With the global population projected to surpass 9 billion by 2050, the demand for protein is expected to double. Traditional animal-based proteins come with environmental costs—high greenhouse gas emissions, significant land use, and extensive water consumption. To address these challenges, researchers are now focusing on sustainable protein sources derived from pulses, oilseed by-products, and microalgae.
A recent study explored the potential of raw materials like lentils, chickpeas, hazelnut cake, sunflower meal, and even microalgae such as Spirulina to produce protein concentrates (PCs) using standardized alkaline extraction and isoelectric precipitation methods.
Key Findings:
- High Protein Yield: Cold-pressed hazelnut cake showed the highest extraction yield (25.6%), while pea flour achieved the highest protein recovery yield (77%).
- Nutritional Quality: PCs exhibited well-balanced amino acid profiles, with sunflower meal and hazelnut cake showing high essential amino acid content.
- Functional Properties: Spirulina protein demonstrated exceptional solubility across various pH levels, making it ideal for beverages and functional foods.
- Sustainability Factor: Microalgae cultivation requires minimal land and water, making it an eco-friendly alternative to conventional protein sources.
Why It Matters:
This research highlights the nutritional, functional, and environmental benefits of diversifying protein sources. By utilizing agricultural by-products and microalgal biomass, we can reduce food waste, cut environmental impact, and meet the rising global protein demand sustainably.
As the plant-based and functional foods market grows, these findings pave the way for innovative, clean-label protein ingredients in everything from snacks to dietary supplements.
Reference
Özsoy, B., Yay, C., Yellice, A., Bıyıklı, B., Karaalioğlu, O., Güneşer, O., Yüceer, Y., Çiftçi, U., & İşleten Hoşoğlu, M. (2025). Screening of various raw materials and their protein concentrates: focus on alkaline extraction yields and physicochemical characterizations. European Food Research and Technology. https://doi.org/10.1007/s00217-025-04894-9
Related posts:
Boosting Sunflower Growth in Saline Soils: The Role of Phosphate-Solubilizing Bacteria and Phosphorus-Enriched Biochar
Botanical Solutions for Honeybee Pest Management: A Sustainable Alternative to Conventional Pesticides
Trehalose: The Sugar Shield Boosting Cold Tolerance in Beneficial Insects
Unlocking the Health Benefits of Edible Insects: Bioactive Compounds and Consumer Perceptions
Sustainable Chitosan Extraction from Black Soldier Fly Pupal Shells: A Breakthrough in Green Biotechnology
