Abstract
The essential oil of Helichrysum italicum (Roth) G. Don (everlasting or Immortelle essential oil) was isolated by hydrodistillation and analysed by GC and GCMS. Forty four compounds were identified. The main components were alpha-pinene(12.8%), 2-methyl-cyclohexyl pentanoate (11.1 %), neryl acetate (10.4%), 1,7-di-epi-alpha-cedrene (6.8%) and other compounds. The oil was fractionated and ester-containing fraction was hydrolysed with KOH/H(2)SO(4). The liberated volatiles were analysed by GC and GC-MS: three phenols and twenty seven volatile carboxylic acids were identified[70% low fatty acids (C(2)-C(5)), 15% C(10)-C(12) acids and 15% other acids]. The main acids were acetic acid (24.3%) propanoic acid (17.2%), 2-methylpropanoic acid (11.4%),dodecanoic acid (8.7%), 2-methylbutanoic acid (8.3%), (Z)-2-methylbutenoic acid(5.1%) and decanoic acid (4.6%). With respect to the identified bonded carboxylic acids,the minimal number of esters in the oil was twenty seven, but their overall quantity was probably larger due to different possible combinations of alcohols with acids to form esters. On the other hand, only six main esters were identified in the oil before fractionation and hydrolysis.
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Claims 18
Claim · model-written summary
Forty four compounds were identified in Helichrysum italicum essential oil.
- Taxon
- Helichrysum italicum
.JPG?width=60)
Helichrysum italicume0 - Outcome
- Forty four compoundse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
.JPG?width=500)
Verbatim
e0“The essential oil of Helichrysum italicum (Roth) G. Don (everlasting or Immortelle essential oil) was isolated by hydrodistillation and analysed by GC and GCMS. Forty four compounds were identified.”
Claim · model-written summary
alpha-pinene was a main component of the essential oil at 12.8%.
- Taxon
- Helichrysum italicumHelichrysum italicumt0
- Outcome
- alpha-pinenee0
- Value
- 12.8%e0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The main components were alpha-pinene(12.8%), 2-methyl-cyclohexyl pentanoate (11.1 %), neryl acetate (10.4%), 1,7-di-epi-alpha-cedrene (6.8%)”
t0“Helichrysum italicum”
Claim · model-written summary
2-methyl-cyclohexyl pentanoate was a main component of the essential oil at 11.1 %.
- Taxon
- Helichrysum italicumHelichrysum italicumt0
- Outcome
- 2-methyl-cyclohexyl pentanoatee0
- Value
- 11.1 %e0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The main components were alpha-pinene(12.8%), 2-methyl-cyclohexyl pentanoate (11.1 %), neryl acetate (10.4%), 1,7-di-epi-alpha-cedrene (6.8%)”
t0“Helichrysum italicum”
Claim · model-written summary
neryl acetate was a main component of the essential oil at 10.4%.
- Taxon
- Helichrysum italicumHelichrysum italicumt0
- Outcome
- neryl acetatee0
- Value
- 10.4%e0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The main components were alpha-pinene(12.8%), 2-methyl-cyclohexyl pentanoate (11.1 %), neryl acetate (10.4%), 1,7-di-epi-alpha-cedrene (6.8%)”
t0“Helichrysum italicum”
Claim · model-written summary
1,7-di-epi-alpha-cedrene was a main component of the essential oil at 6.8%.
- Taxon
- Helichrysum italicumHelichrysum italicumt0
- Outcome
- 1,7-di-epi-alpha-cedrenee0
- Value
- 6.8%e0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The main components were alpha-pinene(12.8%), 2-methyl-cyclohexyl pentanoate (11.1 %), neryl acetate (10.4%), 1,7-di-epi-alpha-cedrene (6.8%)”
t0“Helichrysum italicum”
Claim · model-written summary
Three phenols and twenty seven volatile carboxylic acids were identified after hydrolysis.
- Taxon
- Helichrysum italicumHelichrysum italicumt0
- Outcome
- three phenols and twenty seven volatile carboxylic acidse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“three phenols and twenty seven volatile carboxylic acids were identified”
t0“Helichrysum italicum”
Claim · model-written summary
low fatty acids (C(2)-C(5)) accounted for 70% of the liberated acids.
- Taxon
- Helichrysum italicumHelichrysum italicumt0
- Outcome
- low fatty acids (C(2)-C(5))e0
- Value
- 70%e0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“70% low fatty acids (C(2)-C(5)), 15% C(10)-C(12) acids and 15% other acids”
t0“Helichrysum italicum”
Claim · model-written summary
C(10)-C(12) acids accounted for 15% of the liberated acids.
- Taxon
- Helichrysum italicumHelichrysum italicumt0
- Outcome
- C(10)-C(12) acidse0
- Value
- 15%e0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“70% low fatty acids (C(2)-C(5)), 15% C(10)-C(12) acids and 15% other acids”
t0“Helichrysum italicum”
Claim · model-written summary
other acids accounted for 15% of the liberated acids.
