Thesis
Published
EFFECT OF DRYING DURATION ON TANNIN LEVELS OF OKRA LEAF TEA (Abelmoschus esculentus [L.] Moench)
Abstract
Background :Tea products are not only produced from tea leaves, but can be
produced from other leaves such as okra leaves. The majority of chemical content in
tea are polyphenolic bioactive compounds, including flavonoids. Flavonoid compounds
are secondary metabolites which have a core structure and are included as polyphenol
compounds because they contain two or more hydroxyl groups. Tannin in the term of tea
was called a catechin. Catechins are the main substance in tea. The aim of the study was
to determine the effect of drying duration on tannin levels of okra leaves (Abelmoschus
esculentus [L.] Moench).Method :The method used was the experimental method using
RAL (Complete Random Design) with three repetitions. Tannin levels were tested using
UV-Vis spectrophotometers and pure tannins as standard curves. Result : The average of
tannin in okra leaf tea showed 2.89 and 3.85. In this study, tannin levels showed that there
was a significant effect of drying duration on tannin levels in okra leaf tea (p 0.00). In the
hedonic test of flavour in samples F1 (30 minutes drying) and F2 (60 minutes drying),
there was no significant difference in each treatment (p 0.542). In the hedonic test of
taste, samples F1 and F2 showed no significant difference in each treatment (p 0.943).The
hedonic quality test results for colours in F1 and F2 show no significant differences in each
treatment (p of 0.870). The hedonic quality test results for flavor in F1 and F2 showed no
significant difference in each treatment (p 0.519). The results of the hedonic quality test on
taste in F1 and F2 showed no significant difference in each treatment (p 0.418).Conclution
: The best temperature used in making okra leaf tea was 500
C. There was significant effect
on tanin level in okra leaf tea (p 0,00) and there were no significant difference for hedonic
test and hedonic quality test.Okra leaf tea with 30 minutes of drying had tannin content of
2.89%, while okra leaf tea with 60 minutes of drying had tannin content of 3.85%.
Publication Details
InstitutionUniversitas Darussalam Gontor
DepartmentFakultas Ilmu Kesehatan
Item ID2345
Deposited27 Mar 2023 07:06