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Seaweed Phenolics as Natural Antioxidants, Aquafeed Additives, Veterinary Treatments and Cross-Linkers for Microencapsulation
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posted on 2022-09-29, 09:26 authored by T Gunathilake, T O Akanbi, Hafiz SuleriaHafiz Suleria, Tim NalderTim Nalder, David FrancisDavid Francis, Colin BarrowColin BarrowDriven by consumer demand and government policies, synthetic additives in aquafeed require substitution with sustainable and natural alternatives. Seaweeds have been shown to be a sustainable marine source of novel bioactive phenolic compounds that can be used in food, animal and aqua feeds, or microencapsulation applications. For example, phlorotannins are a structurally unique polymeric phenolic group exclusively found in brown seaweed that act through multiple antioxidant mechanisms. Seaweed phenolics show high affinities for binding proteins via covalent and non-covalent bonds and can have specific bioactivities due to their structures and associated physicochemical properties. Their ability to act as protein cross-linkers means they can be used to enhance the rheological and mechanical properties of food-grade delivery systems, such as micro-encapsulation, which is a new area of investigation illustrating the versatility of seaweed phenolics. Here we review how seaweed phenolics can be used in a range of applications, with reference to their bioactivity and structural properties.
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Science & TechnologyLife Sciences & BiomedicineChemistry, MedicinalPharmacology & Pharmacyaquafeedphenolicsseaweedveterinary drugantioxidantcross-linkerextraction and characterisationSUPERCRITICAL-FLUID EXTRACTIONLOW-MOLECULAR-WEIGHTBROWN SEAWEEDLIQUID-CHROMATOGRAPHYSOLVENT-EXTRACTIONVIBRIO-PARAHAEMOLYTICUSANTIBACTERIAL ACTIVITYHIMANTHALIA ELONGATAGROWTH-PERFORMANCEOXIDATIVE STRESS
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