Free Oligosaccharides in the Tea Plant
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概要
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The two oligosaccharides previously reported as unknown in the free-sugar fraction of tea leaf and seed were investigated. One (b-sugar) was orcin reaction positive, and gave similar Rf value to that of raftinose when developed with n-butanol-acetic acidwater (4:1:1), but with n-butanol-pyridinewater (3:2:1.5), the Rf value was definitely smaller. Its hydrolysate developed three spots of galactose, glucose and fructose on the chromatogram, but galactose content was larger than raffinose.<BR>The other sugar (a-sugar) was also orcin reaction positive, and gave similar Rf value to that of stachyose with both developing solvents but its hydrolysate showed four spots of galactose, glucose, fructose and xylose unlike stachyose.<BR>So, above-mentioned fact showed that these two oligosaccharides might be new tetrasac-charides.
- 日本茶業技術協会の論文
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- The Influence of Light upon the Chemical Constituents of Tea Seedling
- A Consideration upon the Adjustment of Yield of Tea Leaves:With Special Reference to the Maturity of Leaves
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