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Articles » Influence of drying methods on the essential oil content and composition of Roman chamomile

ABSTRACT: The flowers of Roman chamomile (Chamaemelum nobile L. All. var. flora plena) cultivated in Iran
were dried by three different drying methods of sun-drying, shade-drying and oven-drying at 40 °C. The essential
oils of every treatment were obtained by hydrodistillation of the flowers, and were analysed by GC and GC–MS.
The oil content of the shade-dried flowers was the largest (1.9% w/w) compared to sun-drying (0.4% w/w) and
oven-drying at 40 °C (0.9% w/w). Drying methods had no effect on the number of chemical components of the
essential oil, as 14 components were identified in the oil of every drying method. The major components were
isobutyl angelate, 2-methyl butyl angelate, propyl tiglate, isoamyl angelate and 3-methylbutyl isobutyrate. However,
the drying method had a significant effect on the proportion of the various components. Copyright © 2004 John
Wiley & Sons, Ltd.
: Dr.Reza Omidbaigi
Keywords: chamaemelum nobile - asteraceae - drying methods - essential oil composition - isobutyl angelate - 2-methylbutyl angelate - propyl tiglate - isoamyl angelate