CO_(2)气调处理对鲜莲贮藏品质的影响  

Effects of CO_(2) Controlled Atmosphere Treatments on the Storage Quality of Fresh Lotus

作　　者：舒小芳 郜海燕 韩延超 房祥军[1] 陈杭君[1] Shu Xiaofang;Gao Haiyan;Han Yanchao;Fang Xiangjun;Chen Hangjun(Institute of Food Science,Zhejiang Academy of Agricultural Sciences,Key Laboratory of Post-harvest Handling of Fruits,Ministry of Agriculture and Rural Affairs,Key Laboratory of Fruits and Vegetables Postharvest and Processing Technology Research of Zhejiang Province,Key Laboratory of Postharvest Preservation and Processing of Fruits and Vegetables,China National Light Industry,Hangzhou 310021)

机构地区：[1]浙江省农业科学院食品科学研究所、农业农村部果品产后处理重点实验室、浙江省果蔬保鲜与加工技术研究重点实验室、中国轻工业果蔬保鲜与加工重点实验室,杭州310021

出　　处：《中国食品学报》2023年第2期243-253,共11页Journal of Chinese Institute Of Food Science and Technology

基　　金：财政部和农业农村部:国家现代农业产业技术体系资助(CARS-24-E-01);国家自然科学基金项目(32172283);浙江省万人计划人才培养项目(2018R52020)。

摘　　要：为研究CO_(2)气调处理对鲜莲采后贮藏品质的影响,以“十里荷一号”鲜莲为试材,在4℃、5%O_(2)条件下,分别采用不同CO_(2)(4%,8%和12%)贮藏鲜莲20 d,测定其外观及营养品质。结果表明:4%CO_(2)处理虽可降低莲子的失重率和褐变度,但淀粉消耗较为严重,贮藏20 d后淀粉含量(98.01 mg/g)比对照组(104.99 mg/g)低6.98 mg/g;8%CO_(2)处理在贮藏结束时褐变度、失重率、还原糖含量分别为1.63,8.54%,0.76%,过氧化物酶(POD)和多酚氧化酶(PPO)活性分别为163.44 U/(min·g)和99.63 U/(min·g),均显著低于对照组和其它气调处理组(P<0.05),而淀粉含量为119.68 mg/g,显著高于其它处理组(P<0.05)。12%CO_(2)处理使莲子受到高浓度CO_(2)伤害,贮藏20 d后其a*值(-10.03)高于对照组(-12.68),而b*值(24.95)低于对照组(28.03),褐变程度也比对照组更明显。本研究结果表明,5%O_(2)+8%CO_(2)为较适宜新鲜莲子贮藏保鲜的气调参数。该处理在减少莲子营养物质消耗和表皮护绿等方面也表现出积极作用,研究结果为研发鲜莲采后保鲜技术提供了参考。In order to study the effect of different CO_(2) air conditioning treatments on the quality of fresh lotus seeds postharvest storage,this study used'Shilihe No.1'fresh lotus seeds as the test material,and under the conditions of 4℃and 5%O2,different CO_(2) were used(4%,8% and 12%).The fresh lotus was stored for 20 days under controlled atmosphere,and its appearance and nutritional quality during storage were measured.The results showed that 4%CO_(2) treatment could reduce the weight loss rate and browning degree of lotus seeds,but the nutrient consumption was more serious.After 20 days of storage,the starch content(98.01 mg/g)was 6.98 mg/g lower than the control group(104.99 mg/g);at the end of storage,browning degree,weight loss rate,reducing sugar of 8% CO_(2) treatment were 1.63,8.54%,0.76%,respectively,POD and PPO activities were 163.44 U/(min·g),99.63 U/(min·g),which were significantly lower than the control group and other modified atmosphere treatment groups(P<0.05),while the starch content was 119.68 mg/g,which was significantly higher than that of the control and other atmospheres.12% CO_(2) treatment may cause the lotus seeds to be damaged by too high concentration of CO_(2).After 20 days of storage,the a*value(-10.03)was higher than the control group(-12.68),and the b*value(24.95)was lower than the control group(28.03),and the browning phenomenon was more obvious than that of the control group.This researches showed that 5%O_(2)+8%CO_(2) was the most suitable treatment for fresh lotus seeds storage.This treatment also showed a positive effect in reducing the nutrient consumption of lotus seeds and protecting the green of the epidermis,providing new ideas and references for the research and development of fresh lotus postharvest preservation technology.

关 键 词：鲜莲 CO_(2) 气调处理 贮藏品质 

分 类 号：TS254.58[轻工技术与工程—水产品加工及贮藏工程]