Microalgal proteins: Unveiling sustainable alternatives to address the protein challenge

Microalgae may serve as a sustainable protein source due to their high protein and amino acid content.

• Microalgae are rich in protein but are not easily digestible by humans because of their cell walls.
• Protein extraction technology faces inherent challenges that affect the efficiency of extracting microalgal protein.
• The formation of proteolytic products from microalgae is associated with various bioactivities, including antioxidant and immunomodulatory effects.
• Emerging microalgal protein foods, like baked goods and nutritional supplements, face sensory and marketing challenges.
• Consumer awareness about the health benefits of microalgae is low, complicating market acceptance.
• High production costs remain a significant barrier, prompting the development of multi-product utilization strategies.

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