ANALISA KONSENTRASI TANNIN DALAM TEH HITAM DAN TEH HIJAU MENGGUNAKAN METODE ANALISIS SPEKTOFOTOMETRI VISIBEL (The Analysis of Tannin Concentration in Black Tea and Green Tea Using Visible Spectrofotometri Analysis Method)

Abstract

One of the nutritional problems faced by Indonesia is iron deficiency anemia. It is caused by inadequate intake and absorption. One of the causes of this inadequate absorption is eating habit to consume substances that can inhibit iron absorption like drinking tea while eating. This is caused by tea polyphenol compounds, especially tannins. Black tea and green tea were observed in this research since these are widely consumed by public. Solution of black tea and green tea were used as control and they were treated by giving five drops of 1% FeCl3. Absorbance of those solutions was read by using spectrophotometer UV-Vis. This procedure was done with five times repetition. The result of this research was processed by Based on statistical tests, it was concluded that there is a significant difference between the absorbance of black tea and green tea. Keywords: Black tea, green tea, iron,absorbance. tptisa@gmail.com