Assessment of microalgae cell culture growth regulatory mechanism towards different medium formulation, light intensity and photoperiod

Othman, Rashidi and Shaharuddin, Ruhul Izzati and Wan Sulaiman, Wan Syibrah Hanisah (2017) Assessment of microalgae cell culture growth regulatory mechanism towards different medium formulation, light intensity and photoperiod. In: 8th Asian Pacific Phycological Forum, 8th-13th October 2017, Kuala Lumpur. (Unpublished)

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Abstract

The cell culture growth regulatory mechanism for microalgae is depending on various factors such as medium composition, light intensity and photoperiod. Significantly, it will influence economical important through productivity of large scale microalgae for commercialization in order to achieve the maximum growth. In the present study, effects of different culture medium, light intensity and photoperiod were investigated through batch culture of two groups of algae which are cyanobacteria (blue green algae) and green algae. The blue green algae species that consist of Pseudanabanae sp. and Synechochoccus sp. while the green algae consist of Pandorina morum and Chlorella vulgaris were tested in four different medium (Chu 10, Bg11, Bristol’s and Bold’s Basal Medium) with five photoperiod cycle (Light: Dark) , 0:24, 12:12, 18:6, 16:8, and 24:0. The results revealed that all species with high optimal growth in the BG-11 medium under a light intensity of 60 lmol m-2 s-1 and 12:12 (Light: Dark) cycle. However, cyanobacteria well grew in the dark. Colour changes are valued with CIELAB Reflectance Colorimeter. The colour pigmentation changed from green to yellowish was observed in Chu 10. The cell of algae pigmentation is normal in BG 11. Thus, optimization of growth rate for microalgae has a different value according to species and factors influences.

Item Type:	Conference or Workshop Item (Speech/Talk)
Additional Information:	3842/59004
Uncontrolled Keywords:	regulatory mechanism, cell culture, up-regulation, institutive, constitutive
Subjects:	S Agriculture > SB Plant culture T Technology > TP Chemical technology T Technology > TP Chemical technology > TP248.13 Biotechnology
Kulliyyahs/Centres/Divisions/Institutes (Can select more than one option. Press CONTROL button):	Kulliyyah of Architecture and Environmental Design > Department of Landscape Architecture International Institute for Halal Research and Training (INHART) Kulliyyah of Architecture and Environmental Design
Depositing User:	Dr rashidi othman
Date Deposited:	02 Nov 2017 15:48
Last Modified:	06 Nov 2019 13:25
URI:	http://irep.iium.edu.my/id/eprint/59004

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