Welcome to Chinese Agricultural Science Bulletin,

Chinese Agricultural Science Bulletin ›› 2014, Vol. 30 ›› Issue (18): 308-314.doi: 10.11924/j.issn.1000-6850.2013-2677

Special Issue: 园艺

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Optimization of the Rotary Continuous Fixation Parameters of Needle-Type Premium Green Tea Processing

  

  • Received:2013-10-14 Revised:2013-10-30 Online:2014-06-25 Published:2014-06-25

Abstract: In order to explore process on the impact of sensory quality and sensory components of needle-type premium green tea and bring up optimal parameters in rotary continuous fixation. The optimized parameters of rotary continuous fixation could be carried out by multi-index evaluating on needle-type premium green tea, base on its appearance, aroma and taste. The factors effect on quality components of needle-type premium green tea were explored, including fixing temperature, fixation time and amount of input leaves. The results the best fixing temperature was 270℃, fixing time was 90 s and amount of input leaves was 125 kg/h in rotary continuous fixation. Fixing temperature had a significant impact on total amount of amino acids caffeine content, especially on tea polyphenols. Fixing time greatly affects water extracts, tea polyphenols and amino acids content. And amount of input leaves had a significant influence on caffeine content.