Figure 13.7 Variation in average content of iimonene, 3-pmene, neral + geranial, aliphatic aldehydes, alcohols and esters for lemon oils produced in Italy during two productive seasons (Dugo etal., 1983, 1984, 1988).
aldehydes and alcohol were higher than in those oils mechanically extracted; in fact, for the latter the loss of water soluble components was inevitable, even if optimised conditions were used. The only exception was terpinen-4-ol present in both oils at almost identical values. This could be explained by hydration phenomena during the mechanical extraction, using carrier water that caused the formation of terpinen-4-ol compensating the amount lost during the process.
Other papers, than those reported in Table 13.15, can be found in literature on the analysis of lemon oil, for the determination of single components or classes of components, or for the application of innovative gas chromatographic set-up for the analysis volatile components present in natural complex matrices.
Nishida and Acree (1984) isolated and characterised from lemon oil two epimeric forms of methyl jasmonate. The methyl epijasmonate was the most abundant.
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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.