Enhanced accumulation of alpha-linolenic acid rich lipids in indigenous freshwater microalga Desmodesmus sp.: The effect of low-temperature on nutrient replete, UV treated and nutrient stressed cultures
•Freshwater microalga Desmodesmus sp. produced ALA-rich lipids under low temperature, UV treatment and nutrient stress.•Low temperature led to a 1.8 fold increase in ALA fraction of total fatty acids.•UV treated cultures at low temperature showed a 2.6 fold increase in lipid content.•UV treated cult...
Gespeichert in:
Veröffentlicht in: | Bioresource technology 2019-02, Vol.273, p.404-415 |
---|---|
Hauptverfasser: | , , |
Format: | Artikel |
Sprache: | eng |
Schlagworte: | |
Online-Zugang: | Volltext |
Tags: |
Tag hinzufügen
Keine Tags, Fügen Sie den ersten Tag hinzu!
|
container_end_page | 415 |
---|---|
container_issue | |
container_start_page | 404 |
container_title | Bioresource technology |
container_volume | 273 |
creator | Sijil, P.V. Sarada, R. Chauhan, V.S. |
description | •Freshwater microalga Desmodesmus sp. produced ALA-rich lipids under low temperature, UV treatment and nutrient stress.•Low temperature led to a 1.8 fold increase in ALA fraction of total fatty acids.•UV treated cultures at low temperature showed a 2.6 fold increase in lipid content.•UV treated cultures at low temperature showed maximum ALA content of biomass.
The indigenous microalga, Desmodesmus sp. produced alpha-linolenic acid (ALA) rich lipids in response to low temperature and UV treatment. Incubation at 5 °C showed a 1.5 fold increase in lipid content (34% w/w) with 44% ALA fraction of total fatty acids. The UV treatment (UV 60 min) exhibited a 1.4 fold increase in biomass productivity and 1.6 fold increase in lipid content (37% w/w) with ALA fraction as 31% of total fatty acids. The nitrogen stress enhanced the lipid content (39% w/w) with a reduced ALA fraction (18%) of total fatty acids. The UV treated cultures (UV 40 and 60 min) on incubation at 5 °C showed maximum lipid accumulation (59 to 62% w/w) with ALA fraction of total fatty acids as 39 to 42%. The incubation of nutrient-replete and UV treated cultures at low-temperature could therefore be used for the production of ALA-rich lipids in microalgae. |
doi_str_mv | 10.1016/j.biortech.2018.11.028 |
format | Article |
fullrecord | <record><control><sourceid>proquest_cross</sourceid><recordid>TN_cdi_proquest_miscellaneous_2220881299</recordid><sourceformat>XML</sourceformat><sourcesystem>PC</sourcesystem><els_id>S0960852418315554</els_id><sourcerecordid>2220881299</sourcerecordid><originalsourceid>FETCH-LOGICAL-c438t-5d199335dc1fe3650a4984a00cf2e352faa9dfa9ef732d891901196377a23a153</originalsourceid><addsrcrecordid>eNqFkctuFDEQRVsIRIbAL0ResqAbP_rJChTCQ4rEJmFrOXY57ZHbbmx3In6Rr6JGk8AykmVL5Vt1S_dU1RmjDaOsf79vblxMBfTccMrGhrGG8vFZtWPjIGo-Df3zakenntZjx9uT6lXOe0qpYAN_WZ0I2vaCdu2u-nMRZhU0GKK03pbNq-JiINES5ddZ1d6F6CE4jf_OkOT0TLxbncnEBTzG3UKIWyY2QZ7vVYFEFqdTVP5Wkc-Ql2jwQkFemw_kagYC1oIuBwsf7-sCywpJlS0BQeOwleQgFJJg9VDgHbn-SUoCHIwrBvNfkLGaM1b15g_d-XX1wiqf4c3De1pdf7m4Ov9WX_74-v3802WtWzGWujNsmoTojGYWRN9R1U5jqyjVloPouFVqMlZNYAfBzTixiTI29WIYFBeKdeK0enucu6b4a4Nc5OKyBu9VAExCcs7pODKOLk9KmRjageMCKO2PUswu5wRWrsktKv2WjMoDcrmXj8jlAblkTCJybDx78NhuFjD_2h4Zo-DjUQAYyp2DJLPGBJG5SwhCmuie8vgLu8DFEA</addsrcrecordid><sourcetype>Aggregation Database</sourcetype><iscdi>true</iscdi><recordtype>article</recordtype><pqid>2137472498</pqid></control><display><type>article</type><title>Enhanced accumulation of alpha-linolenic acid rich lipids in indigenous freshwater microalga Desmodesmus sp.: The effect of low-temperature on nutrient replete, UV treated and nutrient stressed cultures</title><source>Elsevier ScienceDirect Journals</source><creator>Sijil, P.V. ; Sarada, R. ; Chauhan, V.S.</creator><creatorcontrib>Sijil, P.V. ; Sarada, R. ; Chauhan, V.S.</creatorcontrib><description>•Freshwater microalga Desmodesmus sp. produced ALA-rich lipids under low temperature, UV treatment and nutrient stress.•Low temperature led to a 1.8 fold increase in ALA fraction of total fatty acids.•UV treated cultures at low temperature showed a 2.6 fold increase in lipid content.•UV treated cultures at low temperature showed maximum ALA content of biomass.
