Article Sidebar
Article Details
Submission of a manuscript to this journal is a representation that the manuscript has not been published previously and is not under consideration for publication elsewhere.
All authors named in each manuscript would be required to sign a form (to be supplied by the Editor) so that they may retain their copyright in the article but to assign to us (the Publishers) and its licensees in perpetuity, in all forms, formats and media (whether known or created in the future) to (i) publish, reproduce, distribute, display and store the contribution, (ii) translate the contribution into other languages, create adaptations, reprints, include within collections and create summaries, extracts and/or abstracts of the contribution, (iii) create any other derivative works(s) based on the contribution, (iv) to exploit all subsidiary rights in the contribution, (v) the inclusion of electronic links from the contribution to third party material where-ever it may be located, and (vi) license any thrid party to do any or all of the above.
Main Article Content
Antioxidant Activity of <i>Pandanus amaryllifolius</i> Leaf and Root Extract and its Application in Topical Emulsion
Abstract
Purpose: To develop Thai pandan (Pandanus amaryllifolius) as an antioxidant ingredient for topical emulsion.
Methods: Dried leaf and root of P. amaryllifolius (Pandanceae) were extracted separately by maceration with either ethanol or propylene glycol. Antioxidant capacity was investigated by 2,2-diphenyl-1-picry hydrazyl radical (DPPH) and linoleic acid peroxidation method. The total phenolic
content was measured by Folin-Ciocalteau assay. Oil-in-water topical emulsions containing the individual extracts were prepared and tested for stability.
Results: Propylene glycol extract exhibited higher DPPH activity and total phenolic content than the ethanol extract while the DPPH activity of the leaf extract was higher than that of the root. The 50 % inhibition concentration (IC50) value of leaf and root extracts was 0.810 and 2.340 mg/ml, respectively. Although the antioxidant activity of the crude extracts was lower than that of standard vitamin C and butylated hydroxytoluene (BHT), the ethanol/propylene glycol solution extract (ethanol was reduced to
50 % extract volume) showed higher inhibition (90.1 %) of linoleic acid peroxidation than 200 ppm of vitamin C (57.1 %) and BHT (71.1 %). An oil-in-water emulsion containing 3 % of the ethanol and propylene glycol extract showed creamy texture with medium viscosity and demonstrated good stability under accelerated aging test.
Conclusion: The results indicate a potential for the development of P. amaryllifolius leaf extract as an antioxidant ingredient in topically applied formulations.
Keywords: Pandanus amaryllifolius, Extraction, Antioxidant, Emulsion, Stability.
