Penetapan Kadar Flavonoid Total dan Uji Daya Antioksidan Ekstrak Etanol Daun Ungu (Graptophyllum Pictum L.) Griff)
Abstrak: A study concerning
determination of total flavanoid content, and antioxidant activity of ethanolic
extract daun ungu (Graptophyllum pictum (L.) Griff). The purpose of this study
was to determine the levels of total flavonoids and reduction power test of
ethanolic extract daun ungu (Graptophyllum pictum (L.) Griff). Extraction of
chemical constituents from the daun ungu (Graptophyllumpictum (L.) Griff) by
maceration method using ethanol 70%. To determine the levels of flavonoids and
reduction power of the extract samples, then analyzed using a spectrophotometer
UV-Vis compound. The result showed levels of total flavonoids purple leaf
(Graptophyllum pictum (L.) Griff) from a concentration of 2%, 3%, 4%, 5% and
amounted to 6,293 mg/100 g, 7,856 mg/100 g, 8,335 mg/100 g and 8,852 g. In the
determination of reducing power of ethanolic extract daun ungu (Graptophyllum
pictum (L.) Griff) had a reduced ability at 2%, 3%, 4%, 5% concentration and
amounted to 5,65 mg/100 g, 14,73 mg/100 g, 17,70 mg/100 g and 21,60 mg/100 g.
Reduction power ethanol extract of purple leaf was increase with increasing
concentration, the higher concentration have more potent extract reduction
capability.
KATA KUNCI: Flavonoid;
Graptophyllum Pictum (L.) Griff), Extract
Penulis: Haeria
Kode Jurnal: jpfarmasidd130405
