Analysis of main taste substances and sensory evaluation of Shuixian Wuyi rock tea narcissus in different years
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(1. College of Food Science, Fujian Agriculture and Forestry University, Fuzhou, Fujian 350002, China; 2. College of Tea and Food Science, Wuyi University, Nanping, Fujian 354300, China)

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    Abstract:

    [Objective] This study aimed to investigate the correlation between taste substances and flavor presentation intensity of Shuixian Wuyi rock tea from different storage years. [Methods] The main taste substances, including tea polyphenols, flavonoids, free amino acids, soluble sugars, catechins and other components, were detected in several years of Narcissus (2022, 2018, 2016, 2014, 2012, 2010, 2008, 2006 for storage 1, 3, 5, 7, 9, 11, 13, 15 years, respectively) by using chemical methods and high-performance liquid chromatography, and the reasons for the change of the two and their correlation were analyzed by combining with the sensory evaluation of the electronic tongue. [Results] With the increase of storage year, the contents of tea polyphenols, soluble sugars, and catechins in Narcissus showed a decreasing trend, the total flavonoids and free amino acids showed an inconspicuous trend, and the contents of caffeine, gallic acid, and theaflavin increased in general. Its freshness showed an increasing trend, richness, bitterness, astringency, and its aftertaste showed a decreasing trend, while the salty and sweet tastes fluctuated up and down within a certain level. [Conclusion] EGCG of Shuixian in different years showed a strong positive correlation with a bitter taste, astringent aftertaste, and richness, while EGC showed a strong negative correlation with sourness, TF, and astringency.

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宋晓月,吴志锋,邱慕涛,等.不同年份武夷岩茶水仙主要滋味物质分析与感官评价[J].食品与机械英文版,2024,40(6):170-175,191.

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History
  • Received:September 19,2023
  • Revised:
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  • Online: July 22,2024
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