of enzymes using ammonium sulfate salts of 80%, determination of enzyme protein levels with the Lowry method and testing of fibrinolytic potential with the clot lysis method in vitro. The variation in the concentration of the extract used in the test was 12.5; 25; 50 and 100%. The results showed that crude extracts of black soybean tempeh enzymes were able to lyse blood clots. The protein content of the black soybean tempeh extract sample after purification using ammonium sulfate was 245.76 ?g/mL. The optimum percentage of blood clot lysis at a concentration of 100% of the sample after purification was 59%.