Unleashing the potential of Dunaliella salina: Illuminating the secrets of growth

Immerse yourself in the fascinating world of microalgae and discover the impressive growth potential of Dunaliella salina. This microalgae species, known for its ability to rapidly adapt to osmotic changes, has attracted the attention of scientists worldwide. Dunaliella salina can not only change shape, but also produce valuable carotenoids such as β-carotene when exposed to light. Today we embark on an exciting research journey to explore the optimal conditions for Dunaliella salina growth by examining different media types and LED light sources.

How was it realized?

In this study, Dunaliella salina were obtained from brackish water aquaculture and cultured in 3-liter bottles. Three different treatments were performed, each with three repetitions. The media used were Walne Jepara, Walne Lampung and Za, supplemented with NPK fertilizer. To study the growth of microalgae, the cultures were illuminated with red and blue LED light sources. The density of Dunaliella salina cells was then carefully measured under a light microscope using a Neubauer counting chamber.

Discoveries and insights

Drum roll, please! The results revealed exciting insights into the growth preferences of Dunaliella salina. When surrounded by the warm glow of the red LED light and nourished in Walne Jepara medium, Dunaliella salina unfolded its full potential and reached an impressive density of 8.504 × 10^4 cells/mL. In comparison, the combination of blue LED light and the same medium achieved a density of 5.768 × 10^4 cells/mL. Statistical analysis confirmed that both media types and LED lights had a significant effect on Dunaliella salina growth.

What we have learned and next steps

The Walne Jepara medium proved to be outstanding, providing the ideal conditions for Dunaliella Salina growth. While the addition of Za fertilizer with NPK did not provide the optimal results, the captivating blue LED light also had its merits. These findings help us to optimize the growth conditions for Dunaliella Salina and develop its full potential. Through further collaboration between innovative technologies like Clitec and scientific expertise, we can deepen our understanding and pave the way for breakthrough advances in various fields.

Contribution from Clitec

In the quest to fully realize the potential of Dunaliella Salina, Clitec’s innovative technology can play an important role. Clitec’s state-of-the-art climate chambers provide the perfect environment to study the growth and behavior of microorganisms under controlled conditions. By simulating various environmental factors such as light intensity, temperature and nutrient composition, Clitec enables researchers to optimally adjust growth parameters for Dunaliella Salina. This collaboration between cutting-edge technology and scientific expertise enables the optimization of Dunaliella Salina growth, maximizes its productivity and opens up new application possibilities.


With the completion of this captivating journey into the growing secrets of Dunaliella, we come away with new knowledge and great enthusiasm. The red LED light and Walne Jepara medium proved to be the winning combination, demonstrating the remarkable growth potential of the microalgae. Through continued collaboration between pioneering technologies such as Clitec and scientific expertise, we can further explore the immense potential of Dunaliella Salina and enable breakthrough advances in a variety of areas.


Shifa Helena, Muhammad Zainuri, Jusup Suprijanto. (2016). Microalgae Dunaliella salina (Teodoresco, 1905) Growth Using the LED Light (Light Limiting Dioda) and Different Media. Aquatic Procedia, 7, 226-230. https://doi.org/10.1016/j.aqpro.2016.07.031