Determination And Resource Utilization On The Tea Quality Of Plants Of Spiraea

This study takes the Spiraea trilobata L., S. media Schmidt, S. elegans Pojark., S. salicifolia L. and S. pubescens Turcz. as the test materials which are distributed in the territory of Inner Mongolia. The author measures and compares the components of tea such as water, total ash, caffeine, tea polyphenols , free amino acids, copper, lead, fluoride in some organs like stems, leaves, fruits by applying some methods like GB/T8312, GB/T8313, GB/T8314, GB/T5009.13, GB/T5009. Combining with the needs of actual production, and from the perspective of the development and use of tea drinks, the author selects the most suitable resource for tea drinks, and the best part and best time for picking this resource. This study makes a new approach for future application of the wild resource like the Spiraea, and provides the oretical support for the actual production too. The major findings are as follows:1. In the five kinds of Spiraea, the comprehensive quality of the S. pubescens Turcz.is the best . The distribution of it is wide, and the quantity of it is large. It can be regarded as the most suitable wild resource of tea to develop and use.2. The best quality of the comprehensive tea is during the nutrition period after the fruit of the Spiraea pubescens Turcz., which is the most suitable period for collecting as the resource of tea. During this period, the leaf is the best part for picking.3. In different years, and in the main ingredient in tea testing of Spiraea pubescens Turcz., the content of caffeine and fluoride is positively correlated with air temperature, the content of lead, copper is positively correlated with precipitation, and other detection components are hardly affected by the air condition.