Uji Aktivitas Antikolesterol Ekstrak Daun Puring (Codiaeum variegatum (L.) Rumph. Ex. A.Juss) Secara In Vitro

Abstract

Abstract
Cholesterol is an essential building material for the body to synthesize important substances such as cell membranes and insulation materials around nerve fiber as well as genital hormones and kidney of vitamin D and bile acids. Puring plants iclusive varieties of flowering plants who most of society interest because have varied colour leaf and have compound secondary metabolic substances of flavonoid, phenolic, triterpenoid, steroid and alkaloids. The purpose of this study was to determine the anticholesterol activity of puring leaves in vitro. The method used in vitro with Lieberman-Burchad reagent using a UV-Vis spectrophotometer measuring device at a wavelength of 665.0 nm. The concentration series used are 100; 200; 300; 400 and 500 ppm. The results showed that at a concentration of 500 ppm it can decrease cholesterol levels by 52.20% and The EC50 value obtained was 449.87 g/mL. The increase in each extract concentration showed an increase in the percent decrease in cholesterol levels.
Keywords: cholesterol; puring leaf; lieberman-burchard

Abstrak
Kolesterol merupakan bahan bangun esensial bagi tubuh untuk sintesis zat-zat penting, seperti membran sel dan bahan isolasi sekitar serat saraf, begitu pula hormon kelamin dan anak ginjal, vitamin D, serta asam empedu. Tanaman puring termasuk jenis tanaman hias yang banyak diminati masyarakat karena memiliki warna daun yang beragam dan memiliki kandungan senyawa metabolit sekunder berupa flavonoid, fenolik, triterpenoid, steroid dan alkaloid. Tujuan penelitian ini untuk mengetahui aktivitas antikolesterol pada daun puring secara in vitro. Metode yang digunakan secara in vitro dengan pereaksi Lieberman-Burchad menggunakan alat pengukur spektrofotometer UV-Vis pada panjang gelombang 665,0 nm. Seri konsentrasi yang digunakan yaitu 100; 200; 300; 400 dan 500 ppm. Hasil penelitian menunjukkan pada konsentrasi 500 ppm dapat menurun kadar kolesterol sebesar 52,20% dan nilai EC50 yang didapatkan sebesar 449,87 µg/mL. Peningkatan setiap konsentrasi ekstrak menunjukan peningkatan persen penurunan kadar kolesterol.
Kata kunci: daun puring; kolesterol; Lieberman-burchard