Application of deaerated water in swelling of cellulose and amylose and cotton desizing with enzyme

Abstract

ABSTRACT:The effect of deaerated water on the swelling of cellulose and amylose and on the application in cotton desizing with enzyme that contains necessarily these swelling processes were studied. The total volume changes of the swelling of cellulose and amylose were measured by dilatometry. The total volume changes of cellulose and amylose were more negative in deaerated water. In deaerated water, the total volume changes are 142 Ϯ 6% for cellulose and 229 Ϯ 2% for amylose to those in air-present water. The rates of cotton desizing with two kinds of enzymes were studied by measuring the concentration of generated sugars by using HPLC. Higher efficiency of 140 -150% was obtained in deaerated water than in water containing dissolved gases of air, oxygen, or nitrogen.