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Green tea in a suitable fresh tea leaves as raw materials, mainly through fixing, rolling, drying processing procedures. Pearl-shaped tea in Guizhou Province, Guizhou Province of tea, one of the main development, the processing flow is as follows: Spreading → → drying-shaped crank up → rolling → dehydration → → Titian. Determined by pre-test, the test to study the critical process of Guizhou beads shaped tea, spreading, water loss, do shape, Titian four processes. The various stages of the test on the basis of the existing processing conditions Guizhou beads shaped tea Spreading time, dehydration and Aoba water content do shaped leaf weight, Airing before Titian Titian effect the impact of four made a comparative analysis. Provide a theoretical basis and reference for the development of technical standards Guizhou beads shaped tea quality improvement and Guizhou beads shaped tea processing. The results showed that: 1, With Spreading the extension of time, the lay it leaves the degree of change gradually deepened, about Spreading 14h, fresh leaves almost completely lose their luster, color darkens, leaves soft, meet green tea on Spreading leaves quality requirements; the tea polyphenols total amount of amino acids, soluble sugar content of each component of the catechins reconcile the proportion is more conducive to the formation of tea endoplasmic; Spreading leaves brightness, greenness optimal state. Therefore, under natural conditions in Guizhou beads shaped tea processing, maintaining a thickness of about 5cm, the ventilation and lay 14h appropriate. 2, water loss, compared with a roller way, the hot air way green leaf quality soft green color; polyphenols, amino acids, soluble sugar content; and hot air lose water quickly and evenly, and low energy consumption. Two Aoba maintain about 42% moisture content, and do shape the process state. Draw the Guizhou bead-shaped tea using hot air dehydration, two Aoba moisture content of about 42%, tea production and quality formation favorable. Do other technical parameters for each stage of the shaped consistent case, do form the first phase of vote leaves 3 ~ 3.5kg, do shaped 40min, do form the second phase of vote leaves about 5kg, do shape 60 ~~ 70min to do shaped third stage cast leaves around 8kg, the do form 100 ~~ 120min, do shape to protect various stages of the process running in good condition to meet tea requirements in the shape of the product, containing ingredients change and chromatic aberration results is relatively satisfactory. Guizhou beads shaped tea dried After 8h Airing, Titian, aroma components, alcohols, ketones content was increased after various processing amino acids, soluble sugar content, several major aroma substances The content changes Guizhou beads shaped tea can improve its aroma after the 8h about Airing Titian.
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