Thesis Study on the Effect of Light and Salt Concentration on Growth and Biochemical Structure of Some Marine Microalges (Nannochloropsis oculata, Tetraselmis chuii, Chlorella sp. And Dunaliella salina)

One of the indicators that shows how much we give particular importance to R&D studies is that we willingly contribute in academic studies of universities. Our company has always been and will continue to be open to support requests from related faculties of our universities. We are proud to be able to contribute to the development of scientific methods and conducting researches, and to share our knowledge, with the awareness that our industry will progress in this way in national and global terms and reach the levels that can meet the increasing nutritional needs of the world population.

Below, you can find the post graduate project  which we contributed with our facilities’ resources that our company has:

EGE UNIVERSITY, INSTITUTE of SCIENCE
PhD Dissertation

Effect of Light and Salt Concentration on Growth and Biochemical Structure of Some Marine Microalges (Nannochloropsis oculata, Tetraselmis chuii, Chlorella sp. And Dunaliella salina)

PİRİNÇ, Pınar
PhD in Department of Fisheries Aquaculture
Supervisor: Assoc. Prof. Dr. Yaşar DURMAZ
September 2014, 88 pages

Acknowledgements: I thank Akvatek Aquaculture Inc. for providing the necessary cultures of the species and  all resources  throughout this study.

Abstract

In this study, it has aimed that Nannochloropsis oculata, Tetraselmis chuii, Dunaliella salina and marine Chlorella sp., microalgae species were examined effects on growth in different light sources (fluorescent lamp, yellow led, white led, red-blue led light systems and energy-saving bulb) and different salinity and to determine the optimum salinity concentration and light source for the culture. Cultures growth in flask were enriched with F/2 medium, ıt has arranged to be pH 8, culture temperature to be 22±2ºC and the study was performed in triplicate.

As a result of experiment, in different light sources, the highest cell density in Nannochloropsis oculata at energy-saving bulb and fluorescent, in Tetraselmis chuii fluorescent and yellow led, Dunaliella salina energy-saving bulb, in marine Chlorella sp. energy-saving bulb and fluorescent was obtained. In different salinity concentration, the highest cell density for Nannochloropsis oculata was obtained at ‰20 between ‰30 concentrations of salinity, for Tetraselmis chuii the highest cell density was determined at ‰30 and ‰40 concentrations of salinity. For Dunaliella salina microalga, the highest cell density was obtained at ‰40 concentrations of salinity. Result of experiment, ıt was identified that benefit led system as light source in photobioreactor decrease of cost about %50 compared to fluorescent system.

Keywords: Nannochloropsis oculata, Tetraselmis chuii, Dunaliella salina, marine Chlorella sp., Salinity, Light, Biomass, Beta carotene.

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