Variations in the Quality and Yield of the Essential Oil from Artemisia afra Using Different Drying Methods.

Simple item page
dc.contributor.authorAsekun, O.T.
dc.contributor.authorGrierson, D.S.
dc.contributor.authorAfolayan, A.J.
dc.date.accessioned2019-08-26T11:19:36Z
dc.date.available2019-08-26T11:19:36Z
dc.date.issued2007
dc.descriptionStaff Publicationsen_US
dc.description.abstractThe impact of drying methods, namely, air, sun and oven-drying on the quality and quantity of the essential oil of Artemisia afra was studied. The oil yields from the plant differed according to the drying methods; viz: 0.18%, 0.88%, 1.54% and 1.88% for fresh, oven-dried, air-dried and sun-dried oils respectively. The essential oil from the plant contained mostly monoterpenoids (96.3% - 84.0%) and, to a small extent, sesquiterpenoids (2.6% - 0.1%). Compounds such as α- and β-Thujone (52.1 - 39.8%), camphor (14.4 - 8.2%), 1, 8-cineole (21.8–13.1%) and borneol (7.8 - 2.7%) which are the major components responsible for the characteristic flavour of the herb, were present in significant amounts in the oils from the entire dried herb preparations. The fresh oil contained artemi-sia ketone (6.9%), which was absent in the dried oils. Apart from the large quantitative difference in the yield of the hydrodistillates, there was no significant loss of volatile components, except in the sun-dried oil which were mainly sesquiterpenoids. Generally, the drying methods had no significant effect on the monoterpenoids composition of the essential oils from A. afra, however sun drying which has the lowest no of components (14) has the highest percentage oil yield and composition.en_US
dc.identifier.citationAsekun, O. T., Grierson, D. S., & Afolayan, A. J. (2007). Variations in the quality and yield of the essential oil from Artemisia afra using different drying methods. Journal of Essential Oil Bearing Plants, Vol.10(1), 5-9p.en_US
dc.identifier.urihttps://ir.unilag.edu.ng/handle/123456789/4720
dc.language.isoenen_US
dc.publisherTaylor and Francisen_US
dc.subjectResearch Subject Categories::NATURAL SCIENCES::Chemistry::Organic chemistryen_US
dc.subjectArtemisia afraen_US
dc.subjectα-thujoneen_US
dc.subjectEssential oilen_US
dc.subjectβ-thujoneen_US
dc.subjectcamphoren_US
dc.titleVariations in the Quality and Yield of the Essential Oil from Artemisia afra Using Different Drying Methods.en_US
dc.typeArticleen_US
Files
Original bundle
Now showing 1 - 1 of 1
Thumbnail Image
Name:
Variations in the Quality and Yield of the Essential Oil from Artemisia afra Using Different Drying Methods.pdf
Size:
177.54 KB
Format:
Adobe Portable Document Format
Description:
Fulltext attached
Download
License bundle
Now showing 1 - 1 of 1
Thumbnail Image
Name:
license.txt
Size:
1.71 KB
Format:
Item-specific license agreed upon to submission
Description:
Download
Collections
Chemistry-Scholarly Publications