Seaweed applications reviewed
A comprehensive paper has reviewed the use of seaweeds, and their bioactive compounds, for the benefit of a sustainable bioeconomy. The paper noted that seaweeds are an underutilised biomass that may assist in addressing a range of global challenges, including climate change, energy generation, food consumption and both animal and human health issues.
Researchers noted that seaweeds contain several bioactive compounds, including fucoidan, that offer significant therapeutic potential. Bioactivities of these compounds include antifungal, antimicrobial, antiviral, anti-inflammatory, anti-cancer and antioxidant properties. The paper explained that the efficacy of these metabolites is dependent upon both extraction efficiencies and seaweed cultivation practices. It also discussed the importance of appropriate clinical evaluations and safety data prior to their use in pharmaceutical and cosmetic applications. The paper suggested that advances in technology are likely to fuel the future use of seaweed compounds in new pharmaceutical products.
The review paper also explored the rising use of bioactive seaweed compounds in cosmetics. It noted the global movement away from synthetic ingredients and the increasing demand for naturally occurring compounds. Bioactive seaweed metabolites that form part of the natural defence mechanism of the plant have been shown to be effective cosmetic ingredients. Studies have reported benefits including antioxidant activity, skin brightening, moisturising, wrinkle reduction and anti-inflammation.
The full paper, ‘Seaweed for climate mitigation, wastewater treatment, bioenergy, bioplastic, biochar, food, pharmaceuticals, and cosmetics: a review’ was published in Environmental Chemistry Letters.