Tetradesmus obliquus

Tetradesmus obliquus is a green microalgal species belonging to the Scenedesmaceae family. Widely recognized in previous scientific literature as Scenedesmus obliquus, this organism has gained significant importance in industrial biotechnology as a model strain for mass cultivation due to its robust growth rate and metabolic flexibility.

Originating from various freshwater habitats worldwide, this species demonstrates a broad geographic distribution. It is highly adaptable to different environmental conditions, making it suitable for large-scale production in open ponds, raceway systems, and closed photobioreactors across diverse climates.

Botanically, the organism typically appears as a coenobium, a colony usually composed of four spindle-shaped cells arranged side by side. The cells are characterized by their oblique, tapered ends and contain a single parietal chloroplast. They are capable of rapid biomass accumulation under nutrient-sufficient conditions.

Agrotechnical requirements for the culture include high solar irradiation, controlled pH levels, and a stable supply of macronutrients such as nitrogen and phosphorus. Optimization of cultivation parameters is crucial to prevent contamination by other algae or protozoa. Modern systems often utilize flue gas as a cost-effective source of carbon dioxide to boost photosynthetic efficiency.

The practical applications of this microalgae are extensive and include:

• Feedstock for the production of biodiesel and sustainable bioenergy.
• A protein-rich nutritional supplement for aquaculture and livestock.
• Bioremediation of industrial wastewater and agricultural runoff.
• Source of antioxidants, carotenoids, and other valuable biocompounds.