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Original Article

Comparative study for the volatile constituents and the antioxidant activity of the essential oils of dried Achillea fragrantissima cultivated in Madinah Monawara, Saudi Arabia and Egypt

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Pages 395-404 | Received 19 Aug 2018, Accepted 14 Feb 2019, Published online: 08 Mar 2019

Figures & data

Table 1. Volatile constituents identified from the essential oils of A. fragrantissima cultivated in Egypt and Madinah using GC-MS with HD extraction and SPME

Figure 1. Volatile extracts chromatograms for Egyptian A. fragrantissima isolated by (a) hydrodistillation and (b) SPME

Figure 1. Volatile extracts chromatograms for Egyptian A. fragrantissima isolated by (a) hydrodistillation and (b) SPME

Table 2. Ecological, climatic and geographical characteristics of growing areas in Egypt and Madinah Monawara, KSA

Figure 2. Volatile extracts chromatograms for Madinah, Saudi Arabia A. fragrantissima isolated by (a) hydrodistillation and (b) SPME

Figure 2. Volatile extracts chromatograms for Madinah, Saudi Arabia A. fragrantissima isolated by (a) hydrodistillation and (b) SPME

Figure 3. Effect of extraction technique on the area percentage of the main volatiles of A. fragrantissima cultivated in Egypt and Madinah

Figure 3. Effect of extraction technique on the area percentage of the main volatiles of A. fragrantissima cultivated in Egypt and Madinah

Table 3. Antioxidant activity of essential oils for A. fragrantissima cultivated in Egypt and Madinah in comparison to the synthetic antioxidant TBHQ