Sirait, Albert (2020) AKTIVITAS ANTIOKSIDAN DAN SKRINING FITOKIMIA FRAKSI KROMATOGRAFI EKSTRAK ETANOL DAUN SARANG BANUA (Clerodendrum fragrans Vent Wild) DENGAN METODE PEREDAMAN DPPH. Undergraduate thesis, UNIMED.
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Abstract
Penelitian ini bertujuan untuk mengisolasi fraksi dari ekstrak etanol daun sarang banua (C. fragrans Vent Willd), skrining fitokimia, dan uji aktivitas antioksidan. Pemurnian ekstrak etanol daun C. fragrans menggunakan kromatografi kolom vakum cair (KVC) dengan fase diam menggunakan silika gel 1.07733.1000 dan fase gerak n-heksan, etil asetat, dan metanol. Uji aktivitas antioksidan fraksi kromatografi ekstrak etanol daun C. fragrans menggunakan metode peredaman radikal bebas DPPH (1,1-difenil-2-pikrilhidrazil). Hasil penelitian menunjukkan bahwa fraksi F2 hasil kromatografi ekstrak etanol daun sarang banua (Clerodendrum fragrans Vent Willd) mempunyai aktivitas antioksidan sangat kuat dengan nilai IC50 26,63 µg/mL. Vitamin C sebagai control positif memiliki nilai IC50 14.15 µg/mL. Hasil skrining fitokimia fraksi F2 menunjukkan adanya senyawa golongan flavonoid dan steroid/terpen.
Item Type: | Thesis (Undergraduate) | ||||||
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Call Number: | SK-2020 KIM 096 | ||||||
Keywords: | Sarang banua; Fraksi kromatografi; Antioksidan; Fitokimia | ||||||
Subjects: | Q Science > QD Chemistry Q Science > QD Chemistry > QD450 Physical and theoretical chemistry |
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Divisions: | Fakultas Matematika dan Ilmu Pengetahuan Alam > Kimia | ||||||
Depositing User: | Mrs Harly Christy Siagian | ||||||
Date Deposited: | 02 Nov 2021 07:25 | ||||||
URI: | http://digilib.unimed.ac.id/id/eprint/43603 |
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