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The National Agricultural Library is one of four national libraries of the United States, with locations in Beltsville, Maryland and Washington, D.C. It houses one of the world's largest and most accessible agricultural information collections and serves as the nexus for a national network of state land-grant and U.S. Department of Agriculture field libraries. In fiscal year 2011 (Oct 2010 through Sept 2011) NAL delivered more than 100 million direct customer service transactions.

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Journal Article

Journal Article

Qualitative and quantitative changes in the essential oil of Laurus nobilis L. leaves as affected by different drying methods  [2011]

Sellami, Ibtissem Hamrouni; Wannes, Wissem Aidi; Bettaieb, Iness; Berrima, Sarra; et al.

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The effect of six different drying methods on the content and chemical composition of the essential oil of Laurus nobilis L. leaves was studied. The essential oils from fresh and dried samples were isolated by hydrodistillation in a Clevenger apparatus and analysed by gas chromatography-mass spectrometry (GC-MS). Results showed that air drying at ambient temperature and infrared drying at 45°C increased significantly the essential oil content. Forty-seven components were determined in essential oils, which were mostly oxygenated monoterpenes. This class of compounds is not significantly affected by the method of drying except for air drying at ambient temperature. The main components 1,8-cineole, methyl eugenol, terpinen-4-ol, linalool and eugenol showed significant variations with drying methods. The concentrations of these compounds increased significantly in the case of air drying at ambient temperature. These results allowed considering this method of drying as the method that produced the best results in terms of essential oil and bioactive compounds contents.
From the journal
Food chemistry
ISSN : 0308-8146

Bibliographic information

Language:
English
Type:
Journal Article
In AGRIS since:
2013
Volume:
126
Issue:
2
Start Page:
691
End Page:
697
Publisher:
[Amsterdam]: Elsevier Science
All titles:
"Qualitative and quantitative changes in the essential oil of Laurus nobilis L. leaves as affected by different drying methods"@eng
Other:
"Includes references"
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Bibliographic information

Language:
English
Type:
Journal Article
In AGRIS since:
2013
Volume:
126
Issue:
2
Start Page:
691
End Page:
697
Publisher:
[Amsterdam]: Elsevier Science
All titles:
"Qualitative and quantitative changes in the essential oil of Laurus nobilis L. leaves as affected by different drying methods"@eng
Other:
"Includes references"