FIGURE 5.8 Key intermediates from shikimic acid.
Essential Oils Database, n.d.; Gildemeister and Hoffmann, 1956; Günther, 1948). Benzyl alcohol occurs in muguet, jasmine, and narcissus, for example, and its acetate is the major component of jasmine oils. The richest sources of benzaldehyde are almond and apricot kernels but it is also found in a wide range of flowers, including lilac, and other oils such as cassia and cinnamon. Hydroxylation or amination of benzoic acid leads to further series of natural products and some of the most significant, in terms of odors of essential oils, are shown in Figure 5.9. o-Hydroxybenzoic acid is known as salicylic acid (38) and both it and its esters are widely distributed in nature. For instance, methyl salicylate (39) is the major component (about 90% of the volatiles) of wintergreen and makes a significant contribution to the scents of tuberose and ylang ylang although only present at about 10% in the former and less than 1% in the latter. o-Aminobenzoic acid is known as anthranilic acid (40). Its methyl ester (41) has a very powerful odor and is found in such oils as genet, bitter orange flower,
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You have probably heard the term Aromatherapy and wondered what exactly that funny word, „aromatherapy‟ actually means. It is the use of plant oils in there most essential form to promote both mental and physical well being. The use of the word aroma implies the process of inhaling the scents from these oils into your lungs for therapeutic benefit.