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| Algae | Use |
| Chlorella | Used in cough syrups |
Importance of algae
50% of CO2 fixation on earth is carried out by algae during photosynthesis.
Algae as food :
a. About 70 species of marine algae are used as food. Example - Porphyra, Sargassum, Laminaria, etc.
b. Unicellular algae like Chlorella and Spirulina are rich in proteins and also used by space travellers.
Water holding chemicals (hydrocolloids) - Algin (obtained from red algae) and Carragenin (obtained from red algae) are commercially used hydrocolloids.
50% of CO2 fixation on earth is carried out by algae during photosynthesis.
Algae as food :
a. About 70 species of marine algae are used as food. Example - Porphyra, Sargassum, Laminaria, etc.
b. Unicellular algae like Chlorella and Spirulina are rich in proteins and also used by space travellers.
Water holding chemicals (hydrocolloids) - Algin (obtained from red algae) and Carragenin (obtained from red algae) are commercially used hydrocolloids.
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