1. Glyn O. Phillips Hydrocolloid Research Center, Glyndwr University, Plas Coch, Mold Road, Wrexham LL11 2AW, United Kingdom, Phillips Hydrocolloid Research Ltd., 45 Old Bond Street, London W1S 4AQ, United Kingdom, and Centre for Water-Soluble Polymers, Glyndwr University, Plas Coch, Mold Road, Wrexham LL11 2AW, United Kingdom