PENETAPAN KADAR FLAVONOID TOTAL EKSTRAK ETANOL JANTUNG PISANG AMBON (Musa paradisiaca var. Sapientum L.) METODE SPEKTROFOTOMETRI UV-Vis

Agatha, Sheila Conyleva (2021) PENETAPAN KADAR FLAVONOID TOTAL EKSTRAK ETANOL JANTUNG PISANG AMBON (Musa paradisiaca var. Sapientum L.) METODE SPEKTROFOTOMETRI UV-Vis. Diploma thesis, Sekolah Tinggi Ilmu Kesehatan Nasional.

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Abstract

ABSTRAK Flavonoid are natural phenolic compounds thatare useful as antioxidants are substance that can slow down or prevent the oxidation process. One of the plants that has antioxidant properties and contains flavonoid is banana. This research aims to determine the total levels of flavonoid from banana flower extract. The extraction used is maceration with 70% ethanol solvent. Qualitative analysis of flavonoids was performed using the Wilstater Cyanidin method, qualitative test with AlCl3 reagent to form complex coumpounds. Quantitative analysis was performed using Visible Spectrophotometry with standard quercetin at a maximum wavelength of 431.0 nm and at an operating time of 20 minutes. The results of the qualitative analysis showed that the extract contained flavonoid positively. The average level of total flavonoids was 8,518 mgQE/ gram of extract with a coefficient pf variation of 0,56%

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