Abstract
Clove flower (Syzygium aromaticum L.) contain saponins, tannins, alkaloids, glycosides and flavonoids. The research aimed to qualitatively and quantitatively determine the existence of tannins in ethanol extract of clove flower by UV-Vis Spectrophotometry. The extraction process used was maceration using ethanol of 30% with the yield value of 4.26%. The extract obtained was measured by UV-Vis Spectrophotometer at the maximum wavelength of 649.9 nm using tanic acid as the standard. The value of the measurement result of tannin content obtained in the ethanol extract of clove flower was 300.826 mg TAE/g extract or 30.0826% b/b TAE.
Highlights
Indonesia merupakan salah satu negara yang dikenal sebagai gudangnya tumbuhan obat
The extract obtained was measured by UV-Vis Spectrophotometer at the maximum wavelength
The value of the measurement result of tannin content obtained in the ethanol extract of clove flower was
Summary
Indonesia merupakan salah satu negara yang dikenal sebagai gudangnya tumbuhan obat. Penelitian tentang khasiat tumbuhan obat Indonesia sudah banyak dilakukan, diantaranya berbagai jenis tumbuh-tumbuhan liar, buah-buahan, sayur-sayuran, tanaman pangan, rempah-rempah (Kusuma dkk, 2005, hh.2-7). Maka berdasarkan penelitian diatas peneliti akan melakukan analisis kadar tanin tanaman bunga cengkeh dengan menggunakan metode spektrofotometri UV-VIS. Serbuk bunga cengkeh (Syzygium aromaticum L.) ditimbang sebanyak 50 gram kemudian direndam dalam 150 mL etanol 30% selama 3 X 24 jam, kemudian disaring untuk mendapatkan filtrat dan residu.
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