The indigenous microalga, Desmodesmus sp. produced alpha-linolenic acid (ALA) rich lipids in response to low temperature and UV treatment. Incubation at 5 °C showed a 1.5 fold increase in lipid content (34% w/w) with 44% ALA fraction of total fatty acids. The UV treatment (UV 60 min) exhibited a 1.4 fold increase in biomass productivity and 1.6 fold increase in lipid content (37% w/w) with ALA fraction as 31% of total fatty acids. The nitrogen stress enhanced the lipid content (39% w/w) with a reduced ALA fraction (18%) of total fatty acids. The UV treated cultures (UV 40 and 60 min) on incubation at 5 °C showed maximum lipid accumulation (59 to 62% w/w) with ALA fraction of total fatty acids as 39 to 42%. The incubation of nutrient-replete and UV treated cultures at low-temperature could therefore be used for the production of ALA-rich lipids in microalgae.</description><identifier>ISSN: 0960-8524</identifier><identifier>EISSN: 1873-2976</identifier><identifier>DOI: 10.1016/j.biortech.2018.11.028</identifier><identifier>PMID: 30463054</identifier><language>eng</language><publisher>England: Elsevier Ltd</publisher><subject>Alpha-linolenic acid ; biomass production ; Desmodesmus ; Desmodesmus sp ; freshwater ; lipid content ; Low-temperature stress ; microalgae ; nitrogen ; Nutrient stress ; technology ; temperature ; ultraviolet radiation ; UV treatment</subject><ispartof>Bioresource technology, 2019-02, Vol.273, p.404-415</ispartof><rights>2018 Elsevier Ltd</rights><rights>Copyright © 2018 Elsevier Ltd. All rights reserved.</rights><lds50>peer_reviewed</lds50><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-c438t-5d199335dc1fe3650a4984a00cf2e352faa9dfa9ef732d891901196377a23a153</citedby><cites>FETCH-LOGICAL-c438t-5d199335dc1fe3650a4984a00cf2e352faa9dfa9ef732d891901196377a23a153</cites></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><linktohtml>$$Uhttps://www.sciencedirect.com/science/article/pii/S0960852418315554$$EHTML$$P50$$Gelsevier$$H</linktohtml><link.rule.ids>314,776,780,3537,27901,27902,65534</link.rule.ids><backlink>$$Uhttps://www.ncbi.nlm.nih.gov/pubmed/30463054$$D View this record in MEDLINE/PubMed$$Hfree_for_read</backlink></links><search><creatorcontrib>Sijil, P.V.</creatorcontrib><creatorcontrib>Sarada, R.</creatorcontrib><creatorcontrib>Chauhan, V.S.</creatorcontrib><title>Enhanced accumulation of alpha-linolenic acid rich lipids in indigenous freshwater microalga Desmodesmus sp.: The effect of low-temperature on nutrient replete, UV treated and nutrient stressed cultures</title><title>Bioresource technology</title><addtitle>Bioresour Technol</addtitle><description>•Freshwater microalga Desmodesmus sp. produced ALA-rich lipids under low temperature, UV treatment and nutrient stress.•Low temperature led to a 1.8 fold increase in ALA fraction of total fatty acids.•UV treated cultures at low temperature showed a 2.6 fold increase in lipid content.•UV treated cultures at low temperature showed maximum ALA content of biomass.
