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

• Autorzy: Zayzafoon G. , Odeh A. , Allaf A. W.

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.

Słowa kluczowe

EN

determination; essential oil; oil composition; antioxidant capacity; photochemiluminescence; leaf; Thymus syriacus; Thymus cilicicus; Syria; location; gas chromatography-mass spectrometry

• Wydawca: -
• Czasopismo: Herba Polonica
• Rocznik: 2012
• Tom: 58
• Numer: 4
• Opis fizyczny: p.70-84,fig.,ref.

Twórcy

autor

Zayzafoon G.

• Department of Chemistry, Atomic Energy Commission of Syria, P.O.Box 6091, Damascus, Syria

autor

Odeh A.

• Department of Chemistry, Atomic Energy Commission of Syria, P.O.Box 6091, Damascus, Syria

autor

Allaf A. W.

• Department of Chemistry, Atomic Energy Commission of Syria, P.O.Box 6091, Damascus, Syria

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