Effects of ethanol concentration on the total flavonoids and tannins content of melastoma malabathricum / Nur Syakina Ishak

Ishak, Nur Syakina (2016) Effects of ethanol concentration on the total flavonoids and tannins content of melastoma malabathricum / Nur Syakina Ishak. [Student Project] (Unpublished)

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Abstract

Melastoma malabathricum (Melastomaceae) also known as senduduk among Malaysian is a small shrub with various medicinal uses. Research has been conducted to determine the levels of flavonoids and tannins in leaves of Melastoma
malabathricum using a variation of the concentration of ethanol. Concentration of ethanol used in this research are 30%, 50% and 70%. Levels of flavonoids in the sample
solution were calculated with Catechol Equivalent (CE) while the levels of tannins were calculated with Gallic Acid Equivalent (GAE). The results showed levels of flavonoids in leaves of Melastoma malabathricum with 30%, 50% and 70% ethanol were 0.47 mg CE/g ± 0.19, 0.57 mg CE/g ± 0.19, 70% and 1.68 mg CE/g ± 1.82 respectively. While the levels of tannins in Melastoma malabathricum leaves with
30%, 50% and 70% ethanol were 2.60 mg of GAE/g ± 0.01, 2.23 mg of GAE/g ± 0.14 and 1.28 mg of GAE/g ± 0.01 respectively. This result were significant at p<0.05.
This result will be very helpful as a guidance to choose the best solvent concentration for Melastoma malabathricum extraction.

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Item Type: Student Project
Creators:
Creators
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Ishak, Nur Syakina
UNSPECIFIED
Contributors:
Contribution
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Email / ID Num.
Thesis advisor
Sharif, Amirah
UNSPECIFIED
Subjects: Q Science > Q Science (General) > Study and teaching > Laboratories. General works
Q Science > QD Chemistry > Extraction (Chemistry)
Divisions: Universiti Teknologi MARA, Negeri Sembilan > Kuala Pilah Campus > Faculty of Applied Sciences
Programme: Bachelor of Science (Hons.) Biology
Item ID: 34761
Uncontrolled Keywords: Effects of ethanol concentration on the total flavonoids and tannins content of melastoma malabathricum
URI: https://ir.uitm.edu.my/id/eprint/34761

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