Presentation on Spirulina

1. Submitted by :
Domni

2. Mass Cultivation of
Spirulina
Spirulina is known for its exceptional nutritional profile, making it
valuable as a functional food and dietary supplement. Let's explore
its cultivation and applications.
KS

3. Growth Medium and Nutrient Requirements
Growth Medium
Zarrouk, BG11, and modified Chu
media are highly effective for
Spirulina cultivation.
Nutrient Requirements
Metabolic processes of Spirulina rely
on carbon and nitrogen sources,
phosphorus, and trace minerals.
Photosynthesis
Sodium bicarbonate is a significant
carbon source for photosynthesis.
Protein Synthesis
Sodium nitrate or urea acts as nitrogen sources for protein synthesis.

4. Photobioreactor Systems for Mass Cultivation
1
Controlled Environment
Photobioreactors offer controlled environments for efficient
mass cultivation of Spirulina.
2
Types of Photobioreactors
Open pond systems, closed loop system, and hybrid
systems are commonly used for commercial cultivation.
3
Benefits of Photobioreactors
Higher yields, improved purity, and reduced contamination
risks are some benefits of photobioreactors.

5. Environmental Factors for Spirulina Growth
Temperature
Ideal temperature is
between 30°C and 35°C.
Light Intensity
A light intensity of 150-200
µmol photons/m2/s is
optimal for growth.
pH Level
The ideal range for pH is
8.0-11.0.
Carbon Dioxide
(CO2)
An adequate supply of CO2
is critical for photosynthesis
and growth.

6. Harvesting and Biomass Extraction Techniques
Mesh Filtration
Mesh filtration is an efficient method for
harvesting Spirulina biomass.
Centrifugation
Centrifugation is commonly used for
biomass extraction from Spirulina
cultures.
Drying
Drying is the most common method to
preserve and stabilize Spirulina biomass.

7. Nutritional Profile of Spirulina
1
High-Protein Content
Spirulina contains 55-70g of protein per 100g of dry weight.
2
Essential Nutrients
Spirulina is rich in B vitamins, iron, calcium, and other
essential minerals.
3
Plant-Based Protein
Spirulina's balanced profile of essential amino acids makes it
a valuable source of plant-based protein.

8. Comparison with Other Foods
Nutrient
Comparison(per
100g)
Spirulina Chicken Breast Spinach Cow's Milk
Protein 60-70g 31g 2.9g 3.2g
Iron 28.5mg 0.8mg 2.7mg 0.1mg
Calcium 12mg 10mg 99mg 120mg
Vitamin B12 24µg 0.3µg - 0.4µg

9. Quality Control and Standardization
1 Consistent Quality and Purity
Rigorous quality control measures and standardized production protocols are necessary for ensuring consistent quality and
purity of Spirulina products.

10. Sustainability and
Environmental Impact
1 Resource
Consumption
The mass cultivation of
Spirulina requires water,
energy, and land resources.
2 Addressing
Challenges
Researchers and industry
professionals must address
these challenges to
minimize environmental
impact and promote
sustainable cultivation
practices.

11. Novel Applications and
Biotechnological
Advancements
1 Various Industries
Spirulina has potential
applications in various fields
like pharmaceuticals,
bioplastics, and waste
valorization.
2 Continuous
Development
Continuously researching
and developing new
applications of Spirulina can
lead to beneficial
biotechnological
advancements.

12. Conclusion
Nutrient-Dense Solution
Spirulina's nutritional profile makes it a valuable addition to
diets, particularly for individuals following a vegetarian or
vegan lifestyle.
Promising Future
Spirulina is expected to play a significant role in meeting the
growing demand for sustainable and nutritious solutions.