Comparison of polysaccharides of Haliotis discus hannai and Volutharpa ampullacea perryi by PMP-HPLC-MSn analysis upon acid hydrolysis

- Polysaccharides in abalone and its cheaper replacer were compared by acid hydrolysis.
- Disaccharides in hydrolysates correspond to the original acidic polysaccharides.
- Mono- and di-saccharides were characterized by PMP-HPLC-MSn.
- Polysaccharide compositions in pleopods of the two gastropods are similar.
- Polysaccharide compositions in viscera and gonads of the two gastropods differ.