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Journal

2015 | 60 | 3 | 461-468

Article title

Spin trapping studies of essential oils in lipid systems

Content

Title variants

Languages of publication

EN

Abstracts

EN
In the present work, we report the results of a spin trapping ESR study of four essential oils widely used for skin care products such as creams and bath salts. The studied essential oils are Rosmarini aetheroleum (rosemary), Menthae piperitae aetheroleum (mint), Lavandulae aetheroleum (lavender), and Thymi aetheroleum (thyme). Fenton reaction in the presence of ethanol was used to generate free radicals. The N-tert-butyl-α-phenylnitrone (PBN) was used as a spin trap. In the Fenton reaction, the rosemary oil had the lowest effect on radical adduct formation as compared to the reference Fenton system. Since essential oils are known to be lipid soluble, we also conducted studies of essential oils in Fenton reaction in the presence of lipids. Two model lipids were used, namely 1,2-dioleoyl-sn-glycero-3-phosphocholine (DOPC) and 1,2-dipalmitoyl-sn-glycero-3-phosphocholine (DPPC). The obtained results suggested that in the presence of DOPC lipids, the •OH and PBN/•CHCH3(OH) radicals are formed in both phases, that is, water and lipids, and all the studied essential oils affected the Fenton reaction in a similar way. Whereas, in the DPPC system, the additional type of PBN/X (aN = 16.1 G, aH = 2.9 G) radical adduct was generated. DFT calculations of hyperfine splittings were performed at B3LYP/6-311+G(d,p)/EPR-II level of theory for the set of c-centered PBN adducts in order to identify PBN/X radical.

Publisher

Journal

Year

Volume

60

Issue

3

Pages

461-468

Physical description

Dates

published
1 - 7 - 2015
received
24 - 9 - 2014
accepted
30 - 1 - 2015
online
6 - 8 - 2015

Contributors

  • Department of Physical Chemistry, Faculty of Pharmacy, Medical University of Warsaw, 1 Banacha Str., 02-097 Warsaw, Poland, Tel./Fax: +48 22 572 09 51
  • Department of Physical Chemistry, Faculty of Pharmacy, Medical University of Warsaw, 1 Banacha Str., 02-097 Warsaw, Poland, Tel./Fax: +48 22 572 09 51
author
  • Department of Physical Chemistry, Faculty of Pharmacy, Medical University of Warsaw, 1 Banacha Str., 02-097 Warsaw, Poland, Tel./Fax: +48 22 572 09 51
  • Department of Physical Chemistry, Faculty of Pharmacy, Medical University of Warsaw, 1 Banacha Str., 02-097 Warsaw, Poland, Tel./Fax: +48 22 572 09 51
author
  • Department of Physical Chemistry, Faculty of Pharmacy, Medical University of Warsaw, 1 Banacha Str., 02-097 Warsaw, Poland, Tel./Fax: +48 22 572 09 51

References

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  • 3. Ormancey, X., Sisalli, S., & Coutiere, P. (2001). Formulation of essential oils in functional perfumery. Parfums, Cosmetiques, Actualites, 157, 30–40.
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Document Type

Publication order reference

Identifiers

YADDA identifier

bwmeta1.element.-psjd-doi-10_1515_nuka-2015-0082
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