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2012 | 58 | 4 |
Tytuł artykułu

Determination of essential oil composition by GC-MS and integral antioxidant capacity using photochemiluminescence assay of two Thymus leaves: Thymus syriacus and Thymus cilicicus from different Syrian locations

Treść / Zawartość
Warianty tytułu
PL
Określenie składu olejku eterycznego za pomocą GC-MS oraz łącznej zdolności antyoksydacyjnej metodą fotochemoluminescencyjną w liściach Thymus syriacus i Thymus cilicicus rosnących w różnych miejscach w Syrii
Języki publikacji
EN
Abstrakty
EN
The Syrian Thymus cilicicus (Th. cilicicus) Boiss & Bal. and Thymus syriacus (Th. syriacus) Boiss chemical components were identified using GC-MS spectrometry. Sixteen constituents representing an average of 93.85% of the essential oil from Syrian Thymus cilicicus were characterized. The major average components in four collection rounds of Thymus cilicicus around the year were: thymol, carvacrol, γ-terpinene, carvyl acetate, dihydrocarvone and anis aldehyde. Eighteen components representing an average of 93.46% of the essential oil of Thymus syriacus were characterized. The major average components in four collection rounds of Thymus syriacus around the year were: carvacrol, dihydrocarvone, β-caryophyllene, p-cymene, farnesol, limonine, menthol, myrecene, γ-terpinene, terpinene- 4-ol and thymol. The integral antioxidant capacity of aqueous and essential oils extracts of both Thymus species: Th. syriacus and Th. cilicicus have been determined by means of a photochemiluminescence assay (PCL). The highest integral antioxidant capacity has been found for Th. syriacus and Th. cilicicus in Fahel mountain and Salah Aldin locations which have a value of total nmol equivalent per gram of dry material at 374.6 ± 0.94 and 475.80 ± 1.20 nmol TE/g DM, respectively.
PL
Składniki chemiczne Thymus cilicicus (Th. cilicicus) Boiss & Bal. and Thymus syriacus (Th. syriacus) Boiss rosnących w Syrii określono za pomocą spektrometrii GC-MS. Znaleziono i opisano 16 składników stanowiących średnio 93,85% olejku eterycznego Thymus cilicicus. Głównymi składnikami stwierdzonymi w materiale zebranym czterokrotnie w ciągu roku były: tymol, karwakrol, γ-terpinen, octan karwylu, dihydrokarwon i aldehyd anyżowy. Scharakteryzowano 18 składników stanowiących średnio 93,46% olejku eterycznego Thymus syriacus. Ważniejszymi składnikami stwierdzonymi w materiale zebranym czterokrotnie w ciągu roku były: karwakrol, dihydrokarwon, β-kariofilen, p-cymen, farnezol, limonin, mentol, myrecen, γ-terpinen, terpinen-4-ol i tymol. Najwyższa łączna zdolność antyoksydacyjna została znaleziona w Th. syriacus i Th. cilicicus zebranych w górach Fahal i w Salah Aldin. Wartość ta wyrażona jako łączny ekwiwalent antyoksydacyjny w nanomolach na gram suchego materiału wynosiła odpowiednio 374,6±0,94 i 47,80±1,20 nmola TE/g DM.
Wydawca
-
Czasopismo
Rocznik
Tom
58
Numer
4
Opis fizyczny
p.70-84,fig.,ref.
Twórcy
autor
  • Department of Chemistry, Atomic Energy Commission of Syria, P.O.Box 6091, Damascus, Syria
autor
  • Department of Chemistry, Atomic Energy Commission of Syria, P.O.Box 6091, Damascus, Syria
autor
  • Department of Chemistry, Atomic Energy Commission of Syria, P.O.Box 6091, Damascus, Syria
Bibliografia
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Typ dokumentu
Bibliografia
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Identyfikator YADDA
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