PENGARUH KONSENTRASI PELARUT ETANOL TERHADAP ABSORBANSI BRAZILIN PADA SIMPLISIA KAYU SECANG (Caesalpinia sappan L.) METODE MASERASI

Putri, Umasari Sihmentari, G0C015059 (2018) PENGARUH KONSENTRASI PELARUT ETANOL TERHADAP ABSORBANSI BRAZILIN PADA SIMPLISIA KAYU SECANG (Caesalpinia sappan L.) METODE MASERASI. Sarjana / Sarjana Terapan (S1/D4) thesis, ["eprint_fieldopt_institution_Universitas Muhammadiyah Semarang" not defined].

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Abstract

One of the plants that is widely used in traditional medicine in Indonesia is secang (Caesalpinia sappan L), the part of the plant that is often used by the community is wood. Secang wood contains many chemical active compounds, one of them is brazilin. One way to get brazil is by extraction method. The process of obtaining the maximum dye from the brazilin compound is influenced by the use of solvents. Research on variations in ethanol solvent concentration needs to be done to produce brazilin dyestuffs with maximum absorbance that can be used as natural dyes. The specific objective in this study was to measure the absorbance of brazilin extract by spectrophotometry using a variation of ethanol solvent concentration of 50%v⁄v, 60%v⁄v, 70%v⁄v, 80%v⁄v dan 90%v⁄v and to find out the concentration ethanol solvent is optimal for the maximum absorbance of the brazilin compound in a spectrophotometer. Research that has been carried out is extraction of brazilin compounds in secang wood using maceration method and measurement of absorbance of brazilin compounds using spectrophotometric methods. The average yield of the brazilin compound absorbance at a concentration of 50%v⁄v, 60%v⁄v, 70%v⁄v, 80%v⁄v dan 90%v⁄v respectively was 0.439 A; 0,441 A; 0482 A; 0.525 A and 0.555 A. The lowest average absorbance of the brazilin compound was 50%v⁄v as ethanol solvent, which was 0.439 A and the highest was ethanol solvent with 90%v⁄v concentration of 0.555 A. In conclusion, ethanol solvent concentration affected the absorbance of the brazilian compound , the higher the ethanol solvent concentration, the higher the absorbance of the brazilian compound. Keyword : Secang Wood, Concentration, Maseration, Ethanol Solvent, Spectrophotometry

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