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MAP（自然气调包装）技术适用于各类食品包装。因为可以提高果蔬产品的货架寿命，所以特别适合果蔬保鲜包装，与CAP（控制气调包装）比较，MAP投资较少、操作简便，且成本较低，因而得到愈来愈广泛的应用。本文介绍了MAP的设计程序，指明装有产品的保鲜薄膜经过封严后形成一个“独立”的内部环境，并分析了此内部环境中O2、CO2的组成及其C2H2的作用，温度和湿度的变化等因素对果蔬产品质量及损伤的影响，指出目前要使MAP达到最佳内部包装环境尚存在一定的困难，本文也讨论了要解决这些困难的可能途径。
MAP (natural tone packaging) technology for all types of food packaging. Because it can improve the shelf life of fruit and vegetable products, it is particularly suitable for fresh fruits and vegetables packaging, compared with the CAP (Controlled Atmosphere Packaging), MAP less investment, easy to operate, and lower cost, which has been more and more widely used. This article describes the design procedure for MAP, which indicates that the sealed wrapper with the product forms an “independent” internal environment and analyzes the composition of the O2 and CO2 in the internal environment and the effects of C2H2, temperature and humidity Changes and other factors on the quality of fruits and vegetables and damage, pointed out that at present to make the MAP to achieve the best internal packaging environment there are still some difficulties, this article also discusses the possible ways to solve these difficulties.