AI Article Synopsis

  • Basic standard samples help make sure that tea is always consistent and good quality.
  • This study looked closely at different grades of Shuixian tea to see how their aromas are different and what makes them smell that way.
  • The research found that higher grades have more floral and fruity smells, while lower grades have more roasted and sweet smells, helping improve tea standards in China and worldwide.

Article Abstract

Basic standard samples are integral for ensuring consistency and quality control of tea. Understanding the real reasons behind the hierarchical system of Shuixian tea grades in the Chinese national standard is crucial to the scientific development of tea standardization. In this investigation, different grade samples of Shuixian tea strictly conformed to the Chinese national standard, serving as the research objects. Sensory evaluation, SEM and HS-SPME-GC-MS were employed to comprehensively analyze the aroma characteristics. The odor profiles of special grade samples predominantly featured floral and fruity aromas, which attributed to compounds such as geraniol, indole, phenylethyl alcohol. Additionally, hexanal, (E)-3-hexen-1-ol and other compounds contributed to fruity and sweet aroma in first grade. Notably, the predominant roasted and sweet aromas of second grade were attributed to compounds including pyridine, 2,5-dimethyl-pyrazine. This study lays a solid foundation for the scientific development of Chinese national standards and international standard system.

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Source
http://dx.doi.org/10.1016/j.foodchem.2024.140342DOI Listing

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