Effects of different fixation methods on the quality of green tea processed by purple bud leaves
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(1. Key Lab of Tea Science of Ministry of Education, Hunan Agricultral University, Changsha, Hunan 410128, China; 2. National Research Center of Engineering Technology for Utilization of Botanical Function Ingredients, Hunan Agricultral University, Changsha, Hunan 410128, China)

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    Abstract:

    Objective: To explore the best fixation method of purple bud green tea. Methods: Using two or three leaves and a bud of self-selected purple bud strain 9803 as raw materials, fresh leaves were treated by microwave, pan-frying, steam and hot air to prepare green tea, and the representative green tea samples were selected for sensory evaluation and quality analysis of taste and aroma. Results: Among the four methods of fixation, the comprehensive score of sensory evaluation of microwave green tea was the highest (89.65), and the main physical and chemical components of microwave green tea, water extract, tea polyphenols, anthocyanins, amino acids, and caffeine remained significantly higher than the other three green tea(P<0.05); the phenol ammonia ratio, ratio of ester catechin to total catechin were the lowest, and were 12.18 and 0.72, respectively. Conclusion: The quality of purple bud green tea prepared by microwave method was the best among the four methods.

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宋宪颖,黄艳梅,崔俪丹,等.杀青方法对紫色芽叶加工绿茶品质的影响[J].食品与机械英文版,2021,37(11):19-27.

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  • Received:April 15,2021
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  • Online: February 15,2023
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