不同贮藏条件对红提葡萄保鲜效果及部分品质的影响  

Effects of different storage environment on preservation and quality of red grape

作　　者：朱恩俊[1] 吕明珠[1] 曹德明 李广玉 

机构地区：[1]南京财经大学食品科学与工程学院/江苏省现代粮食流通与安全协同创新中心,南京210023 [2]扬中市绿野秧草专业合作社,扬中212200 [3]南京福朝农业发展有限公司,南京211501

出　　处：《食品安全质量检测学报》2015年第6期2317-2322,共6页Journal of Food Safety and Quality

基　　金：江苏高校优势学科建设工程项目(YXK1403)~~

摘　　要：目的研究温度和湿度对红提葡萄贮藏品质的关系,确定最适宜的贮藏条件,以保证红提葡萄的采后品质。方法考察3种(20、10以及2℃)温度和3种湿度(50%、70%、90%)贮藏环境中红提的保鲜效果,其中20℃温度下贮藏10 d,10℃2℃温度下贮藏35 d,同时对2℃下3种湿度环境条件下的红提葡萄的风味品质(葡萄糖、果糖、可滴定酸含量)、质构品质(水分含量、硬度)和货架品质(烂果率、失重率)进行测定及对比。结果3种温度及湿度条件下,2℃贮藏环境中的腐烂率普遍较低,保鲜效果最好。通过比较贮藏期间品质的指标变化发现,2℃下湿度为90%时,红提葡萄贮藏28 d后的葡萄糖含量为8.92%,果糖含量为9.01%,可滴定酸含量为1.07%,水分含量为82%,硬度为1007 g,失重率为0.38%,烂果率为6.67%,各含量普遍高于50%和70%湿度环境中的红提葡萄,品质保存最好。结论2℃温度及90%湿度的低温高湿环境最适宜采后浆果的贮藏,在相同贮藏期内红提葡萄的腐烂率最低,同时其风味品质、质构品质和货架品质能得到较好的保持,保鲜效果显著。Objective To study the effect of different temperature and humidity at 20 ℃, 10 ℃ and 2℃with 50%, 70% and 90% humidity storage environment on the preservation of red grapes, respectively, in order to determine the most appropriate storage conditions. Methods Red grapes stored for 10 d at 20℃while stored at 10 ℃ and 2 ℃ for 28 d. Meanwhile, flavor value (such as glucose level, fructose level and titratable acid content), fruit texture (such as moisture content and firmness) and shelf-life quality (such as rotting-pod rate and weightlessness rate) of red grapes were analyzed which stored in different humidity at 2℃. Results The low temperature was better for the storage, and the rotting-pod rate of table grapes was the lowest at 2℃among all stored samples. And the best-preserved condition was 90%humidity with 2℃, and the content of glucose level, fructose level, titratable acid, moisture content, firmness, rotting-pod rate and weightlessness rate were 8.92%, 9.01%, 1.07%, 82%, 1007 g, 0.38% and 6.67%, respectively. Conclusion Low temperature and high humidity are suitable to store postharvest red grapes, which can keep lower rotting-pod rate and better quality. And it can also extend the shelf-life and maintain the nutritive value in a way.

关 键 词：红提葡萄 贮藏 烂果率 品质保持 

分 类 号：S663.1[农业科学—果树学]