摘要
分别使用商用的PET膜、自制的透湿性薄膜(A膜)对韭菜进行包装,并加入裸放组作为对比,探讨包装内顶空气氛(氧气和二氧化碳体积分数)和相对湿度(RH)对韭菜常温(26±1)℃下颜色、营养成分与货架期的影响。结果表明,与裸放组、PET组相比,A组建立12%~16%CO_(2)和7%~12%O_(2)的顶空气氛及(86±2)%的湿度环境,较高CO_(2)和低氧气氛及较高湿度(86±2)%利于维持韭菜可溶性固形物和维C含量,降低失水,保持色泽,将韭菜的货架期从2 d延长到4 d。
The leeks were packaged using commercial PET film and homemade moisture permeable film(A film)respe-ctively,and the naked group was added as a comparison to explore the effects of headspace atmosphere(oxygen and carbon dioxide concentration)and relative humidity(RH)inside the package on the colour,nutrient content and shelf-life of the leeks at ambient temperature(26±1)℃.The results showed that,compared with the naked and PET groups,group A established 12%~16%CO_(2) concentration and 7%~12%O_(2) concentration headspace atmosphere and(86±2)%humidity environment,the higher CO_(2) and low oxygen atmosphere and higher humidity(86±2)%were conducive to maintain the soluble solids and vitamin C content of leeks,reduce the water loss,maintain the color and prolong the shelf-life of leeks from 2 d to 4 d.
作者
陈浩芬
石志敏
满杰
郑丽静
廖大智
李东立
CHEN Haofen;SHI Zhimin;MAN Jie;ZHENG Lijing;LIAO Dazhi;LI Dongli(Beijing Institute of Graphic Communication,Beijing 102600,China;Ubao(Beijing)Technology Co.,Beijing 102600,China;Beijing Agricultural Technology Extension Station,Beijing 100020,China)
出处
《农产品加工》
2024年第6期14-19,共6页
Farm Products Processing
基金
河北省重点研发计划项目(22321201D)。
关键词
韭菜
被动气调包装
货架期
失水
维生素
leek
passive air-conditioned packaging
shelf-life
water loss
vitamins