The indigenous microalga, Desmodesmus sp. produced alpha-linolenic acid (ALA) rich lipids in response to low temperature and UV treatment. Incubation at 5 °C showed a 1.5 fold increase in lipid content (34% w/w) with 44% ALA fraction of total fatty acids. The UV treatment (UV 60 min) exhibited a 1.4 fold increase in biomass productivity and 1.6 fold increase in lipid content (37% w/w) with ALA fraction as 31% of total fatty acids. The nitrogen stress enhanced the lipid content (39% w/w) with a reduced ALA fraction (18%) of total fatty acids. The UV treated cultures (UV 40 and 60 min) on incubation at 5 °C showed maximum lipid accumulation (59 to 62% w/w) with ALA fraction of total fatty acids as 39 to 42%. The incubation of nutrient-replete and UV treated cultures at low-temperature could therefore be used for the production of ALA-rich lipids in microalgae.</description><subject>Alpha-linolenic acid</subject><subject>biomass production</subject><subject>Desmodesmus</subject><subject>Desmodesmus sp</subject><subject>freshwater</subject><subject>lipid content</subject><subject>Low-temperature stress</subject><subject>microalgae</subject><subject>nitrogen</subject><subject>Nutrient stress</subject><subject>technology</subject><subject>temperature</subject><subject>ultraviolet radiation</subject><subject>UV treatment</subject><issn>0960-8524</issn><issn>1873-2976</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2019</creationdate><recordtype>article</recordtype><recordid>eNqFkctuFDEQRVsIRIbAL0ResqAbP_rJChTCQ4rEJmFrOXY57ZHbbmx3In6Rr6JGk8AykmVL5Vt1S_dU1RmjDaOsf79vblxMBfTccMrGhrGG8vFZtWPjIGo-Df3zakenntZjx9uT6lXOe0qpYAN_WZ0I2vaCdu2u-nMRZhU0GKK03pbNq-JiINES5ddZ1d6F6CE4jf_OkOT0TLxbncnEBTzG3UKIWyY2QZ7vVYFEFqdTVP5Wkc-Ql2jwQkFemw_kagYC1oIuBwsf7-sCywpJlS0BQeOwleQgFJJg9VDgHbn-SUoCHIwrBvNfkLGaM1b15g_d-XX1wiqf4c3De1pdf7m4Ov9WX_74-v3802WtWzGWujNsmoTojGYWRN9R1U5jqyjVloPouFVqMlZNYAfBzTixiTI29WIYFBeKdeK0enucu6b4a4Nc5OKyBu9VAExCcs7pODKOLk9KmRjageMCKO2PUswu5wRWrsktKv2WjMoDcrmXj8jlAblkTCJybDx78NhuFjD_2h4Zo-DjUQAYyp2DJLPGBJG5SwhCmuie8vgLu8DFEA</recordid><startdate>20190201</startdate><enddate>20190201</enddate><creator>Sijil, P.V.</creator><creator>Sarada, R.</creator><creator>Chauhan, V.S.</creator><general>Elsevier Ltd</general><scope>NPM</scope><scope>AAYXX</scope><scope>CITATION</scope><scope>7X8</scope><scope>7S9</scope><scope>L.6</scope></search><sort><creationdate>20190201</creationdate><title>Enhanced accumulation of alpha-linolenic acid rich lipids in indigenous freshwater microalga Desmodesmus sp.: The effect of low-temperature on nutrient replete, UV treated and nutrient stressed cultures</title><author>Sijil, P.V. ; Sarada, R. ; Chauhan, V.S.</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c438t-5d199335dc1fe3650a4984a00cf2e352faa9dfa9ef732d891901196377a23a153</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2019</creationdate><topic>Alpha-linolenic acid</topic><topic>biomass production</topic><topic>Desmodesmus</topic><topic>Desmodesmus sp</topic><topic>freshwater</topic><topic>lipid content</topic><topic>Low-temperature stress</topic><topic>microalgae</topic><topic>nitrogen</topic><topic>Nutrient stress</topic><topic>technology</topic><topic>temperature</topic><topic>ultraviolet radiation</topic><topic>UV treatment</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Sijil, P.V.</creatorcontrib><creatorcontrib>Sarada, R.</creatorcontrib><creatorcontrib>Chauhan, V.S.</creatorcontrib><collection>PubMed</collection><collection>CrossRef</collection><collection>MEDLINE - Academic</collection><collection>AGRICOLA</collection><collection>AGRICOLA - Academic</collection><jtitle>Bioresource technology</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Sijil, P.V.</au><au>Sarada, R.</au><au>Chauhan, V.S.</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Enhanced accumulation of alpha-linolenic acid rich lipids in indigenous freshwater microalga Desmodesmus sp.: The effect of low-temperature on nutrient replete, UV treated and nutrient stressed cultures</atitle><jtitle>Bioresource technology</jtitle><addtitle>Bioresour Technol</addtitle><date>2019-02-01</date><risdate>2019</risdate><volume>273</volume><spage>404</spage><epage>415</epage><pages>404-415</pages><issn>0960-8524</issn><eissn>1873-2976</eissn><abstract>•Freshwater microalga Desmodesmus sp. produced ALA-rich lipids under low temperature, UV treatment and nutrient stress.•Low temperature led to a 1.8 fold increase in ALA fraction of total fatty acids.•UV treated cultures at low temperature showed a 2.6 fold increase in lipid content.•UV treated cultures at low temperature showed maximum ALA content of biomass.
