CAJ | 학술논문

稀土是近年来我国茶叶质量安全问题中的热点,关于茶叶稀土元素限量标准引起各界争论。茶树对轻稀土( La, Ce, Y和Nd等)具有较强的生物富集作用,其中茶树叶片中的稀土含量与生长期呈显著的正相关。本文简要概述了稀土元素的类别、毒理学研究进展和茶叶中稀土含量现状及溶出规律,并对茶叶中稀土元素的来源进行初步的分析。探讨了限量标准,为今后科学制定茶叶中稀土的限量标准,加强对茶叶监管提供参考。
희토시근년래아국다협질량안전문제중적열점,관우다협희토원소한량표준인기각계쟁론。다수대경희토( La, Ce, Y화Nd등)구유교강적생물부집작용,기중다수협편중적희토함량여생장기정현저적정상관。본문간요개술료희토원소적유별、독이학연구진전화다협중희토함량현상급용출규률,병대다협중희토원소적래원진행초보적분석。탐토료한량표준,위금후과학제정다협중희토적한량표준,가강대다협감관제공삼고。
The rare earth is a hotspot among the problems of tea quality and safety in recent years in china, and its limitation standard aroused controversy. Tea plant has an enrichment impact on light rare earth element ( La, Ce, Y and Nd, etc. ) , and there is a significant positive correlation between growing of tea leaves and total rare earth content. The types of rare earth elements, progress of toxicology research, the residue status and the leaching characteristics in tea were briefly outlined, the source of rare earth elements in tea was investigated preliminarily. The limitation standard of rare earth in tea was explored, which provided a reference for scientifically formulate the limitation standard of rare earth in tea, strengthened supervision in the future.