B2E Technological Sonar Initiative #36
Exciting breakthroughs are shaping a sustainable future! From microbial processes creating high-quality protein to eco-friendly fishmeal alternatives and greenhouse gas reduction in ponds, innovation is transforming the industry. Meanwhile, new eDNA methods and algae-based compounds are advancing environmental monitoring and health treatments. Explore these game-changing developments and see how they pave the way for tomorrow’s solutions!
AQUACULTURE
Microbial-based process for high-quality protein concentrate
This bio-based process enables the production of a high-quality protein concentrate (HQPC) through the conversion of plant-derived cellulose into bioavailable protein by aerobic incubation, including the use of the HQPC thus produced as a nutrient, including its use as a fishmeal substitute in aquaculture diets.
Patentscope
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Poultry by-product meal and fish oil alternatives in rainbow trout: A FEEDNETICS™ study
This study investigates new feed formulations for rainbow trout, replacing fishmeal with poultry by-product meal (PBM) and fish oil with algae oil, for 90 days. The results showed that PBM maintained growth and intestinal health, improved fatty acid profiles, and proved economically viable with FEEDNETICS™ validation.
PubMed
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Greenhouse gas collecting device for aquaculture ponds
This innovation consists of a device to collect greenhouse gases (GHG) from the water’s surface in aquaculture tanks, to efficiently monitor and manage emissions such as methane and carbon dioxide in these environments.
Espacenet
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LIVING MARINE RESOURCES
Preservative effect of alga flour extract on frozen horse mackerel (Trachurus trachurus) lipids
The study assessed the preservative effects of Gelidium sp. algae meal in glazing media for frozen horse mackerel (Trachurus trachurus) at -18°C. Different concentrations of the algae extract were tested in comparison with a control group glazed only with water. The results showed that the algae meal reduced lipid oxidation and the formation of trimethylamine (TMA) while improving the quality of the fatty acids in the fish. The average concentration of seaweed extract provided the best preservation effects during the storage period.
PubMed
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Oyster shell-based indirect carbonation integrated with probiotic encapsulation
Recycling oyster shells can reduce marine pollution and help encapsulate probiotics. This study combines indirect carbonation with encapsulation of probiotics using calcium carbonate from oyster shells. The survival rate of the encapsulated probiotics was high, showing resistance to gastrointestinal and bile fluids, thus offering an ecological solution for better delivery of probiotics.
PubMed
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MARINE BIOTECHNOLOGY
Novel eDNA approach may enhance aquaculture monitoring
A new eDNA method for monitoring conditions around marine fish farms could speed up sediment assessments by providing accurate environmental data. The traditional method of benthic monitoring, which is based on the manual identification of invertebrates, is time-consuming and expensive. This process can take up to three days per sample and involves high costs for the aquaculture sector. This approach can be replaced by more modern techniques, such as the use of eDNA, which provides quick and accurate information about the environment, reducing the time and costs involved in monitoring biodiversity.
TheFishSite
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Phloroglucinol-ZnO nanoparticles from macroalgae for lung cancer treatment
This study extracted and purified phloroglucinol (PHL) from Rosenvingea intricata, known for its antioxidant and anticancer effects. PHL was combined with PEGylated zinc oxide nanoparticles (ZnO NPs), enhancing therapeutic activity. The ZnO-PEG-PHL NPs showed superior antioxidant performance and a lower IC50 value against A549 lung cancer cells compared to PHL or ZnO NPs alone.
PubMed
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New green biorefinery strategies to valorize bioactive fractions from palmaria palmata
A biorefinery process was developed to extract valuable compounds from Palmaria palmata using ultrasound-assisted and pressurized liquid extraction with natural deep eutectic solvents (NaDESs). PLE proved more effective, and NaDESs preserved phycobiliprotein color over time, supporting sustainable marine resource recovery.
PubMed
