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Investigation of the presence of an aliphatic biopolymer in cyanobacteria: Implications for kerogen formation

Patrick Biller Orcid Logo, Andrew Ross, Steve Skill Orcid Logo

Organic Geochemistry, Volume: 81, Pages: 64 - 69

Swansea University Author: Steve Skill Orcid Logo

DOI (Published version): 10.1016/j.orggeochem.2015.01.010

Abstract

Algaenan has been suggested to be one of the main precursors and contributors to kerogen deposits. Its aliphatic structure has been shown in a variety of microalgae strains. Algaenan is a non-hydrolysable and insoluble biomolecule with a very high molecular weight. There is considerable uncertainty...

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Published in: Organic Geochemistry
Published: 2015
Online Access: http://www.sciencedirect.com/science/article/pii/S0146638015000224
URI: https://cronfa.swan.ac.uk/Record/cronfa20529
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spelling 2016-07-25T16:25:22.0359490 v2 20529 2015-03-25 Investigation of the presence of an aliphatic biopolymer in cyanobacteria: Implications for kerogen formation f7851c38f3019243981f40a4b271e7bb 0000-0001-6777-7488 Steve Skill Steve Skill true false 2015-03-25 SBI Algaenan has been suggested to be one of the main precursors and contributors to kerogen deposits. Its aliphatic structure has been shown in a variety of microalgae strains. Algaenan is a non-hydrolysable and insoluble biomolecule with a very high molecular weight. There is considerable uncertainty about the formation and preservation of algaenan which led to the current kerogen formation and the implications on the global carbon cycle. We aim to prove our current hypothesis - that the cyanobacteria Chlorogloeopsis fritschii may synthesis a similar resistant biomacromolecule to algaenan. This could explain some of the discrepancies in the published literature concerning algaenan. The two microalgae Pseudochoricystis ellipsoidea and Scenedesmus obliquus as well as the cyanobacteria were subjected to harsh solvent extraction and hydrolysis steps to obtain the in-soluble and non-hydroysable macromolecule algaenan. The residues from all three strains were analysed by Pyrolysis-GC-MS and Solid-state NMR. The analysis revealed that the strain Chlorogloeopsis fritschii indeed contains algaenan or a resistant biomacromolecule very similar, exhibiting the characteristic aliphatic structure diagnostic to algaenan. Due to the robust nature of C. fritschii compared to the Eukaryotes to prevail extreme environments such as freezing, thawing, desiccation and overheating conditions which were prevalent in primeval earth, it could have significantly contributed to kerogen formation and the global carbon cycle. Journal Article Organic Geochemistry 81 64 69 Algaenan; Microalgae; Kerogen; Cyanobacteria; Chlorogloeopsis 10 2 2015 2015-02-10 10.1016/j.orggeochem.2015.01.010 http://www.sciencedirect.com/science/article/pii/S0146638015000224 COLLEGE NANME Biosciences COLLEGE CODE SBI Swansea University 2016-07-25T16:25:22.0359490 2015-03-25T14:33:27.9215900 Faculty of Science and Engineering School of Biosciences, Geography and Physics - Biosciences Patrick Biller orcid.org/0000-0003-2982-6095 1 Andrew Ross 2 Steve Skill 0000-0001-6777-7488 3 0020529-13062016165310.pdf Biller2015.pdf 2016-06-13T16:53:10.0800000 Output 907618 application/pdf Accepted Manuscript true 2016-08-10T00:00:00.0000000 true
title Investigation of the presence of an aliphatic biopolymer in cyanobacteria: Implications for kerogen formation
spellingShingle Investigation of the presence of an aliphatic biopolymer in cyanobacteria: Implications for kerogen formation
Steve Skill
title_short Investigation of the presence of an aliphatic biopolymer in cyanobacteria: Implications for kerogen formation
title_full Investigation of the presence of an aliphatic biopolymer in cyanobacteria: Implications for kerogen formation
title_fullStr Investigation of the presence of an aliphatic biopolymer in cyanobacteria: Implications for kerogen formation
title_full_unstemmed Investigation of the presence of an aliphatic biopolymer in cyanobacteria: Implications for kerogen formation
title_sort Investigation of the presence of an aliphatic biopolymer in cyanobacteria: Implications for kerogen formation
author_id_str_mv f7851c38f3019243981f40a4b271e7bb
author_id_fullname_str_mv f7851c38f3019243981f40a4b271e7bb_***_Steve Skill
author Steve Skill
author2 Patrick Biller
Andrew Ross
Steve Skill
format Journal article
container_title Organic Geochemistry
container_volume 81
container_start_page 64
publishDate 2015
institution Swansea University
doi_str_mv 10.1016/j.orggeochem.2015.01.010
college_str Faculty of Science and Engineering
hierarchytype
hierarchy_top_id facultyofscienceandengineering
hierarchy_top_title Faculty of Science and Engineering
hierarchy_parent_id facultyofscienceandengineering
hierarchy_parent_title Faculty of Science and Engineering
department_str School of Biosciences, Geography and Physics - Biosciences{{{_:::_}}}Faculty of Science and Engineering{{{_:::_}}}School of Biosciences, Geography and Physics - Biosciences
url http://www.sciencedirect.com/science/article/pii/S0146638015000224
document_store_str 1
active_str 0
description Algaenan has been suggested to be one of the main precursors and contributors to kerogen deposits. Its aliphatic structure has been shown in a variety of microalgae strains. Algaenan is a non-hydrolysable and insoluble biomolecule with a very high molecular weight. There is considerable uncertainty about the formation and preservation of algaenan which led to the current kerogen formation and the implications on the global carbon cycle. We aim to prove our current hypothesis - that the cyanobacteria Chlorogloeopsis fritschii may synthesis a similar resistant biomacromolecule to algaenan. This could explain some of the discrepancies in the published literature concerning algaenan. The two microalgae Pseudochoricystis ellipsoidea and Scenedesmus obliquus as well as the cyanobacteria were subjected to harsh solvent extraction and hydrolysis steps to obtain the in-soluble and non-hydroysable macromolecule algaenan. The residues from all three strains were analysed by Pyrolysis-GC-MS and Solid-state NMR. The analysis revealed that the strain Chlorogloeopsis fritschii indeed contains algaenan or a resistant biomacromolecule very similar, exhibiting the characteristic aliphatic structure diagnostic to algaenan. Due to the robust nature of C. fritschii compared to the Eukaryotes to prevail extreme environments such as freezing, thawing, desiccation and overheating conditions which were prevalent in primeval earth, it could have significantly contributed to kerogen formation and the global carbon cycle.
published_date 2015-02-10T03:24:18Z
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score 11.037056

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