Document Detail

Extraction of essential oil from Cupressus sempervirens: comparison of global yields, chemical composition and antioxidant activity obtained by hydrodistillation and supercritical extraction(†).
MedLine Citation:
PMID:  23316864     Owner:  NLM     Status:  Publisher    
In this study, supercritical fluid extraction (SFE) with CO(2) and hydrodistillation (HD) were compared as methods to isolate the essential oil from Cupressus sempervirens. The odour of the oil obtained by SFE at 90 bar and 40°C was very close to the odour of the leaves of C. sempervirens before the extraction. Compounds extracted by both SFE and HD were identified by GC-FID and GC-MS. Moreover, the difference in the chemical composition obtained by SFE and HD was quite noticeable qualitatively and quantitatively. Phenolic composition and antioxidant activity were also determined. Compared to HD, the SFE method presents some advantages: the extraction was completed after 1 h in SFE, although 4 h is necessary for HD, and the yield was improved by 34%. Finally, it has also been shown that SFE is very selective towards some specific components such as manoyl oxide, trans-totarol and α-acoradiene.
Herzi Nejia; Camy Séverine; Bouajila Jalloul; Romdhane Mehrez; Condoret Jean Stéphane
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Publication Detail:
Type:  JOURNAL ARTICLE     Date:  2013-1-14
Journal Detail:
Title:  Natural product research     Volume:  -     ISSN:  1478-6427     ISO Abbreviation:  Nat. Prod. Res.     Publication Date:  2013 Jan 
Date Detail:
Created Date:  2013-1-15     Completed Date:  -     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  101167924     Medline TA:  Nat Prod Res     Country:  -    
Other Details:
Languages:  ENG     Pagination:  -     Citation Subset:  -    
a Laboratoire des Interactions Moléculaires et Réactivité Chimique et Photochimique, Université de Toulouse, Toulouse, France, UMR CNRS 5623, Université Paul-Sabatier , Toulouse , France.
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