Showing papers on "Patchoulol published in 2009"
TL;DR: In this paper, patchouli essential oil was extracted with supercritical carbon dioxide (scCO 2 ) under different conditions of pressure (8.5 and 14 MPa) and temperature (40 and 50 °C).
Abstract: Patchouli essential oil is an important raw material for the perfume and cosmetics industries, besides being used as a natural additive for food flavoring. Patchoulol and α-patchoulene are important compounds of patchouli essential oil, and their concentrations are directly proportional to the quality of the oil. Nowadays, the usual method employed to obtain patchouli essential oil is steam distillation; however, this causes thermal degradation of some oil compounds. In this study patchouli essential oil was extracted with supercritical carbon dioxide (scCO 2 ) under different conditions of pressure (8.5 and 14 MPa) and temperature (40 and 50 °C) and also by steam distillation to compare the extraction methods. It was demonstrated that the extraction with supercritical carbon dioxide provided a higher yield and a better quality of patchouli essential oil.
192 citations
TL;DR: Both species shared compounds like α- and β-patchoulene, patchouli alcohol (patchoulol), β-caryophyllene, α-guaiene, seychellene and selinene, although quantitatively less in P. travancoricus.
Abstract: Comparative study on the essential oil constituents of Pogostemon cablin (Blanco) Benth. (Patchouli) and P. travancoricus Bedd. var. travancoricus were investigated using GC and GC/MS analysis. Eleven compounds from P. cablin oil (Patchouli) and 13 from P. travancoricus var. travancoricus oil were identified. Both species shared compounds like α- and β-patchoulene, patchouli alcohol (patchoulol), β-caryophyllene, α-guaiene, seychellene and selinene, although quantitatively less in P. travancoricus var. travancoricus.
36 citations
TL;DR: Patchoulol was subjected to transformation by Absidia coerulea AM93 and Mucor hiemalis AM450 strains, which displayed differing vulnerability to the fungistatic action of the patchoulol, and was capable of selective hydroxylations of the substrate.
Abstract: Patchoulol was subjected to transformation by Absidia coerulea AM93 and Mucor hiemalis AM450 strains. Both micro-organisms, which displayed differing vulnerability to the fungistatic action of the patchoulol, were capable of selective hydroxylations of the substrate. The major constituents of the mixtures after transformation were (8S)-8-hydroxypatchoulol and (9R)-9-hydroxypatchoulol; the transformation carried out by M. hiemalis resulted in the additional formation of (3R)-3-hydroxypatchoulol. The mixture of (8S)-8-hydroxypatchoulol and (9R)-9-hydroxypatchoulol can be used in the synthesis of patchoulenol, a compound with an odour very similar to that of a valuable fragrance, norpatchoulenol.
8 citations