The indigenous microalga, Desmodesmus sp. produced alpha-linolenic acid (ALA) rich lipids in response to low temperature and UV treatment. Incubation at 5 °C showed a 1.5 fold increase in lipid content (34% w/w) with 44% ALA fraction of total fatty acids. The UV treatment (UV 60 min) exhibited a 1.4 fold increase in biomass productivity and 1.6 fold increase in lipid content (37% w/w) with ALA fraction as 31% of total fatty acids. The nitrogen stress enhanced the lipid content (39% w/w) with a reduced ALA fraction (18%) of total fatty acids. The UV treated cultures (UV 40 and 60 min) on incubation at 5 °C showed maximum lipid accumulation (59 to 62% w/w) with ALA fraction of total fatty acids as 39 to 42%. The incubation of nutrient-replete and UV treated cultures at low-temperature could therefore be used for the production of ALA-rich lipids in microalgae.</abstract><cop>England</cop><pub>Elsevier Ltd</pub><pmid>30463054</pmid><doi>10.1016/j.biortech.2018.11.028</doi><tpages>12</tpages></addata></record> |
fulltext | fulltext |
identifier | ISSN: 0960-8524 |
ispartof | Bioresource technology, 2019-02, Vol.273, p.404-415 |
issn | 0960-8524 1873-2976 |
language | eng |
recordid | cdi_proquest_miscellaneous_2220881299 |
source | Elsevier ScienceDirect Journals |
subjects | Alpha-linolenic acid biomass production Desmodesmus Desmodesmus sp freshwater lipid content Low-temperature stress microalgae nitrogen Nutrient stress technology temperature ultraviolet radiation UV treatment |
title | Enhanced accumulation of alpha-linolenic acid rich lipids in indigenous freshwater microalga Desmodesmus sp.: The effect of low-temperature on nutrient replete, UV treated and nutrient stressed cultures |
url | https://sfx.bib-bvb.de/sfx_tum?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&ctx_tim=2025-02-14T01%3A36%3A26IST&url_ver=Z39.88-2004&url_ctx_fmt=infofi/fmt:kev:mtx:ctx&rfr_id=info:sid/primo.exlibrisgroup.com:primo3-Article-proquest_cross&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.atitle=Enhanced%20accumulation%20of%20alpha-linolenic%20acid%20rich%20lipids%20in%20indigenous%20freshwater%20microalga%20Desmodesmus%20sp.:%20The%20effect%20of%20low-temperature%20on%20nutrient%20replete,%20UV%20treated%20and%20nutrient%20stressed%20cultures&rft.jtitle=Bioresource%20technology&rft.au=Sijil,%20P.V.&rft.date=2019-02-01&rft.volume=273&rft.spage=404&rft.epage=415&rft.pages=404-415&rft.issn=0960-8524&rft.eissn=1873-2976&rft_id=info:doi/10.1016/j.biortech.2018.11.028&rft_dat=%3Cproquest_cross%3E2220881299%3C/proquest_cross%3E%3Curl%3E%3C/url%3E&disable_directlink=true&sfx.directlink=off&sfx.report_link=0&rft_id=info:oai/&rft_pqid=2137472498&rft_id=info:pmid/30463054&rft_els_id=S0960852418315554&rfr_iscdi=true |