Abstract
The effects of gel concentration before drying, thickness of the dried gel sheet and the additives on the water absorption and swelling profile of the dried gel sheet prepared with carrageenan were investigated. The following results were obtained.
The higher gel cocentaration before drying demonstrated the faster water absorption and swelling rate in the carrageenan sheet. The water absorption and swelling rate became 1.3-1.5 times faster with the addition of potassium citrate, sodium citrate and gulcose. However, the thickness of the sheet and the amount of additives scarcely affected the water absorption and swelling profiles.
