Comparison of conventional and ultrasound-assisted extraction of carvone and limonene from caraway seeds

Author(s): Chemat S, Lagha A, AitAmar H, Bartels PV, Chemat F


Extraction experiments with hexane were carried out at atmospheric pressure in Soxhlet, conventional and ultrasound extractions of flaked caraway seeds, and detailed results are given for two major plant extract components, carvone and limonene. The results indicate that carvone yield and plant extract quality are better in ultrasound extraction compared to those given by conventional methodology. Extraction rates of carvone and limonene reported that ultrasound-assisted extraction was 1.3–2 times more rapid, depending on temperature, than a conventional system, according to the rate constant obtained during the initial 10 minutes of extraction. Moreover, the SEM micrographs provided more evidence for the mechanical effects of ultrasound, mainly appearing on cell walls and shown by the destruction of cells, faulitating the release of their contents, in contrast to conventional maceration or extraction, which involve diffusion of plant extracts across glandular walls and causing cell rupture over longer time periods. Copyright © 2004 John Wiley & Sons, Ltd.

Similar Articles

Oil bodies and their associated proteins, oleosin and caleosin

Author(s): Frandsen GI, Mundy J, Tzen JT

The uses of ultrasound in food technology

Author(s): Mason TJ, Paniwnyk L, Lorimer JP

Handbook of Food Analysis Instruments

Author(s): Chemat F, Tomao V, Virot M

Pulsed Electric Fields

Author(s): Barbosa-Canovas GV, Pierson MD, Zhang QH, Schaffner DW

Pulsed electric field processing of foods: a review

Author(s): Jeyamkondan S, Jayas DS, Holley RA

Impact of pulsed electric field treatment on the recovery and quality of plant oils

Author(s): Guderjan M, Töpfl S, Angersbach A, Knorr D

Enhanced extraction of phenolic compounds from merlot grapes by pulsed electric field treatment

Author(s): Delsart C, Ghidossi R, Poupot C, Cholet C, Grimi N, et al.

Aqueous and enzymatic processes for edible oil extraction

Author(s): Rosenthal A, Pyle DL, Niranjan K

Enzymatic process for extracting oil and protein from rice bran

Author(s): Hanmoungjai P, Pyle DL, Niranjan K

Enzyme-assisted aqueous extraction of peanut oil

Author(s): Sharma A, Khare SK, Gupta MN