Sciphtig and Austin (2008) used high performance SEC for the measurement of LMW carrageenans in food ingredients and finished products and demonstrated that they had a little increase during food processing in the LMW fraction when pH levels below 4.0 were avoided. Strong mineral acids are known to hydrolyze carrageenans and the treatment of κ-carrageenan with simulated gastric fluid (pH 1.0) showed significant breakdown, as measured by SEC (Ekström, 1985). Under closely controlled pH and temperature cond