Photo- and autoxidation of unsaturated algal lipids in the marine environment: An overview of processes, their potential tracers, and limitations
dc.contributor.author | Rontani, J-F | |
dc.contributor.author | Belt, Simon | |
dc.date.accessioned | 2020-03-09T11:55:59Z | |
dc.date.issued | 2020-01 | |
dc.identifier.issn | 0146-6380 | |
dc.identifier.issn | 1873-5290 | |
dc.identifier.other | 103941 | |
dc.identifier.uri | http://hdl.handle.net/10026.1/15437 | |
dc.description.abstract |
This paper provides an overview of results obtained in the course of recent studies dealing with abiotic degradation of algal lipids in the marine realm. In the first part, the photooxidation of the main lipid components (chlorophyll phytyl chain, carotenoids, Δ5-sterols, unsaturated fatty acids, alkenones and unsaturated alkenes) in senescent phytoplanktonic cells is examined. Type II photosensitized oxidation processes (i.e. involving singlet oxygen) play a key role in the photooxidation of these compounds. The second part of the paper describes free radical oxidation of the main lipids in senescent phytoplanktonic cells. These processes, which are believed to be induced by homolytic cleavage of photochemically produced hydroperoxides, involve the direct reaction of molecular oxygen in its triplet ground state with organic compounds under relatively mild conditions. Particular attention is given to the characterisation of pathway-specific tracers of the individual abiotic reactions described. Some of these compounds appear to have the potential to provide qualitative or semi-quantitative information about photooxidation, autoxidation, or the total abiotic degradation state of individual or groups of organisms. On the other hand, some other primary oxidation products are likely too susceptible to further degradation to permit reliable quantitative estimates, but can, nonetheless, provide a qualitative indication of photooxidation and autoxidation. | |
dc.format.extent | 103941-103941 | |
dc.language | en | |
dc.language.iso | en | |
dc.publisher | Elsevier BV | |
dc.subject | Photooxidation | |
dc.subject | Singlet oxygen | |
dc.subject | Free radical oxidation | |
dc.subject | Autoxidation | |
dc.subject | Lipids | |
dc.subject | Phytoplanktonic cells | |
dc.subject | Senescence | |
dc.subject | Tracers | |
dc.title | Photo- and autoxidation of unsaturated algal lipids in the marine environment: An overview of processes, their potential tracers, and limitations | |
dc.type | journal-article | |
dc.type | Review | |
dc.type | Journal | |
plymouth.author-url | https://www.webofscience.com/api/gateway?GWVersion=2&SrcApp=PARTNER_APP&SrcAuth=LinksAMR&KeyUT=WOS:000507334600004&DestLinkType=FullRecord&DestApp=ALL_WOS&UsrCustomerID=11bb513d99f797142bcfeffcc58ea008 | |
plymouth.volume | 139 | |
plymouth.publication-status | Published | |
plymouth.journal | Organic Geochemistry | |
dc.identifier.doi | 10.1016/j.orggeochem.2019.103941 | |
plymouth.organisational-group | /Plymouth | |
plymouth.organisational-group | /Plymouth/Faculty of Science and Engineering | |
plymouth.organisational-group | /Plymouth/Faculty of Science and Engineering/School of Geography, Earth and Environmental Sciences | |
plymouth.organisational-group | /Plymouth/REF 2021 Researchers by UoA | |
plymouth.organisational-group | /Plymouth/REF 2021 Researchers by UoA/UoA07 Earth Systems and Environmental Sciences | |
plymouth.organisational-group | /Plymouth/Research Groups | |
plymouth.organisational-group | /Plymouth/Research Groups/Marine Institute | |
plymouth.organisational-group | /Plymouth/Users by role | |
plymouth.organisational-group | /Plymouth/Users by role/Academics | |
plymouth.organisational-group | /Plymouth/Users by role/Researchers in ResearchFish submission | |
dcterms.dateAccepted | 2019-10-07 | |
dc.rights.embargodate | 2020-10-8 | |
dc.identifier.eissn | 1873-5290 | |
dc.rights.embargoperiod | Not known | |
rioxxterms.versionofrecord | 10.1016/j.orggeochem.2019.103941 | |
rioxxterms.licenseref.uri | http://www.rioxx.net/licenses/all-rights-reserved | |
rioxxterms.licenseref.startdate | 2020-01 | |
rioxxterms.type | Journal Article/Review |