2015
DOI: 10.33394/hjkk.v3i2.691
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Analisis Fenol Total Teh Hijau Komersial (Camellia sinensis L)

Abstract: Teh (Camellia sinensis L) berpotensi besar sebagai obat dan pengawet bahan pangan karena mengandung zat antioksidan yaitu katekin dan tannin. Kedua senyawa ini merupakan derivat dari flavonoid serta telah dikenal sebagai fenol. Penelitian ini bertujuan untuk mengetahui ada tidaknya fenol dalam produk komersial teh hijau serta mengukur kadar fenol totalnya menggunakan spektofotometer UV-Vis. Sampel yang digunakan adalah 5 macam produk komersial teh hijau yakni (1) Sampel A ; (2) Sampel B ; (3) Sampel C ; (4) Sa… Show more

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“…The value of r = 0.9968 means that 99.68% of the absorbance is influenced by concentration while 0.0032% is influenced by other factors such as temperature, light, chemicals and others. The data shows a correlation relationship between concentration and absorbance, from this graph it can be directly seen that the relationship between concentration and absorbance is directly proportional, meaning that the greater the absorbance, the higher the concentration obtained (Bayani & Mujaddid, 2015). The value of r close to 1 proves that the regression equation is close to linear (Nofita & Dewangga, 2021).…”
Section: Determination Of Tannin Contentmentioning
confidence: 84%
“…The value of r = 0.9968 means that 99.68% of the absorbance is influenced by concentration while 0.0032% is influenced by other factors such as temperature, light, chemicals and others. The data shows a correlation relationship between concentration and absorbance, from this graph it can be directly seen that the relationship between concentration and absorbance is directly proportional, meaning that the greater the absorbance, the higher the concentration obtained (Bayani & Mujaddid, 2015). The value of r close to 1 proves that the regression equation is close to linear (Nofita & Dewangga, 2021).…”
Section: Determination Of Tannin Contentmentioning
confidence: 84%
“…Observation using UV 254 nm and 366 nm. The stains that appear on the standard comparison and herbal medicine are observed for color and calculate the Rf value (Bayani, et. al., 2023., Parawansa, et.…”
Section: Identification Test Using Thin Layer Chromatography (Tlc)mentioning
confidence: 99%