Abstract
The aqueous solutions of 12 essential oils were studied. A level of stable concentration, unchanged for at least 20 days, was obtained for elemicin, eugenol, isoeugenol, estragole, safrol and myristicine. Anethole, isomyristicine, eugenol methyl ether, isoeugenol methyl ether, asarone and isosafrol were only partially studied. Stable aqueous solutions filtered through UF fritted glass filters are sterile and can be tested in tissue culture. Propenyl isomers have lower solubility than the allyl counterparts. Changes occurred in several oils after various periods of standing, as observed by spectrophotometric absorption spectra. Millipore membranes of the MF type, and possibly polypropylene tubes were found to remove the oils from solution at concentrations which are otherwise stable.
Published Version
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