塑料软包装牛奶货架寿命的预测研究

The Predict Research On The Shelf-life Of The Milk In The Flexible Packaging

塑料软包装牛奶货架寿命影响因素众多,本文通过对软包装牛奶货架寿命的影响因素包括内在性质、包装以及流通环境的研究,找出当前软包装牛奶货架寿命评价主要标准为四大指标——感官指标、理化指标、微生物指标以及残留物指标。介绍了各个指标的研究背景,对新旧实验材料和方法、建模、结论等进行了对比和评价,并对基于新技术新仪器的质量评价方法进行研究。在对其理化指标的检测方法中,重点介绍了超声波探测技术及其数学模型。并且在如何用加速破坏性试验预测软包装牛奶货架寿命方面做了阐述。最后,在牛奶货架寿命预测方面提出自己的看法,即牛奶质量指标的检测开始向仪器化、高精度、半自动乃至全自动方向发展。

The shelf--life of the milk in the flexible packaging has a number of factors, this paper through the analysis of the factors, identifies the current common method to evaluation the shelf--life of the flexible packaging milk including sensory index, chemical index, Microbial indicators as well as residues of indicators. Introducts its research background, compares and evaluates the old and new experimental materials, methods, modeling, conclusions, etc. Studies the quality of evaluation methods based on new technologies and new equipment. In its physical and chemical indicators for the detection methods, introducts the ultrasonic detection technology and its mathematical model, describes how to speed up the destructive testing in the prediction of milk shelf--life of flexible packaging. Finally, put forward own views in the milk shelf--life prediction. That is, indicators of milk quality testing begines to be instrumentation, high-- precision, semi--automatic and even automatic direction.