Macroalgal-Derived Bioactive Compounds as Anti-Inflammatory and Antioxidant Ingredients for Food and Nutraceutical Industry: Mechanisms, Functional Applications, and Challenges

Imagine the ocean's seaweed as a hidden pharmacy, packed with compounds that fight inflammation and oxidative stress. This review dives into how these marine treasures could revolutionize our food and supplements.

The ocean is more than a source of food—it's a chemical goldmine. Macroalgae, or seaweeds, are abundant and sustainable, producing a dazzling array of bioactive compounds like polyphenols, pigments, and polysaccharides. But their composition isn't constant; it shifts with environmental and seasonal changes, making each harvest a unique natural recipe.

Scientists are zeroing in on how these compounds work at the molecular level. They act as antioxidants by scavenging free radicals, chelating metals, and boosting our own defense systems. Meanwhile, their anti-inflammatory power comes from regulating key signaling pathways, offering a targeted approach to chronic disease prevention.

To bring these benefits to your plate, researchers are refining green extraction techniques and encapsulation methods to protect the fragile bioactives, improving their stability and bioavailability. Yet, challenges loom: biomass variability, scaling up production, standardization, and regulatory hurdles all stand in the way.

Still, the potential is immense. Macroalgal bioactives represent a promising class of sustainable, health-promoting ingredients. With continued advances in cultivation, processing, and regulation, seaweed could soon be a staple in functional foods and nutraceuticals worldwide.

Key Points

• Macroalgae yield polyphenols, pigments, polysaccharides with anti-inflammatory and antioxidant effects.
• Mechanisms: radical scavenging, metal chelation, boosting antioxidant defenses, regulating inflammation pathways.
• Green extraction and encapsulation improve stability, but variability, scale-up, and regulation remain challenges.