海藻酸钠涂膜对灵武长枣低温保鲜效果的影响  

Effects of Coating with Sodium Alginate on the Fresh-keeping Effects of Lingwu Long Jujube at Low Temperature

作　　者：任玉锋[1] 马玉贤[1] 

机构地区：[1]北方民族大学生物科学与工程学院,宁夏银川750021

出　　处：《安徽农业科学》2009年第15期7175-7176,7213,共3页Journal of Anhui Agricultural Sciences

基　　金：项目基金西北第二民族学院科研资助项目(2006Y039);国家民委发酵酿造工程生物技术重点实验室资助项目(2007SY008)

摘　　要：[目的]研究海藻酸钠涂膜对低温条件下灵武长枣保鲜效果的影响。[方法]在贮藏期间每天观察灵武长枣果实外观变化,每隔6d测定其硬度、可溶性固形物含量、Vc含量、可滴定酸含量、叶绿素含量、失重率等理化指标。[结果]结果表明,浓度1.0%的海藻酸钠涂膜能够减缓果实叶绿素的降解,减少果实水分的散失,保持较高的果实硬度和Vc含量,同时减少了可溶性固形物和可滴定酸的消耗,从而延缓了灵武长枣的后熟进程。[结论]海藻酸钠涂膜处理能够提高灵武长枣的外观品质,起到保鲜效果。[Objective] The fresh-keeping effects of coating with sodium alginate on Lingwu long jujube were studied at low temperature. [Method] The outward appearance change was observed every day during the storage period. The finmess, the soluble solid content, the Vc content, the titratable acidity content, chlorophyll content, rate of weight loss and some other irrtpertant physical and chemical indices were detemfined every six days. [ Result ] The resuit indicated that 1.0%sodium alghaate coating can slowdown the chlorophyll degradation of the fruits,reduce moisture loss,and keep the finrnaess and Vc content level high. It call also reduce the depletion of soluble solid and titratable acid, thus delayed its additional ripening process. [Conclusion] Coating with sxxtium alginate could enhance the apparent quality of Lingwu long jujube to have the fresh-keeping effects.

关 键 词：灵武长枣 海藻酸钠 涂膜 贮藏 品质 

分 类 号：S661.109.3[农业科学—果树学] TS255.3[农业科学—园艺学]