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Chemical compositions and tyrosinase activity of the essential oils of alpinia aquatica

Romes, Nissha Bharrathi and Basar, Norazah and M. Sirat, Hasnah and Hashim, Siti Ernieyanti and Asim, Zaini (2018) Chemical compositions and tyrosinase activity of the essential oils of alpinia aquatica. Natural Product Communications, 13 (6). pp. 787-789. ISSN 1934-578X

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Official URL: https://doi.org/10.1177/1934578X1801300635

Abstract

The essential oils obtained from the fresh rhizome, leaf, and pseudostem of Alpinia aquatica Roscoe. were hydrodistillated and analyzed using capillary gas chromatography (GC) and gas chromatography-mass spectroscopy (GC-MS). β-Pinene (11.7%), α-humulene (8.9%), aromadendrene (8.7%), and sabinene (7.7%) were the major components in the rhizome oil. The most abundant components of the leaf oil were germacrene D (21.3%), β-pinene (15.6%) and sabinene (12.1%), while α-humulene (19.8%), germacrene D (15.2%) and β-caryophyllene (8.7%) were the main constituents in the pseudostem oil. Antityrosinase assay revealed that all the three essential oils exhibited weak tyrosinase inhibition activities. The rhizome oil showed the highest inhibition activity with the value of 9.5% for the L-DOPA oxidation.

Item Type:Article
Uncontrolled Keywords:essential oils, tyrosinase inhibition
Subjects:Q Science > Q Science (General)
Divisions:Science
ID Code:84096
Deposited By: Siti Nor Hashidah Zakaria
Deposited On:16 Dec 2019 01:53
Last Modified:16 Dec 2019 01:53

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