Study Of Carrageenan Riched Extraction From Seaweed As A Potential Ingredient In Cosmetics

Abstract

This study delves into the evolving role of kappa-carrageenan, a polysaccharide from red seaweed (Kappaphycus alvarezii), in the burgeoning global cosmetics industry, which is increasingly focused on plant-based ingredients. The research aimed to scrutinize the impact of extraction temperature on carrageenan's physicochemical and biological properties, offering insights into its potential and limitations as a thickening, stabilizing, and water-binding agent in cosmetics. High-temperature extraction resulted in increased carrageenan yield but also reduced viscosity, moisture, and ash content. Notably, heavy metals, except mercury, were detected in the extracted carrageenan, with arsenic and lead concentrations exceeding acceptable levels. Infrared spectroscopy revealed temperature-induced chemical modifications, specifically in the absorbance peak related to D-galactose-4-sulfate, a critical component in carrageenan. Biological activity analyses were conducted using 2,2-diphenyl-2-picryl-hydrazyl (DPPH) for antioxidant properties and bacterial growth assays for antibacterial effectiveness. Carrageenan extracted at 60°C exhibited the highest antioxidant activity, with its IC50 value outperforming others. Additionally, it showed effective growth inhibition against Staphylococcus aureus and Bacillus cereus. The study affirms carrageenan's multifunctional capabilities, while highlighting the need for a nuanced approach to its extraction process. This research serves as a critical foundation for future work aimed at optimizing marine-derived ingredients in cosmetic formulations, catering to consumer demand for natural, yet effective, products.