Abstract
Solid phase miscroextraction(SPME) was used to extract essential oil from Michelia figo perianth during its unfolding and the chemical compositions were identified by gas chromatography-mass spectrometry(GC-MS),their relative percentage contents were determined by peak area normalization method.The results showed that 42 compounds were identified from perianth at 5 stages,including 18 terpenoid compounds,7 ester compounds,4 alcohol compounds,1 ketone compound,11 alkanes compounds and 1 unknown compound.9 compounds were determined from more than 3 stages,including germacrene D,caryophyllene,phenol,2,6-bis(1,1-dimethylethyl)-4-methyl-,β-elemene,γ-elemene, 1-octanol,2-butyl-,dibutyl phthalate,cyclohexane,1-ethenyl-1-methyl-2-(1-methylethenyl)-4(1-methylethylidene)-and butyl caprylate.The compositions and their peak areas were different distinctly in different developmental stages,the compositions were the most(18) and the peak area(2810607) was the largest at stage Ⅳ.So stage Ⅳ was considered to be the best picking stage of M.figo perianth to scenting tea and extract essential oil.
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Claims 7
Claim · model-written summary
Forty-two compounds were identified in the perianth across five stages.
- Taxon
- Michelia figo
Magnolia figot0 - Organ / stage
- perianthe0
- Outcome
- compounds were identifiede0
- Value
- 42 compoundse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“42 compounds were identified from perianth at 5 stages”
t0“Michelia figo perianth”
Claim · model-written summary
Nine compounds were determined from more than three stages.
- Taxon
- Michelia figoMagnolia figot0
- Outcome
- compounds were determinede0
- Value
- 9 compoundse0
- Qualifier
- more than 3 stagese0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“9 compounds were determined from more than 3 stages”
t0“Michelia figo perianth”
Claim · model-written summary
Essential oil compositions differed distinctly between developmental stages.
- Taxon
- Michelia figoMagnolia figot0
- Organ / stage
- different developmental stagese0
- Outcome
- compositionse0
- Direction
- different distinctlye0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The compositions and their peak areas were different distinctly in different developmental stages”
t0“Michelia figo perianth”
Claim · model-written summary
Essential oil peak areas differed distinctly between developmental stages.
- Taxon
- Michelia figoMagnolia figot0
- Organ / stage
- different developmental stagese0
- Outcome
- peak arease0
- Direction
- different distinctlye0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The compositions and their peak areas were different distinctly in different developmental stages”
t0“Michelia figo perianth”
Claim · model-written summary
The greatest number of compositions, 18, occurred at stage IV.
- Taxon
- Michelia figoMagnolia figot0
- Organ / stage
- stage Ⅳe0
- Outcome
- compositions were the moste0
- Direction
- moste0
- Value
- 18e0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“the compositions were the most(18) and the peak area(2810607) was the largest at stage Ⅳ”
t0“Michelia figo perianth”
Claim · model-written summary
Peak area was largest at stage IV, at 2810607.
- Taxon
- Michelia figoMagnolia figot0
- Organ / stage
- stage Ⅳe0
- Outcome
- peak areae0
- Direction
- largeste0
- Value
- 2810607e0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“the compositions were the most(18) and the peak area(2810607) was the largest at stage Ⅳ”
t0“Michelia figo perianth”
Claim · model-written summary
The authors considered stage IV best for picking perianth for tea scenting and essential oil extraction.
- Taxon
- Michelia figoMagnolia figot0
- Organ / stage
- stage Ⅳe0
- Outcome
- best picking stagee0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“stage Ⅳ was considered to be the best picking stage of M.figo perianth to scenting tea and extract essential oil”
t0“Michelia figo perianth”