000			01397nam a22001697a 4500
003			OSt
005			20241210164358.0
008			241210b |||||||| |||| 00| 0 eng d
100			_aHong-Lin Liu
245			_aImproving the geographical traceability of tea in China based on stable isotope ratios
300			_ap1943–1954,
520			_aThe potential of improving the classification of tea samples from different regions was studied by using stable isotope ratios analysis. The stable isotope ratios of 44 elements in tea samples were determined (p < 0.05).The results showed that 34 stable isotopes ratios were statistically significant, and tea in the four regions had their own characteristic variables. PCA, HCA, PLS-DA, BP-ANN and LDA were used to analyze the stable isotope ratio data in tea. Six key variables were identified to provide the greatest difference between the samples. The overall correct classification rate, cross validation rate and blind validation rate given by LDA are all 100%, and the result is the best. This study has proved that the stable isotope ratio analysis method could improve the geographical origin traceability of Chinese tea.
654			_aGeographical traceability _aTea _a Stable isotope ratios _aChina
773	0		_080310 _9110681 _dGermany Springer _oJP393 _tJournal of Food Science and Technology _x0022-1155
942			_cJA
942			_2ddc
999			_c130543 _d130543