STUDI AKTIVITAS ANTIOKSIDAN EKSTRAK DAUN KERSEN (MUNTINGIA CALABURA L.) DENGAN REAGEN 1,1 - DIPHENYL - 2 -PICRYLHYDRAZYL (DPPH)

Situmeang, Robin Tulus Hendrico (2014) STUDI AKTIVITAS ANTIOKSIDAN EKSTRAK DAUN KERSEN (MUNTINGIA CALABURA L.) DENGAN REAGEN 1,1 - DIPHENYL - 2 -PICRYLHYDRAZYL (DPPH). Undergraduate thesis, UNIMED.

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Abstract

Antioksidan merupakan senyawa atau molekul yang dapat mencegah terjadinya proses oksidasi yang disebabkan oleh radikal bebas. Daun kersen (Muntingia Calabura L. ) merupakan salah satu tanaman yang berpotensi sebagai antioksidan alami. Penelitian ini dilakukan untuk mengetahui aktivitas antioksidan dari daun kersen menggunakan reagen DPPH (1,1-Difenyl-2-pikrylhydrazyl) konsentrasi 1mM. Daun kersen dimaserasi dengan pelarut metanol 62,5% dan ekstrak yang dihasilkan diuji kualitatif flavonoidnya. Hasil uji kualitatif flavonoid ekstrak menunjukkan hasil positif mengandung flavonoid. Uji aktivitas antioksidan menggunakan spektrofotometri UV-Vis pada λmaks 517 nm menunjukkan bahwa ekstrak daun kersen memiliki aktivitas antioksidan dengan nilai Inhibition Concentracion (IC50) sebesar 81,7069 ppm, sedangkan BHT sebagai kontrol positif memiliki aktivitas antioksidan dengan nilai IC50 sebesar 103,93 ppm.

Item Type: Thesis (Undergraduate)
Contributors:
ContributionNameNIDN/NIDK
Thesis advisorSilalahi, Albinus195303201980121001
Call Number: 540 Sit s
Keywords: Anti Oksidan; Daun Kersen; Metanol; Uji Kualitatif Flavonoid
Subjects: Q Science > QD Chemistry
Q Science > QD Chemistry > QD415 Biochemistry
Divisions: Fakultas Matematika dan Ilmu Pengetahuan Alam > Kimia
Depositing User: Mrs Desy Sry Yani
Date Deposited: 08 Apr 2016 08:34
URI: http://digilib.unimed.ac.id/id/eprint/11909

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