STUDY OF MICROWAVE EXTRACTION OF ESSENTIAL OIL CONSTITUENTS FROM PLANT MATERIALS

Authors
CHEN SS SPIRO M
Citation
Ss. Chen et M. Spiro, STUDY OF MICROWAVE EXTRACTION OF ESSENTIAL OIL CONSTITUENTS FROM PLANT MATERIALS, The Journal of microwave power and electromagnetic energy, 29(4), 1994, pp. 231-241
Citations number
NO
Categorie Soggetti
Engineering, Eletrical & Electronic
Journal title
The Journal of microwave power and electromagnetic energy → ACNP
ISSN journal
08327823
Volume
29
Issue
4
Year of publication
1994
Pages
231 - 241
Database
ISI
SICI code
0832-7823(1994)29:4<231:SOMEOE>2.0.ZU;2-H
Abstract
The microwave heating characteristics of extraction mixtures consistin g of rosemary or peppermint leaves suspended in hexane, ethanol and he xane + ethanol mixtures were studied. The temperature rises were found to depend on the dielectric properties of the solvents and the leaves in question. The rates of extraction of several essential oil constit uents increased with increasing power output between ca 200 and 640 W but not in a proportional way. Scanning electron micrographs of the le aves showed that the extraction rates were related to structural chang es in the oil-containing glands.