Showing papers on "Patchoulol published in 2007"
TL;DR: The solubility of the sesquiterpene alcohol patchoulol in supercritical carbon dioxide was measured at P ranging from 10.0 MPa to 25.0MPa and T of 40.0 and 50.0 °C using a simple microsampling type apparatus with a 100.5 µL sample loop for off-line analysis.
Abstract: The solubility of the sesquiterpene alcohol patchoulol in supercritical carbon dioxide was measured at pressures (P) ranging from 10.0 MPa to 25.0 MPa and temperatures (T) of 40.0 and 50.0 °C using a simple microsampling-type apparatus with a 100.5 μL sample loop to remove aliquots for off-line analysis. The system was first validated using vanillin with off-line spectrophotometric analysis, then utilized for patchoulol measurements with off-line GC−MS analysis. The measured solubility of patchoulol in supercritical CO2 ranged from mole fractions of 0.43 × 10-3 at 10.0 MPa and 50.0 °C to mole fractions of 9.4 × 10-3 at 25.0 MPa and 40.0 °C.
18 citations
TL;DR: It was observed that the oil yield decreased gradually with the increase in weed biomass, but the percentage of patchoulol showed a different behaviour, which may decrease its commercial value.
Abstract: Experiments were conducted to study the weed flora and its influence on the yield of oil and
Patchoulol by co-distillation of fresh Patchouli leaves with weed biomass at different proportions (0,
5, 10, 15 and 30%) during 2004-05 and 2005-06. The survey of weeds commonly growing in
patchouli plantation was made and a total of 17 weed species were recorded. Alternanthera sessile,
Cynodon dactylon and Oxalis cornicullata exhibited 100% frequency in both the years. A. sessile, C.
dactylon and O. cornicullata had highest density during 1st year and the density of most of the weed
species increased during 2nd year except C. dactylon and A. sessile. Co-distillation of fresh
Patchouli leaves with weeds at the rate of 0, 5, 10,15 and 30% yielded 0.70, 0.67, 0.65, 0.50 and
0.43% oil, respectively. It was observed that the oil yield decreased gradually with the increase in
weed biomass. However, the percentage of patchoulol showed a different behaviour. It decreased at
15% (53.7) and 30% (50.4) and increased at 5% (56.5) and 10% (63.8) treatments. The oil extracted
with weed biomass imports a weedy odour, which may decrease its commercial value. © Academic
Journals Inc.
14 citations
Patent•
12 Jan 2007
TL;DR: In this paper, a method for increasing the patchoulol content in essential-oil extracted from leaves of Pogostemon cablin is provided, comprising contacting a dried patchouli biomass with microbial cultures, incubating the patchioli biomass under conditions suitable for allowing the increase in the patcholol content and extracting the oil.
Abstract: A process is provided for improving sensory properties of essential oils by treatment and incubation with a microbial culture during the extraction process. A method for increasing the patchoulol content in essential- oil extracted from leaves of Pogostemon cablin is provided, comprising contacting a dried patchouli biomass with microbial cultures, incubating the patchouli biomass under conditions suitable for allowing the increase in the patchoulol content and extracting the oil. This process results in increased patchoulol content without decreasing the overall oil yields. The patchouli oil also has enriched aroma.
5 citations