摘要
以壳聚糖、ClO2和CaCl2三种物质的复合涂膜剂对超藤葡萄进行涂膜,研究其对葡萄贮藏品质和生理代谢的影响。结果表明:壳聚糖、ClO2和CaCl2复配涂膜处理葡萄后,不同程度地提高了果实的硬度和好果率,降低葡萄褐变指数;以优选配方5(1.5g/100mL壳聚糖+0.5g/100mL CaCl2混合液浸泡2min后装袋,再以0.3g/kg葡萄的ClO2薰蒸)处理可以减少贮藏期间葡萄中可溶性糖、VC和可滴定酸的损失,有效抑制POD、PPO活性和MDA的积累,提高SOD活性。优选配方5可以作为葡萄保鲜剂进一步检验推广。
To achieve better fresh-keeping of the fruits of Vitis vinifera L.cv.Chaoteng（Chaoteng grape）,chitosan coating combined with chlorine dioxide fumigation was used to treat them.Results showed that the treatment increased the firmness and good-fruit rate and lowered the browning index of Chaoteng grapes to a certain extent.Treatment with a coating containing 1.5%（g/100 mL,final concentration） chitosan and 0.5 g/100mL calcium chloride followed by chlorine dioxide fumigation at 0.3 g/kg fruit weight dosage reduced the loss of soluble sugars,vitamin C and titritable acids,effectively suppress the activities of POD and PPO and the accumulation of MDA and increased the activity of SOD in Chaoteng grapes.
出处
《食品科学》
EI
CAS
CSCD
北大核心
2010年第8期269-274,共6页
Food Science
基金
贵州省农业攻关项目(NY20083021)
贵州省研究生创新基金项目(2007002)
关键词
葡萄
复合涂膜剂
贮藏品质
生理代谢
grape
chitosan coating
storage quality
physiological metabolism
