温湿度条件对六堡茶安全贮藏的影响及孢子计数法的应用

The Influence of Temperature and Humidity on the Safe Storage of Liupao Tea and the Application of Spore Counting Method

研究了温度35、30、25℃,湿度90%、80%、70%条件下六堡茶含水量变化及霉变情况,分析了温湿度对六堡茶含水量及霉变情况的影响,确定了六堡茶易霉变的温湿度条件;优化了孢子计数法应用于六堡茶的方法参数并评估了其在预测六堡茶霉变程度的可行性。结果表明,温度低于25℃,湿度低于70%是六堡茶防止霉变的最优贮藏条件;孢子数量增长水平与霉变程度具有同步性,此方法应用于快速评估六堡茶霉变情况是可行的,且初步确定发生霉变的孢子数临界值为30.00×10^(7)个/g。结果为确定六堡茶的安全贮藏条件提供了依据,为其霉变程度的快速评估提供了可供参考的新方法。

The change of water content,mildew of Liupao tea at 35℃,30℃,25℃and humidity of 90%,80%and 70%were studied.The influence of temperature and humidity on water content and mildew of Liupao tea was analyzed,and the temperature and humidity conditions of Liupao tea were determined.The parameters of spore counting method applied to Liupao tea were optimized and the feasibility of spore counting method in predicting the mildew degree of Liupao tea was evaluated.The results showed that temperature below 25℃and humidity below 70%were the best storage conditions for Liupao tea to prevent mildew.The increase level of spore number and the degree of mildew were synchronized.This method was feasible for rapid assessment of mildew of Liupao tea,and the critical value of the number of spores with mildew was preliminarily determined to be 30.00×10^(7)·g^(–1).The results of this study could provide a theoretical basis for the safe storage conditions of Liupao tea,and a new method for rapid assessment of its mildew degree.