CAJ | 학술논문

采用纳米SiOx对壳聚糖进行改性得到复合涂膜,考察水蒸汽透过率、氧气透过率及抑菌性等指标.用改性后的壳聚糖对果蔬涂膜保鲜,并测试室温下的VC含量、保鲜时间和好果率.结果表明:壳聚糖纳米SiOx复合膜(CTS-SiOx)与壳聚糖单膜(CTS)相比,其水蒸气透过率下降35%、氧气透过率下降21%,复合涂膜抗菌效果明显,室温下果蔬保鲜时间得到明显延长,其中金秋梨由20d延长至60d,好果率为80%.
채용납미SiOx대각취당진행개성득도복합도막,고찰수증기투과솔、양기투과솔급억균성등지표.용개성후적각취당대과소도막보선,병측시실온하적VC함량、보선시간화호과솔.결과표명:각취당납미SiOx복합막(CTS-SiOx)여각취당단막(CTS)상비,기수증기투과솔하강35%、양기투과솔하강21%,복합도막항균효과명현,실온하과소보선시간득도명현연장,기중금추리유20d연장지60d,호과솔위80%.
As the chitosan was modified with nano-SiOx,nano-SiOx/chitosan composite film was obtained.Water/oxygen permeability and antibacterial activity Were in vestigated.Fresh-keeping ability of the chitosan films was evaluated by measuring contant of ascorbic acid,good fruits rate and storage life of Jinqiu pear at room temperature:The results showed:thewatt" permeability and oxygen permeability decreased by 35% and 21% respectively,and the composite film has obvious antibacterial activity,and the shelf life ofJinqiu pear was prolonged from 20 to 60 days,and the good fruits rate percent was 80% after 60 days.