STUDIES ON YARROW II Achillea millefolium L.

Abdel-Kader,, H. H.; Massoud, H. Y.; Ahmed, H. A.; Ibrahim, F. R.

doi:10.21608/jpp.2004.238771

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	STUDIES ON YARROW II Achillea millefolium L." PLANTS: B. EFFECT OF STORAGE PERIOD OF THE DRIED FLOWERS ON THE ESSENTIAL OIL PERCENTAGE AND COMPOSITION.
Article 17, Volume 29, Issue 7, July 2004, Page 4103-4113 PDF (2.85 MB)
Document Type: Original Article
DOI: 10.21608/jpp.2004.238771
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Authors
H. H. Abdel-Kader,; H. Y. Massoud; H. A. Ahmed; F. R. Ibrahim
Vegetable and Floriculture Dept. Fac. of Agriculture, Mansoura Univ.
Abstract
Yarrow (Achillea mille folium, L.) plant, Fam. Asteraceae, locally known as "Thousand leaves", is an important medicinal and aromatic plant that contain high quality essential oil of deep blue color which is rich in chamazulene. A study was carried out during two successive seasons 200012001 and 2001/2002, at the Experimental Station of Medicinal and Aromatic plants, Fac. of Agric., Mansoura Univ. The research aimed to study the effect of length of the storage period on essential oil percentage of the dried flowers collected from two consequent harvests from spring and autumn plantings and the changes that took place during storage in the composition and the relative percentage of its constituents. The physical and chemical properties of the oil were determined and are included in this study. The results showed that increasing the storage period of the dried flowers significantly decreased the essential oil percentage of the flowers by an average of 0.06% every two months. The planting date or the interaction between planting date and the storage period did not significantly affect the essential oil percentage of the dried flowers. , Gas Liquid Chromatography analysis of oil samples revealed ten identified compounds. Chamazulene was the major constituent of the oil forming from 18.42% to 47.32%. The other constituents were p-pinene, thujone, limonene,1-8 cineol, bisabolol, camphor, a _pinene, borneol, terpeinol, and caryophyllene. Increasing length of storage period decreased the percentage of (borneol, terpinol, 1-8 cineol,camphor, thujone and bisabolol) and increased the percentage of (a,p-pinene, Iimonene and caryophylene). While chamazulene percentage increased after two months of storage and decreased thereafter. Oil of autumn planting was higher in chamazulene, 0- and p-pinene, but lower in limonene, caryophylene, 1-8 cineol, Bisabolol, Terpinol, camphor and bomeol than spring. The oil of the 1 st cut of both plantings contained higher percentages of a -pinene, camphor, borneol, thujone, terpinol and chamazulene, but lower p-pinene and bisabolol than the comparable ones of the 2nd cut.


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STUDIES ON YARROW II Achillea millefolium L." PLANTS: B. EFFECT OF STORAGE PERIOD OF THE DRIED FLOWERS ON THE ESSENTIAL OIL PERCENTAGE AND COMPOSITION.