Effect of photoperiod regimes on the cultivation of Nannochloropsis sp. in palm oil mill effluent for lipid production

Karthiani, Kanagesan and Palanisamy, Karthick Murugan and Rameshprabu, Ramaraj and Mohd Hasbi, Ab Rahim and Govindan, Natanamurugaraj and Maniam, Gaanty Pragas (2021) Effect of photoperiod regimes on the cultivation of Nannochloropsis sp. in palm oil mill effluent for lipid production. In: 1st Postgraduate Sseminar On Agriculture And Forestry 2021 (PSAF2021) Enhancing Knowledge Through Research e-prosiding , 6 Oktober 2021 , Webex Meet (Online). pp. 101-107.. ISBN 978-967-26369 (Online)

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Microalgae require a photoperiod (light:dark) regime for effective photosynthesis. Photoperiod regimes affect the development and metabolic processes of microalgae. The purpose of this research was to investigate the impacts of continuous illumination vs. photoperiod conditions on growth and biomass content in Nannochloropsis sp., with an emphasis on bioactive components such as lipids. The impacts of photoperiod regimes on the development of Nannochloropsis sp. were investigated to maximize microalgal output in massive culture systems and lipid content. Nannochloropsis sp. was grown aseptically in 10% POME for 14 days under four different photoperiod regimes (24:00, 18:06, 12:12, and 06:08 h light:dark). The findings revealed that varying photoperiods had a significant impact on Nannochloropsis sp. growth and lipid accumulation. Nannochloropsis sp. showed improved cell growth under 18:06 h light: dark after 14 days of flask cultivation, with a highest dry biomass of 0.712 g L-1 and recovered 29.5% lipid. By altering the photoperiod, this work shows an alternative strategy to stimulate development and intracellular lipid accumulation of Nannochloropsis sp.

Item Type: Conference or Workshop Item (Paper)
Additional Information: PSAF2021 e-prosiding
Uncontrolled Keywords: Microalgae; nannochloropsis sp.; POME; Photoperiod; Growth; Lipid
Subjects: H Social Sciences > HD Industries. Land use. Labor
H Social Sciences > HD Industries. Land use. Labor > HD28 Management. Industrial Management
Faculty/Division: Faculty of Industrial Sciences And Technology
Institute of Postgraduate Studies
Centre of Excellence: Earth Resources & Sustainability Centre (ERAS)
Depositing User: Miss. Ratna Wilis Haryati Mustapa
Date Deposited: 09 Dec 2021 08:33
Last Modified: 09 Dec 2021 08:33
URI: http://umpir.ump.edu.my/id/eprint/32795
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