ZHENG Ling, ZHAO Yan-ping. Identification of Pu'er Teas with Different Fermentation Time by Surface-enhanced Raman Scattering Technology[J]. Chinese Journal of Luminescence, 2013,34(2): 230-234
ZHENG Ling, ZHAO Yan-ping. Identification of Pu'er Teas with Different Fermentation Time by Surface-enhanced Raman Scattering Technology[J]. Chinese Journal of Luminescence, 2013,34(2): 230-234 DOI: 10.3788/fgxb20133402.0230.
Identification of Pu'er Teas with Different Fermentation Time by Surface-enhanced Raman Scattering Technology
simple and scientific method to identify the Pu'er teas with different fermentation time by using surface-enhanced Raman scattering (SERS) technology at range of 600~1 800 cm
-1
.The results indicate that there exist many peaks at 655
732
959
1 238 cm
-1
. The realationship between fermentation time and the content of tea polyphenol
nitrogenous compounds
organic acid and sugar material in Pu'er teas are discussed. This way can provide a fast
simple and scientific optical method to identify the Pu'er teas with different fermentation time.
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references
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