Identification of Active Compounds of Tantrum Leaves (Indigofera tinctoria) as Natural Textile Dyes

Abstract

This study aims to identify the active compound of Tantrum leaf (Indigofera tinctoria) as a natural textile dye by maceration extraction method with variations in maceration time and material treatment on wet and dry tantrum leaves. The analysis was carried out by phytochemical test, FTIR (Fourier Transform Infrared Spectroscopy), and UV-Vis (Ultraviolet-Visible Light) spectrophotometer. The results of the phytochemical test showed that the compounds contained in the Indigofera tinctoria plant were indigo, flavonoids, steroids, and alkaloids. The FTIR test indicated that the dye content in the extract was from the indigo group. The results of the UV-Vis spectrum showed that there was a maximum absorption of wet tantrum leaf extract, dried tantrum leaf extract, and alkaline extract at wavelengths of 406.50 nm, 365.50 nm, and 664.50 nm, respectively.