HILDA GUSVIANNA Primary Author mixed material bibliography Banda Aceh FAKULTAS MATEMATIKA DAN ILMU PENGATUHUAN ALAM UNIVERSITAS SYIAH KUALA 2017 id Indonesia

Skripsi

ABSTRAK Uji aktivitas antioksidan daun Murraya koenigii terhadap radikal bebas DPPH dilakukan dengan metode DPPH (1,1-Diphenyl-2-pycrilhydrazil). Ekstrak etil asetat memiliki aktivitas antioksidan paling kuat dibandingkan dengan ekstrak metanol dan n-heksana secara berturut-turut berdasarkan nilai IC50 yaitu 23; 50,54; dan 64,70 ppm. Dari kromatografi kolom (KK) diperoleh 8 (A-H) sub-fraksi. Sub-fraksi G menunjukan aktifitas antioksidan yang paling kuat mendekati IC50 vitamin C (3,75 ppm) adalah 14,41 ppm. Kata kunci: Murraya koenigii, DPPH (1,1-diphenyl-2-pycrilhydrazil), Antioksidan. ABSTRACT Antioxidant activity test of Murraya koenigii leaves against free radical of DPPH by DPPH (1,1-Diphenyl-2-pycrilhydrazil) method. Ethyl acetate extract has the strongest antioxidant activity compared with the methanol and n-hexane extract based on IC50 values of 23; 50,54; and 64,70 ppm, respectively. Column chromatography (KK) obtained 8 (A-H) sub-fractions. The sub-fraction G shows the strongest antioxidant activity near to value IC50 vitamin C (3,75 ppm) was 14,41 ppm. Keywords: Murraya koenigii, DPPH (1,1-diphenyl-2-pycrilhydrazil), Antioxidant. MEDICINAL PLANTS ORGANIC CHEMISTRY ANTIOXIDANTS - APPLIED NUTRITION 547 ELECTRONIC THESES AND DISSERTATION Universitas Syiah Kuala 35191 2017-10-10 14:24:55 2020-09-23 09:57:53 machine generated