6种涂膜处理对金秋梨的保鲜效果  

Research on the Fresh-keeping Effect of 6 Coating Agents on Jinqiu Pear

作　　者：李宗磊[1] 赵琪[1] 王明力[2] 

机构地区：[1]徐州工业职业技术学院化学工程技术学院,江苏徐州221140 [2]贵州省发酵工程与生物制药重点实验室,贵州贵阳55003

出　　处：《湖北农业科学》2011年第24期5230-5233,共4页Hubei Agricultural Sciences

基　　金：国家自然科学基金(31060229);贵州大学引进人才科研项目[贵大人基合字(2008)012];徐州工业职业技术学院院级课题项目(XGY200804)

摘　　要：制备了6种涂膜液对金秋梨在室温和冷藏(0～4℃)条件下进行涂膜保鲜试验,并对室温贮藏30、60d和0～4℃贮藏90 d后金秋梨的失重率、硬度、可溶性固形物(SSC)含量、总酸含量、细胞膜透性、总糖含量、腐烂率和维生素C(VC)含量等常见贮藏指标进行了测定。结果表明,不同涂膜处理的金秋梨在室温和冷藏条件下的失重率和腐烂率基本上都显著小于相应的对照组(CK)。其中,添加3 g/L纳米SiOx的壳聚糖涂膜液(CTS2)所处理的金秋梨,在室温贮藏条件下,果实的失重率和腐烂率都小于其他组,硬度大于其他组,保鲜效果较好,室温下可以延长金秋梨的贮藏期1个月。Six kinds of coating agents were prepared for the storage of Jinqiu pear under room temperature or refrigeration（0～4 ℃）.The indices including weight loss rate,hardness,soluble solid content,total acid,cell membrane permeability,total sugar,decay rate and vitamin C of Jinqiu pear stored for 30 and 60 d under room temperature as well as those chilled（0～4 ℃） for 90 d were measured.It was found that weight loss rate and decay rate of Jinqiu pear with different coating treatment under two storage temperature was remarkably lower than the corresponding comparison（CK）.The CTS2 treatment（chitosan with 3 g/L nano-SiOx particles coating） had the best preservation effect under room temperature as the weight loss rate and decay rate of pear was the lowest while the hardness was the highest among all groups.The storage life of Jinqiu pear under room temperature could be prolonged for one month by CTS2 treatment.

关 键 词：涂膜 金秋梨 保鲜效果 

分 类 号：S661.2[农业科学—果树学] TS972.24[农业科学—园艺学]