Progress in Essential Oils

Putievsky (1994) compared the major component composition of various plant parts of Salvia sclarea grown in Israel. The data obtained from this study is shown in T-1.

A supercritical CO2 extract of the steam-distilled residue of S. sclarea was produced at 30ºC under a pressure of 35 Mpa and a CO2 flow rate of 5 L/h. This extract was determined by Liu et al. (2001) to contain sclareol (72.86 percent) as the major constituent.

Hudaib et al. (2001) compared the composition of clary sage oils produced from healthy plants and plants infected by the broad bean fava virus (serotype- BBWV-1) with a commercial sample of Russian clary sage oil. The data from the comparative analytical study is shown in T-2. As can be seen, the oil from infected plants was slightly richer in sesquiterpene hydrocarbons α-terpineol and sclareol; however, these differences were not large and could vary to this extent for oils from healthy plants within a single season. It is also unfortunate that the authors misidentified over 15 percent of the constituents listed in T-2.

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