화학공학소재연구정보센터
Applied Chemistry, Vol.6, No.1, 27-30, May, 2002
식용 가능한 펙틴/전분 블렌드 필름의 기계적 물성 및 가스 투과도
Mechanical Properties and Gas Permeabilities of Pectin/Starch Edible Films
Mechanical properties and gas permeabilities of edible films based on the blends of pectin with starch plasticized with glycerol were investigated. Tensile properties of pectin/starch blend films were changed siginficantly by the amount of glycerol and the ratio of pectin/starch. Tensile strength and modulus decreased as the content of glycerol increasing. With increasing glycerol content, elongation at break increased. Water absorption of pectin/starch blend films was changed by amount of glycerol but it was relatively little changed by the ratio of pectin/starch. Oxygen permeability of pectin/starch blend films was generally lower than of plastic films.