Cargando…

Occurrence and Sources of Triterpenoid Methyl Ethers and Acetates in Sediments of the Cross-River System, Southeast Nigeria

Pentacyclic triterpenol methyl ethers (PTMEs), germanicol methyl ether (miliacin), 3-methoxyfern-9(11)-ene (arundoin), β-amyrin methyl ether (iso-sawamilletin), and 3-methoxytaraxer-14-ene (sawamilletin or crusgallin) were characterized in surface sediments of the Cross-River system using gas chroma...

Descripción completa

Detalles Bibliográficos
Autores principales: Oyo-Ita, Orok E., Ekpo, Bassey O., Oros, Daniel R., Simoneit, Bernd R. T.
Formato: Texto
Lenguaje:English
Publicado: Hindawi Publishing Corporation 2010
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC2855994/
https://www.ncbi.nlm.nih.gov/pubmed/20414350
http://dx.doi.org/10.1155/2010/502076
_version_ 1782180222245797888
author Oyo-Ita, Orok E.
Ekpo, Bassey O.
Oros, Daniel R.
Simoneit, Bernd R. T.
author_facet Oyo-Ita, Orok E.
Ekpo, Bassey O.
Oros, Daniel R.
Simoneit, Bernd R. T.
author_sort Oyo-Ita, Orok E.
collection PubMed
description Pentacyclic triterpenol methyl ethers (PTMEs), germanicol methyl ether (miliacin), 3-methoxyfern-9(11)-ene (arundoin), β-amyrin methyl ether (iso-sawamilletin), and 3-methoxytaraxer-14-ene (sawamilletin or crusgallin) were characterized in surface sediments of the Cross-River system using gas chromatography-mass spectrometry (GC-MS). Triterpenol esters (mainly α- and β-amyrinyl acetates and hexanoates, and lupeyl acetate and hexanoate) were also found. These distinct compounds are useful for assessing diagenesis that can occur during river transport of organic detritus. Poaceae, mainly Gramineae and Elaeis guineensis higher plant species, are proposed as primary sources for the PTMEs and esters in the sediments. PTMEs are biomarkers of specific higher plant subspecies, while the triterpenol esters are indicators of early diagenetic alteration of higher plant detritus.
format Text
id pubmed-2855994
institution National Center for Biotechnology Information
language English
publishDate 2010
publisher Hindawi Publishing Corporation
record_format MEDLINE/PubMed
spelling pubmed-28559942010-04-22 Occurrence and Sources of Triterpenoid Methyl Ethers and Acetates in Sediments of the Cross-River System, Southeast Nigeria Oyo-Ita, Orok E. Ekpo, Bassey O. Oros, Daniel R. Simoneit, Bernd R. T. Int J Anal Chem Research Article Pentacyclic triterpenol methyl ethers (PTMEs), germanicol methyl ether (miliacin), 3-methoxyfern-9(11)-ene (arundoin), β-amyrin methyl ether (iso-sawamilletin), and 3-methoxytaraxer-14-ene (sawamilletin or crusgallin) were characterized in surface sediments of the Cross-River system using gas chromatography-mass spectrometry (GC-MS). Triterpenol esters (mainly α- and β-amyrinyl acetates and hexanoates, and lupeyl acetate and hexanoate) were also found. These distinct compounds are useful for assessing diagenesis that can occur during river transport of organic detritus. Poaceae, mainly Gramineae and Elaeis guineensis higher plant species, are proposed as primary sources for the PTMEs and esters in the sediments. PTMEs are biomarkers of specific higher plant subspecies, while the triterpenol esters are indicators of early diagenetic alteration of higher plant detritus. Hindawi Publishing Corporation 2010 2010-04-18 /pmc/articles/PMC2855994/ /pubmed/20414350 http://dx.doi.org/10.1155/2010/502076 Text en Copyright © 2010 Orok E. Oyo-Ita et al. https://creativecommons.org/licenses/by/3.0/ This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
spellingShingle Research Article
Oyo-Ita, Orok E.
Ekpo, Bassey O.
Oros, Daniel R.
Simoneit, Bernd R. T.
Occurrence and Sources of Triterpenoid Methyl Ethers and Acetates in Sediments of the Cross-River System, Southeast Nigeria
title Occurrence and Sources of Triterpenoid Methyl Ethers and Acetates in Sediments of the Cross-River System, Southeast Nigeria
title_full Occurrence and Sources of Triterpenoid Methyl Ethers and Acetates in Sediments of the Cross-River System, Southeast Nigeria
title_fullStr Occurrence and Sources of Triterpenoid Methyl Ethers and Acetates in Sediments of the Cross-River System, Southeast Nigeria
title_full_unstemmed Occurrence and Sources of Triterpenoid Methyl Ethers and Acetates in Sediments of the Cross-River System, Southeast Nigeria
title_short Occurrence and Sources of Triterpenoid Methyl Ethers and Acetates in Sediments of the Cross-River System, Southeast Nigeria
title_sort occurrence and sources of triterpenoid methyl ethers and acetates in sediments of the cross-river system, southeast nigeria
topic Research Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC2855994/
https://www.ncbi.nlm.nih.gov/pubmed/20414350
http://dx.doi.org/10.1155/2010/502076
work_keys_str_mv AT oyoitaoroke occurrenceandsourcesoftriterpenoidmethylethersandacetatesinsedimentsofthecrossriversystemsoutheastnigeria
AT ekpobasseyo occurrenceandsourcesoftriterpenoidmethylethersandacetatesinsedimentsofthecrossriversystemsoutheastnigeria
AT orosdanielr occurrenceandsourcesoftriterpenoidmethylethersandacetatesinsedimentsofthecrossriversystemsoutheastnigeria
AT simoneitberndrt occurrenceandsourcesoftriterpenoidmethylethersandacetatesinsedimentsofthecrossriversystemsoutheastnigeria