The cytotoxicity of two samples was very small or not. Cells toxicity test completely applied to safety evaluation of Pu'er tea.
2
云南普洱熟茶和生茶不同的生产工艺会造成普洱茶稀土含量的差异，并影响产品质量。
There was a significant difference between ripened tea rare earth elements and raw tea's from the same sources, which affected some ripened tea quality at last.
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