北京地区甜玉米采后品质的影响因素调查与分析

以北京地区9家甜玉米生产销售企业为调查对象,分析影响甜玉米采后品质的相关因素,探究延长甜玉米货架期的采后保鲜措施。结果表明:北京地区影响甜玉米采后品质的因素主要有品种、采收温度、预冷温度及方法、产品分级、包装材料、运输方式、贮藏温度等;根据销售要求选择适宜的品种,气温较低时进行采收,采用碎冰预冷的方式快速降温,长期坚持采取分级措施,选用适宜的包装材料、运输方式、贮藏温度等可以延长甜玉米的货架期。

Investigation and Analysis of Infl uencing Factors on Post-harvest Quality of Sweet Corn in Beijing

Taking 9 sweet corn production and sale enterprises in Beijing as respondents，this paper analyzed the factors aff ecting the quality of sweet corn after harvest，and explored the methods for extending sweet corn shelf life harvest．The results showed that the main factors aff ecting the post-harvest quality of sweet corn in Beijing areas were variety，harvest temperature，pre-cooling methods and temperature，post-harvest grading system，package material，transportation mode and storage temperature．Selecting appropriate varieties according to market requirements，carrying out harvest when temperature being low，adopting crushed ice precooling method to quickly reduce temperature，insisting on long-term grading measures，choosing suitable package material，transportation mode and storage temperature can prolonged the shelf life of sweet corn．