The Polishing Process of Tea (Part 1):The Effect of the Polishing Process on the Colour of Tea
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1. Spectrc-reflection percents of the polished tea were measured in order to study the effect of the polishing process on the colour of tea and the three attributes of the colour, represented by luminance, dominant wave length and purity were calculated by I.C.I. colour system.<BR>2. Spectro-reflection percents and luminance of the tea leaves were increased as the polishing process progressed, while the dominant wave length was slightly displaced on the shorter wave side.
- 日本茶業技術協会の論文
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