Seaweed Phenolics as Natural Antioxidants, Aquafeed Additives, Veterinary Treatments and Cross-Linkers for Microencapsulation

Driven 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 micr...

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Bibliographic Details
Published in:Marine drugs 2022-07, Vol.20 (7), p.445
Main Authors: Gunathilake, Tharuka, Akanbi, Taiwo O., Suleria, Hafiz A. R., Nalder, Tim D., Francis, David S., Barrow, Colin J.
Format: Article
Language:English
Subjects:
Additives
Algae
antioxidant
Antioxidants
Aquaculture
Aquaculture feeds
aquafeed
Aquatic life
Biological activity
Covalent bonds
cross-linker
Crosslinking
Descriptive labeling
Disease
Fatty acids
Feeds
Fish
Fisheries
Food
Food security
Foods
Lipids
Mechanical properties
Microencapsulation
Nutrients
Oxidation
Phenolic compounds
phenolics
Phenols
Physicochemical processes
Physicochemical properties
Policies
Proteins
Public policy
Review
Rheological properties
seaweed
Seaweeds
Sustainability
veterinary drug
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Summary:Driven 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 microencapsulation, 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.
ISSN:1660-3397
1660-3397
DOI:10.3390/md20070445