NEWS 22 FEED & ADDITIVE MAGAZINE June 2025 More pigments are being used in salmon feed than before, yet the colour of the fillet has become paler. In a recently concluded project, unveiled by Nofima, researchers found that stress reduces the colour intensity of fish fillets. The colour of the fillet is due to the salmon’s ability to store the pigment astaxanthin in its muscle. This pigment is produced by marine algae and is found in marine food chains. It is a powerful antioxidant, and salmon can also use it for synthesis of vitamin A. This vitamin has many important functions in the body, particularly for the immune system, skin and mucous membranes, fat metabolism, and vision. Both astaxanthin and vitamin A are added to salmon feed to ensure there is enough to guarantee good health and growth. The pink colour of the salmon fillet is also important for making it look appealing for the consumer. “However, the needs for vitamins and antioxidants may change when salmon are exposed to stress, and we still do not know enough about how the environment in which the salmon lives affects the colour of the fillet,” says Trine Ytrestøyl, Senior Scientist at Nofima. Stress leads to the formation of reactive compounds in the body that can damage cells. Antioxidants protect living organisms from damage by neutralising such compounds. Salmon exposed to stress may therefore have an increased need for antioxidants such as astaxanthin. Read more>> New Study: Stress in salmon reduces fillet colour Photo: Nofima Louis Dreyfus Company (LDC) inaugurated its new automated production line for the processing of specialty feed lecithin, located at the site of its existing oilseeds crushing plant in Tianjin, China, and operating on 100% renewable electricity. Developed with the support of LDC’s R&D center in Shanghai, the new line is expected to help meet growing demand – in China and globally – for specialty feed lecithin products such as enzymatically treated lecithin and low-viscosity lecithin. “Leveraging LDC’s processing and innovation capabilities, our new production line will enable us to offer customized solutions tailored to feed industry requirements, in line with our strategic growth plans to expand into downstream markets with more value-added products, and as part of our ongoing drive to enhance the offer to, and experience of, our customers,” said James Zhou, LDC’s Global Head of Food & Feed Solutions and Chief Commercial Officer for the Group. LDC explains that the line expands its lecithin offering to include: • enzymatically treated lecithin that enhances oil and fat-soluble nutrient absorption in animal feeds, contributing to higher feed efficiency and reduced animal husbandry costs; • low-viscosity lecithin that enables direct blending into feed, without requiring extreme heating or separate storage tanks. Read more>> Louis Dreyfus Company strengthens portfolio with lecithin production line Photo: Louis Dreyfus Company
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