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Terpenoid composition and botanical affinity of Cretaceous resins from India and Myanmar

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Title: Terpenoid composition and botanical affinity of Cretaceous resins from India and Myanmar
Authors: Dutta, Suryendu1 s.dutta@iitb.ac.in, Mallick, Monalisa1, Kumar, Kishor2, Mann, Ulrich3, Greenwood, Paul F.4
Source: International Journal of Coal Geology. Jan2011, Vol. 85 Issue 1, p49-55. 7p.
Subjects: Terpenes, Fossil resins, Cretaceous stratigraphic geology, Gas chromatography/Mass spectrometry (GC-MS), Sediments, Pyrolysis
Geographic Terms: Meghalaya (India), India, Myanmar
Abstract: Abstract: Fossil resins from the Cretaceous sediments of Meghalaya, India and Kachin, Myanmar (Burma) were analysed using Curie point pyrolysis–gas chromatography–mass spectrometry and thermochemolysis gas chromatography–mass spectrometry to help elucidate their botanical source. The major pyrolysis products and methyl-esterified thermochemolysis products of both the resins were abietane and labdane type diterpenoids with minor amount of sesquiterpenoids. The thermochemolysis products also included methyl-16,17-dinor callitrisate, methyl-16,17-dinor dehydroabietate and methyl-8-pimaren-18-oate—the latter two from just the Myanmarese resin. The exclusive presence of both labdane and abietane diterpenoids and the lack of phenolic terpenoids may suggest that the studied Cretaceous resins were derived from Pinaceae (pine family) conifers. [ABSTRACT FROM AUTHOR]
Copyright of International Journal of Coal Geology is the property of Elsevier B.V. and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)
Database: Engineering Source
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Header DbId: egs
DbLabel: Engineering Source
An: 57161994
AccessLevel: 6
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PubTypeId: academicJournal
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  Data: Terpenoid composition and botanical affinity of Cretaceous resins from India and Myanmar
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  Data: <searchLink fieldCode="AR" term="%22Dutta%2C+Suryendu%22">Dutta, Suryendu</searchLink><relatesTo>1</relatesTo><i> s.dutta@iitb.ac.in</i><br /><searchLink fieldCode="AR" term="%22Mallick%2C+Monalisa%22">Mallick, Monalisa</searchLink><relatesTo>1</relatesTo><br /><searchLink fieldCode="AR" term="%22Kumar%2C+Kishor%22">Kumar, Kishor</searchLink><relatesTo>2</relatesTo><br /><searchLink fieldCode="AR" term="%22Mann%2C+Ulrich%22">Mann, Ulrich</searchLink><relatesTo>3</relatesTo><br /><searchLink fieldCode="AR" term="%22Greenwood%2C+Paul+F%2E%22">Greenwood, Paul F.</searchLink><relatesTo>4</relatesTo>
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  Data: <searchLink fieldCode="DE" term="%22Terpenes%22">Terpenes</searchLink><br /><searchLink fieldCode="DE" term="%22Fossil+resins%22">Fossil resins</searchLink><br /><searchLink fieldCode="DE" term="%22Cretaceous+stratigraphic+geology%22">Cretaceous stratigraphic geology</searchLink><br /><searchLink fieldCode="DE" term="%22Gas+chromatography%2FMass+spectrometry+%28GC-MS%29%22">Gas chromatography/Mass spectrometry (GC-MS)</searchLink><br /><searchLink fieldCode="DE" term="%22Sediments%22">Sediments</searchLink><br /><searchLink fieldCode="DE" term="%22Pyrolysis%22">Pyrolysis</searchLink>
– Name: SubjectGeographic
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  Data: <searchLink fieldCode="DE" term="%22Meghalaya+%28India%29%22">Meghalaya (India)</searchLink><br /><searchLink fieldCode="DE" term="%22India%22">India</searchLink><br /><searchLink fieldCode="DE" term="%22Myanmar%22">Myanmar</searchLink>
– Name: Abstract
  Label: Abstract
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  Data: Abstract: Fossil resins from the Cretaceous sediments of Meghalaya, India and Kachin, Myanmar (Burma) were analysed using Curie point pyrolysis–gas chromatography–mass spectrometry and thermochemolysis gas chromatography–mass spectrometry to help elucidate their botanical source. The major pyrolysis products and methyl-esterified thermochemolysis products of both the resins were abietane and labdane type diterpenoids with minor amount of sesquiterpenoids. The thermochemolysis products also included methyl-16,17-dinor callitrisate, methyl-16,17-dinor dehydroabietate and methyl-8-pimaren-18-oate—the latter two from just the Myanmarese resin. The exclusive presence of both labdane and abietane diterpenoids and the lack of phenolic terpenoids may suggest that the studied Cretaceous resins were derived from Pinaceae (pine family) conifers. [ABSTRACT FROM AUTHOR]
– Name: AbstractSuppliedCopyright
  Label:
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  Data: <i>Copyright of International Journal of Coal Geology is the property of Elsevier B.V. and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract.</i> (Copyright applies to all Abstracts.)
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RecordInfo BibRecord:
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        Value: 10.1016/j.coal.2010.09.006
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        Text: English
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      – SubjectFull: Terpenes
        Type: general
      – SubjectFull: Fossil resins
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      – SubjectFull: Cretaceous stratigraphic geology
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      – SubjectFull: Gas chromatography/Mass spectrometry (GC-MS)
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      – SubjectFull: Sediments
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      – SubjectFull: Pyrolysis
        Type: general
      – SubjectFull: Meghalaya (India)
        Type: general
      – SubjectFull: India
        Type: general
      – SubjectFull: Myanmar
        Type: general
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      – TitleFull: Terpenoid composition and botanical affinity of Cretaceous resins from India and Myanmar
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            NameFull: Kumar, Kishor
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            NameFull: Mann, Ulrich
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              Text: Jan2011
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              Y: 2011
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