Exciting advances are shaping a more sustainable future! From microbial processes that create high-quality proteins to eco-friendly alternatives to fishmeal and greenhouse gas reduction in tanks, innovation is transforming the industry. Meanwhile, new methods of eDNA and algae-based compounds are driving environmental evolution and health treatments. Explore these revolutionary developments and see how they are paving the way for tomorrow’s solutions!

AQUACULTURE

Bio-based process for obtaining a 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 substitute for fish meal in aquaculture diets.

Patentscope
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Alternatives to poultry by-product meal and fish oil in rainbow trout: A FEEDNETICS™ study

This study investigates new feed formulations for rainbow trout, replacing fish meal with poultry by-product meal (PBM) and fish oil with algae oil, over a period of 90 days. The results showed that PBM maintained growth and intestinal health, improved fatty acid profiles, and proved to be economically viable with FEEDNETICS™ validation.

PubMed
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Device for collecting greenhouse gases in aquaculture tanks

This innovation consists of a device for collecting greenhouse gases (GHG) from the water surface in aquaculture tanks, with the aim of efficiently monitoring and managing emissions such as methane and carbon dioxide in these environments.

Espacenet
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LIVE MARINE RESOURCES

Preservative effect of seaweed flour extract on the lipids of frozen horse mackerel (Trachurus trachurus)

The study assessed the preservative effects of Gelidium sp. seaweed flour in glazing media for frozen horse mackerel (Trachurus trachurus) at -18°C. Different concentrations of seaweed extract were tested in comparison with a control group glazed with water only. The results showed that seaweed flour reduced lipid oxidation and trimethylamine (TMA) formation, while improving the quality of 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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Indirect carbonation based on oyster shells integrated with probiotic encapsulation

Recycling oyster shells can reduce marine pollution and aid in the encapsulation of probiotics. This study combines indirect carbonation with probiotic encapsulation using calcium carbonate from oyster shells. The survival rate of encapsulated probiotics was high, showing resistance to gastrointestinal and bile fluids, thus offering an environmentally friendly solution for improved probiotic delivery.

PubMed
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MARINE BIOTECHNOLOGY

New eDNA approach could improve 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 relies on manual identification of invertebrates, is time-consuming and costly. This process can take up to three days per sample and entails high costs for the aquaculture sector. This approach can be replaced by more modern techniques, such as the use of eDNA, which provides rapid and accurate information about the environment, reducing the time and costs involved in monitoring biodiversity.

TheFishSite
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Macroalgae-derived phloroglucinol-ZnO nanoparticles 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), improving therapeutic activity. ZnO-PEG-PHL nanoparticles demonstrated superior antioxidant performance and a lower IC50 value against A549 lung cancer cells compared to PHL or ZnO nanoparticles alone.

PubMed
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New green biorefinery strategies to valorize bioactive fractions of Palmaria palmata

A biorefinery process was developed to extract valuable compounds from Palmaria palmata using ultrasound-assisted extraction and pressurized liquid extraction with natural eutectic solvents (NaDESs). Pressurized liquid extraction (PLE) proved to be more effective, and NaDESs preserved the color of phycobiliproteins over time, supporting the sustainable recovery of marine resources.

PubMed
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