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Aquaculture is evolving toward increasingly integrated and circular systems, where efficient resource management intersects with the production of high-value biomass. From the optimized cultivation of microalgae to their conversion into bioactive compounds and functional bioproducts, these approaches illustrate how marine biotechnology is redefining value chains and opening new opportunities for sustainable food production.
Updates in the April edition of Sonar Tecnológico.
Integrated Multi-Trophic Aquaculture Filter for Recirculating Aquaculture System
An integrated biofilter for a recirculating aquaculture system that combines multiple treatment stages. It includes a moving bed biofilm reactor (MBBR) for bacterial growth and nitrification, thereby generating biomass. It further incorporates periphyton and halophyte biofilters to oxygenate the water and remove nutrients, producing edible plant biomass.
Patentscope
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Continuous Algae Cultivation Photoreaction Device
Continuous photoreactor device for algae cultivation with enhanced light distribution. Includes a base, light-transmitting tank, outer casing, and upper cover.
Uses an omnidirectional lamp and reflective inner surfaces to maximize light exposure. Improves light scattering and coverage, significantly increasing photoreaction efficiency.
Patentscope
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Method For Producing Biotechnological Products Comprising Fermented Algae
Method for producing a biotechnological product based on fermented algae.
Enhances agricultural performance, nutritional value, and bioavailability of algae. Designed for use in agriculture, food, and cosmetic applications.
Also enables functional compounds production and reduces undesirable sensory characteristics.
Patentscope
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Intensification of Palmaria Palmata Protein Biorefinery Using Multifrequency Ultrasonication and Enzymes
The study explores protein extraction from the red seaweed Palmaria Palmata using ultrasound-assisted and enzyme-assisted processes. High-frequency ultrasound combined with enzymes significantly improves total protein yield compared to traditional methods. Synergistic effects between acoustic fields and enzymes enhance cell wall disruption and extraction efficiency. The work introduces enzyme-assisted high-frequency ultrasound extraction (EAUE) as a novel process intensification strategy for seaweed biorefinery applications.
PMC
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Biostimulants and Enhancement Thereof in Spirulina
A biostimulant composition combines bioavailable vitamin B12 with phenylalanine and lysine to increase soil organic carbon and crop growth through synergistic effects. These bioactive compounds can be derived from microalgae or cyanobacteria such as Spirulina and Nannochloropsis. Controlled algal cultivation is used to enhance the production of B12 and amino acids. The process can be integrated with other industries to improve the overall efficiency of biostimulant production.
Patentscope
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The Use of Spirulina Powder to Enrich Honey with Antioxidants and Highly Digestible Protein
The study investigated the enrichment of rapeseed honey with Spirulina powder (0.15 -1.2%) to enhance its nutritional value. The results showed that 1.2% Spirulina significantly increased digestible protein content and antioxidant capacity. These improvements remained stable over 6 months of storage at room temperature. The Spirulina-enriched honey was identified as a promising functional food with beneficial health properties.
PMC
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