- Taxon
- Helichrysum italicumHelichrysum italicumt0
- Outcome
- other acidse0
- Value
- 15%e0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“70% low fatty acids (C(2)-C(5)), 15% C(10)-C(12) acids and 15% other acids”
t0“Helichrysum italicum”
Claim · model-written summary
acetic acid was a main acid at 24.3%.
- Taxon
- Helichrysum italicumHelichrysum italicumt0
- Outcome
- acetic acide0
- Value
- 24.3%e0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The main acids were acetic acid (24.3%) propanoic acid (17.2%), 2-methylpropanoic acid (11.4%),dodecanoic acid (8.7%), 2-methylbutanoic acid (8.3%), (Z)-2-methylbutenoic acid(5.1%) and decanoic acid (4.6%)”
t0“Helichrysum italicum”
Claim · model-written summary
propanoic acid was a main acid at 17.2%.
- Taxon
- Helichrysum italicumHelichrysum italicumt0
- Outcome
- propanoic acide0
- Value
- 17.2%e0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The main acids were acetic acid (24.3%) propanoic acid (17.2%), 2-methylpropanoic acid (11.4%),dodecanoic acid (8.7%), 2-methylbutanoic acid (8.3%), (Z)-2-methylbutenoic acid(5.1%) and decanoic acid (4.6%)”
t0“Helichrysum italicum”
Claim · model-written summary
2-methylpropanoic acid was a main acid at 11.4%.
- Taxon
- Helichrysum italicumHelichrysum italicumt0
- Outcome
- 2-methylpropanoic acide0
- Value
- 11.4%e0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The main acids were acetic acid (24.3%) propanoic acid (17.2%), 2-methylpropanoic acid (11.4%),dodecanoic acid (8.7%), 2-methylbutanoic acid (8.3%), (Z)-2-methylbutenoic acid(5.1%) and decanoic acid (4.6%)”
t0“Helichrysum italicum”
Claim · model-written summary
dodecanoic acid was a main acid at 8.7%.
- Taxon
- Helichrysum italicumHelichrysum italicumt0
- Outcome
- dodecanoic acide0
- Value
- 8.7%e0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The main acids were acetic acid (24.3%) propanoic acid (17.2%), 2-methylpropanoic acid (11.4%),dodecanoic acid (8.7%), 2-methylbutanoic acid (8.3%), (Z)-2-methylbutenoic acid(5.1%) and decanoic acid (4.6%)”
t0“Helichrysum italicum”
Claim · model-written summary
2-methylbutanoic acid was a main acid at 8.3%.
- Taxon
- Helichrysum italicumHelichrysum italicumt0
- Outcome
- 2-methylbutanoic acide0
- Value
- 8.3%e0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The main acids were acetic acid (24.3%) propanoic acid (17.2%), 2-methylpropanoic acid (11.4%),dodecanoic acid (8.7%), 2-methylbutanoic acid (8.3%), (Z)-2-methylbutenoic acid(5.1%) and decanoic acid (4.6%)”
t0“Helichrysum italicum”
Claim · model-written summary
(Z)-2-methylbutenoic acid was a main acid at 5.1%.
- Taxon
- Helichrysum italicumHelichrysum italicumt0
- Outcome
- (Z)-2-methylbutenoic acide0
- Value
- 5.1%e0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The main acids were acetic acid (24.3%) propanoic acid (17.2%), 2-methylpropanoic acid (11.4%),dodecanoic acid (8.7%), 2-methylbutanoic acid (8.3%), (Z)-2-methylbutenoic acid(5.1%) and decanoic acid (4.6%)”
t0“Helichrysum italicum”
Claim · model-written summary
decanoic acid was a main acid at 4.6%.
- Taxon
- Helichrysum italicumHelichrysum italicumt0
- Outcome
- decanoic acide0
- Value
- 4.6%e0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The main acids were acetic acid (24.3%) propanoic acid (17.2%), 2-methylpropanoic acid (11.4%),dodecanoic acid (8.7%), 2-methylbutanoic acid (8.3%), (Z)-2-methylbutenoic acid(5.1%) and decanoic acid (4.6%)”
t0“Helichrysum italicum”
Claim · model-written summary
The oil contained at least twenty seven esters inferred from identified bonded acids.
- Taxon
- Helichrysum italicumHelichrysum italicumt0
- Outcome
- esters in the oile0
- Value
- twenty sevene0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“With respect to the identified bonded carboxylic acids,the minimal number of esters in the oil was twenty seven”
t0“Helichrysum italicum”
Claim · model-written summary
Only six main esters were identified before fractionation and hydrolysis.
- Taxon
- Helichrysum italicumHelichrysum italicumt0
- Outcome
- main esterse0
- Value
- sixe0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“only six main esters were identified in the oil before fractionation and hydrolysis”
t0“Helichrysum italicum”