Alpha-ionone

Lawsonia inermis L. Zhi Jia Hua (Henna) (flower) Alpha-ionone, beta-ionone, gallic acid, lawsone.50 Antibiotic, antitumor, anthelmintic, astringent, bactericidal, fungicidal, sedative. 

Quattrini, F., Biressi, G., Juza, M., Mazzotti, M., Fuganti, C., and Morbidelli, M. (1999) Enantiomer separation of alpha-ionone using gas chromatography with cyclodextrin derivatives as chiral stationary phases. J. Chromatogr. A 865, 201-210. 

In studies of the substantivity of nine aroma chemicals in a fabric softener application, head-space gas chromatography showed that benzyl salicylate, aldehyde C12 MNA, lilial, musk ketone, and the synthetic musk Fixolide were lost to a far lesser extent upon drying than were alpha ionone, eugenol, or linalool (Muller, Neuner-Jehle, and Etzweiler, 1992) (Figure 13.2). This result corresponds to the relative vapor pressures of these materials, except for aldehyde C12 MNA which is a special case. 

The following example shows a strawberry flavour, analysed by the GC/MSD coupling technique using the TIC-method (Fig. 6.5). The identification of peak No. 5 (ethyl isovalerate), peak No. 14 (alpha-ionone) and peak No. 21 (ethyl 3-phenyl-glycidate) by the mass-spectrum shows the usefulness of this modem analysis technique. 

Fig. 6. 7 Mass spectrum of peak No. 14, identified as alpha-ionone...

Esehenmoser W, Uebelhart R Eugster CH (1981) Synthesis and chirality of the enantiomeric 6-hydroxy-alpha-ionones and of cis and trawi 5,6-di-hydroxy-5,6-dihydro-beta-ionones. Helv Chim Acta 64 2681-2690... 

Alpha-ionone.—Specific gravity at 15° C., 0 9338 refmctive index at 16 5° C., 1 50048 (Ohuit) optically it is inactive. 

Methyl Butanoate HexanoI-1 Methyl Cinnamate Alpha-ionone 2-Hexanone Methyl Benzoate Naphthalene... 

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