摘要
选取果胶、魔芋胶两种天然高分子,采用溶液共混制备了不同质量比的果胶/魔芋胶复合膜,用IR、DSC表征其结构,并测试了复合膜的力学性能、透光率、吸湿性能、溶胀性能、体外降解和抗菌性等性能.结果表明,果胶、魔芋胶分子间有很好的相容性;当魔芋胶的含量为二者总质量的30%时,果胶/魔芋胶复合膜的力学性能最优,溶胀性和体外降解性较好,而透光性和吸湿性较低,抗菌性能进一步增强.该复合膜可以替代明胶作为药用胶囊膜和可食性包装膜材料.
Two natural polysaccharides,pectin and konjacglucomannan were chosen. Solution blending method was applied to prepare pectin- chitosan- glucomannan（ PEC / KGM） composite membrane with different quantity proportions; IR and DSC were adopted to assay the structure of membrane,and the mechanical property,light transmittance,hygroscopicity,swelling ratio,in vitro degradation and antimicrobial properties of membrane were measured. The results indicated that pectin and konjacglucomannan had a good compatibility,and physical- chemical interaction would occur between them during the blending process.The obtained membrane had the best mechanical properties when the content of konjacglucomannan was 30% of total quantity of pectin and konjacglucomannan,the composite membrane Showed a lower hygroscopicity and transmittance,but lower properties in swelling and in vitro degradation,and its antimicrobial tproperty was increased. This material has the potential to replace gelatin as capsule membrane and edible packaging membrane.
出处
《西南民族大学学报（自然科学版）》
CAS
2015年第1期60-65,共6页
Journal of Southwest Minzu University(Natural Science Edition)
基金
四川省科技创新苗子工程资助项目"用果胶替代明胶制备药用胶囊膜材料"(项目编号:2012CZ008)
西南民族大学研究生创新科研重点项目"用果胶替代明胶制备药用胶囊膜材料"(项目编号:CX2013SZ14)
关键词
果胶
魔芋胶
复合膜
应用性能
pectin
konjacglucomannan
composite membrane
application property
