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dc.contributor.authorLiu, Yu
dc.date.accessioned2018-03-28T18:14:46Z
dc.date.available2018-03-28T18:14:46Z
dc.identifier.urihttp://hdl.handle.net/10222/73792
dc.descriptionThe goals of this study were to investigate the potential of minkery wastewater as microalgae culture mediums and the nutrient removal capacity of H. pluvialis in the cultivation stage; and to determine the ability of H. pluvialis to accumulate carotenoids under stress conditions, such as light intensity, acetate, and salinity, in minkery wastewater cultures in the induction stage.en_US
dc.description.abstractHaematococcus pluvialis (H. pluvialis) is a green freshwater microalgae species, well known for its ability for astaxanthin accumulation. In this study, minkery wastewater (MW) was used as nutrient resource for the cultivation of H. pluvialis, which was able to achieve an energy and cost-efficient production strategy. The findings indicated that H. pluvialis grew well in diluted MW. The maximum biomass and astaxanthin production was obtained in 1.5% MW cultures with successful removal of nitrogen, yielding at 906.33 ±34.0 mg/L and 39.72±1.69 mg/L, respectively. Acetate and NaCl were introduced as stress factors to improve the astaxanthin production. Response surface methodology found the optimal combination of stress factors for yield, consequently, resultant astaxanthin content can reach 67.95 ± 3.93 mg/L after 12-day induction period. These findings confirmed the potential use of MW in Haematococcus cultures for both biomass and astaxanthin production as compared to conventional culture medium.en_US
dc.language.isoen_USen_US
dc.subjectMicroalgaeen_US
dc.subjectBiomass productionen_US
dc.subjectAstaxanthinen_US
dc.subjectMinkery wastewateren_US
dc.titleOptimization study of biomass and astaxanthin production by Haematococcus pluvialis under minkery wastewater culturesen_US
dc.typeThesisen_US
dc.date.defence2018-03-06
dc.contributor.departmentFaculty of Agricultureen_US
dc.contributor.degreeMaster of Scienceen_US
dc.contributor.external-examinern/aen_US
dc.contributor.graduate-coordinatorDr. Haibo Niuen_US
dc.contributor.thesis-readerDr. Haibo Niuen_US
dc.contributor.thesis-readerDr. Sophia Heen_US
dc.contributor.thesis-supervisorDr. Qamar Zamanen_US
dc.contributor.ethics-approvalNot Applicableen_US
dc.contributor.manuscriptsNot Applicableen_US
dc.contributor.copyright-releaseNot Applicableen_US
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