硅窗气调包装对黄秋葵采后贮藏品质的影响  

Effect of Silicon Window Packaging on Storage Quality of Okra

作　　者：祝贺 吴健 邢艳霞 常桂芳 吴小霞 刘盛钢 蓝彩红 岳凤丽 ZHU He;WU Jian;XING Yan-xia;CHANG Gui-fang;WU Xiao-xia;LIU Sheng-gang;LAN Cai-hong;YUE Feng-li(Department of Food Science and Engineering Central South University of Forestry and Technology,Changsha 410000,China;Department of Food Science and Engineering Shandong Agricultural and Engineering University,Jinan 250100,China)

机构地区：[1]中南林业科技大学食品科学与工程学院,湖南长沙410000 [2]山东农业工程学院食品科学与工程学院,山东济南250100

出　　处：《现代食品科技》2019年第2期102-108,共7页Modern Food Science and Technology

基　　金：山东省现代农业产业技术体系蔬菜创新团队贮藏加工岗位(SDAIT-05-14)

摘　　要：为探讨不同规格硅窗包装袋处理对黄秋葵的保鲜效果,以不同硅窗面积热合PVC包装袋(空白组、6 cm^2、8 cm^2、10 cm^2)处理采后黄秋葵,并对黄秋葵的感官品质(腐烂、锈斑、硬度、色泽)及理化指标(电导率、Vc、L*)进行统计及分析。结果表明:黄秋葵在4℃贮藏期间,10 d时达到最大呼吸强度。硅窗气调包装可以有效改善黄秋葵采后贮藏期间的感官品质,处理15 d (80.52%、84.22%、86.34%)与20 d(75.92%、79.36%、78.26%)时,6 cm^2与8 cm^2、10 cm^2处理组有显著性差异(p<0.05),这一结果与CO2浓度、O2浓度、电导率、L*显著性相关(p<0.05),即通过气体浓度有效抑制了组织电导率,提高了L*,从而显著提高了黄秋葵贮藏感官品质。从贮藏效果来看,4℃贮藏时,PVC袋(30 cm×40 cm,46μm)热合8 cm^2(0.7 mm厚)即能够最大程度的减少黄秋葵采后腐败率,从而达到延长黄秋葵货架期的目的。In order to investigate the effect of different sizes of silicon window packaging bags on preservation of okra,post-harvest okra was treated with PVC bags with different sizes of silicon windows(blank group,6 cm^2,8 cm^2,10 cm^2).The sensory quality(decay,rust spot,hardness,color)and physical and chemical indexes(electrical conductivity,Vc,L^*)of okra were analyzed.Results showed that the maximum respiratory intensity of okra was found at 10 d at 4℃.Modified atmosphere packaging with silicon window can effectively improve the sensory quality of okra during postharvest storage.When treated for 15 days(80.52%,84.22%,86.34%)and 20 days(75.92%,79.36%,78.26%),there were significant differences between 6 cm^2 and 8 cm^2,10 cm^2 treatments(p<0.05).These results were significantly correlated with CO2 concentration,O2 concentration,conductivity and L^*(p<0.05).The electrical conductivity of tissues was effectively inhibited and L^*was increased by gas concentration,which could significantly improve the sensory quality of Okra during storage.From the storage effect,when stored at 4℃,PVC bags(30 cm×40 cm,46μm)were heated to 8 cm^2(0.7 mm thick)to minimize the spoilage rate of okra after harvest,thus prolonging the shelf life of okra.

关 键 词：黄秋葵 硅窗面积 贮存保鲜 

分 类 号：TS255.3[轻工技术与工程—农产品加工及贮藏工程]