PENETAPAN KADAR FLAVONOID TOTAL EKSTRAK ETANOL KULIT PISANG KEPOK (Musa acuminata x balbisiana) DENGAN METODE SPEKTROFOTOMETRI UV-VIS

Umi, Hasanah (2021) PENETAPAN KADAR FLAVONOID TOTAL EKSTRAK ETANOL KULIT PISANG KEPOK (Musa acuminata x balbisiana) DENGAN METODE SPEKTROFOTOMETRI UV-VIS. Diploma thesis, Sekolah Tinggi Ilmu Kesehatan Nasional.

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Abstract

Flavonoids are polyphenol comfounds which have various activities such as antioxidant, antiviral, antibacterials, and anti-inflammatory. Source of flavonoids can be found in peel of a kepok banana peel. The purpose of this study was to determine the total flavonoid content founds in the kepok banana peel extract (Musa acuminata x balbisiana) by UV-Vis spectrophotometry . Extraction is done using the maceration method with 70% ethanol solvent. The extract which is got is used for and quantitative analysis. Determination of total flavonoid content using a quercetin. The method used in the qualitative analysis of total flavonoid was the NaOH, AlCl3, Wilstater Cyanidin, and TLC. Quantitative analysis with AlCl3 reagent to form complex compounds. The qualitative analysis showed that there were positive flavonoids in the ethanol extract of kepok banana peel. Analysis continued with UV-Vis Spectrophotometry on a operating time at the 28th minute and wavelength of 426,8 nm and. The average total flavonoids content were 6,686 mgQE/g extract with a variation coefficient value of 1,15%.

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