鲜食蓝莓采后品质保障关键技术研究  

Optimization of the key technology of quality assurance of fresh blueberry after harvest

作　　者：梁宗余[1] 杨琳 张莹 张小蓉 王嘉祥 李晓凤 罗鸣[1] 李明元 LIANG Zongyu;YANG Lin;ZHANG Ying;ZHANG Xiaorong;WANG Jiaxiang;LI Xiaofeng;LUO Ming;LI Mingyuan(College of Wuliangye Technology and Food Engineering,Yi Bin Vocational and Technical College,Yibin 644000;School of Food and Biological Engineering,Xihua University,Chengdu 610039;Chengdu Customs Technology Center,Yibin 644000)

机构地区：[1]宜宾职业技术学院,五粮液技术与食品工程学院,宜宾644003 [2]西华大学,食品与生物工程学院,成都610039 [3]成都海关技术中心,宜宾644000

出　　处：《中国食品添加剂》2023年第7期36-42,共7页China Food Additives

基　　金：四川省科技厅科技计划项目(18ZDYF0655);四川省科技厅科技计划项目(2020YFN0067)。

摘　　要：为了探究蓝莓采后贮藏最佳的包装条件以及气体比例条件。研究不同包装材料(聚乙烯膜、聚丙烯膜、聚氯乙烯膜)和不同气体比例(5%O_(2)+15%CO_(2)+80%N_(2)、5%O_(2)+20%CO_(2)+75%N_(2)、5%O_(2)+25%CO_(2)+70%N_(2))下“灿烂”蓝莓贮藏期品质(感官、腐烂率、菌落总数、失重率、可溶性固形物含量)变化。研究结果发现,随着贮藏时间延长,“灿烂”蓝莓的感官评分和可溶性固形物含量整体呈下降趋势,而腐烂率、菌落总数和失重率呈上升趋势。贮藏40 d时,聚乙烯膜包装的腐烂率、菌落总数和失重率最低,分别为69.26%、1.35×104CFU/g、20.13%;此外气调包装对蓝莓的保鲜效果更为显著,在5%O_(2)+20%CO_(2)+75%N_(2)条件下,贮藏结束时菌落总数仅为3000 CFU/g,且感官评分仍在可食用标准内。以上结果表明,在4(±0.5)℃下,聚乙烯膜包装、气体比例为5%O_(2)+20%CO_(2)+75%N_(2)的条件,更适宜“灿烂”蓝莓贮藏。In order to explore the best packaging conditions and gas ratio for postharvest storage of blueberries,different packaging materials(Polyethylene plastic wrap,Polypropylene plastic wrap,Polyvinyl chloride plastic wrap)and different gas ratios(5%O_(2)+15%CO_(2)+80%N_(2),5%O_(2)+20%CO_(2)+75%N_(2),5%O_(2)+25%CO_(2)+70%N_(2))changes in quality(sensory,decay rate,total number of colonies,weight loss rate,total soluble solid)of‘Britewell’blueberries during storage were studied.The results found that with the prolonged storage time,the sensory score and total soluble solid value of‘Britewell’blueberries were going down,while the decay rate,total number of colonies and weight loss rate were going up.After stored for 40 days,the polyethylene film packaging had the lowest decay rate,total bacterial count,and weight loss rate,which were 69.26%,1.35×104 CFU/g,and 20.13%,respectively.In addition,the modified atmosphere packaging had more significant preservation effect on blueberries.Under the conditions of 5%O_(2)+20%CO_(2)+75%N_(2),the total number of colonies at the end of storage was only 3000 CFU/g,and sensory score was still within the edible standard.The above results indicate that under the conditions of polyethylene film packaging and a gas ratio of 5%O_(2)+20%CO_(2)+75%N_(2)at 4(±0.5)℃,it is more suiTable for storing“Splendor”blueberry.

关 键 词：蓝莓 保鲜 保鲜膜 气调包装 

分 类 号：TS255.2[轻工技术与工程—农产品加工及贮藏工程] TS255.3[轻工技术与工程—食品科学与工程]