Mucoadhesive properties of tamarind-seed polysaccharide/hyaluronic acid mixtures: A nuclear magnetic resonance spectroscopy investigation

► A non-covalent aggregate hyaluronic acid/tamarind-seed polysaccharide is formed. ► A minimum polysaccharide concentration was needed to obtain stable aggregates. ► The polysaccharides mixture has high affinity for mucin. ► NMR measurements proved stability and affinity for mucin of polysaccharides mixture.