Publication:
Effects of Mg2+, Fe3+, Mn2+ and Cu2+ Ions on Lipid Accumulation by Cunninghamella bainieri 2A1

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dc.contributor.authorManikan, Ven_US
dc.contributor.authorKalil, MSen_US
dc.contributor.authorOmar, Oen_US
dc.contributor.authorKader, AJAen_US
dc.contributor.authorHamid, AAen_US
dc.date.accessioned2024-05-29T03:25:42Z
dc.date.available2024-05-29T03:25:42Z
dc.date.issued2014
dc.description.abstractCunninghamella bainieri 2A1 is an oleaginous fungus whose lipid accumulation profile is significantly influenced by metal ion concentrations in growth medium. Mg2+, Fe3+, Mn2+ and Cu2+ were found to be the important elements affecting lipid accumulation in this fungus. This study employs a statistical method (Response Surface Methodology -RSM) to study the combined effects of Mg2+, Fe3+, Mn2+ and Cu2+ on lipid accumulation of C. baineri 2A1. Cultivation was carried out in 250 mL Erlenmeyer flasks containing 100 mL nitrogen limited medium at 30 degrees C and 250 rpm agitation for 120 h. A thirty-run central composite design experiment was employed to identify and optimize the significant factors. In addition to Mg2(+) and Fe3(+) which were shown to have significant effects on lipid accumulation, the interactions between Mg2+ and Cu2+, as well as the effect of Cu2+ in quadratic terms were also found to have significant effect on the process (p< 0.05). The highest amount of lipid obtained in this study was 39% g/g biomass with optimal levels of Mg2+, Fe3+ and Cu2+ at 5.00, 0.017 and 0.0005 g/L, respectively, while Mn2+ was omitted. A 32% increment in lipid yield was recorded, where the lipid content increased to 38%, compared to initial yield of 29% g/g biomass prior to optimization. In conclusion, Mg2+ and Fe3+ have significant positive effect on the lipid accumulation of this fungus, whereas Mn2+ and Cu2+ exert negative effects in combination.
dc.identifier.epage449
dc.identifier.issn0126-6039
dc.identifier.issue3
dc.identifier.scopusWOS:000332288600015
dc.identifier.spage443
dc.identifier.urihttps://oarep.usim.edu.my/handle/123456789/12011
dc.identifier.volume43
dc.languageEnglish
dc.language.isoen_US
dc.publisherUniv Kebangsaan Malaysiaen_US
dc.relation.ispartofSains Malaysiana
dc.sourceWeb Of Science (ISI)
dc.subjectCunninghamellaen_US
dc.subjectmetal ionsen_US
dc.subjectresponse surface methodologyen_US
dc.subjectsingle cell oilen_US
dc.titleEffects of Mg2+, Fe3+, Mn2+ and Cu2+ Ions on Lipid Accumulation by Cunninghamella bainieri 2A1
dc.typeArticleen_US
dspace.entity.typePublication

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