不同品种茶鲜叶稀土含量研究
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摘要
为探讨不同基因型茶树品种稀土含量差异,采用电感耦合等离子体-质谱法(inductively coupled plasma-mass spectrometry,ICP-MS)测定湖北武汉同一栽培管理条件下的45份茶树品种16种稀土元素含量。结果表明:45份样品稀土总量在209.81μg/kg～1 415.62μg/kg,平均值555.02μg/kg,适制乌龙茶品种稀土元素含量普遍高于适制绿茶品种。茶叶中16种稀土元素含量差异较大,所有品种稀土元素以Ce元素含量最高、其次为La元素,平均含量分别为190.00μg/kg,102.61μg/kg。样品中轻稀土含量高于重稀土含量。各轻稀土元素含量差异较大,但具有相似的丰度模式。45个茶树品种中筛选低吸收稀土元素品种1个、富集稀土元素品种2个、选择性吸收稀土元素品种1个。筛选结果为选育低吸收稀土元素品种、研究茶树吸附稀土元素机制提供理论依据。
The inductively coupled plasma mass spectrometry(ICP-MS)was employed for the determination of 16 rare earth elements(REEs)in 45 tea samples collected from the same cultivation and management conditions in Hubei Wuhan in order to study the difference of rare earth elements in different tea cultivars. The results showed that the contents of the rare earth element ranged from 209.81 μg/kg to 1 415.62 μg/kg in the tea samples with the average was 555.02 μg/kg. The content of rare earth elements in suitable oolong tea varieties was generally higher than that in suitable green tea varieties. The contents of 16 rare earth elements in tea samples were significant. The content of Ce was the highest in all varieties,followed by La,with the average content of 190.00 μg/kg and 102.61 μg/kg,respectively. The content of light rare earth was higher than heavy rare earth. Although the content distribution of the light rare earth elements in different tea cultivars presented significant differences,but showed similar abundance curve. 1 variety with low-absorption rare earth elements,2 varieties with enriched rare earth elements,1 variety with selective absorption of rare earth elements were selected from 45 tea varieties. Thus providing reference for the next screening of anti-REE tea cultivars and studying the mechanism of REE adsorption by tea plants.
The inductively coupled plasma mass spectrometry(ICP-MS)was employed for the determination of 16 rare earth elements(REEs)in 45 tea samples collected from the same cultivation and management conditions in Hubei Wuhan in order to study the difference of rare earth elements in different tea cultivars. The results showed that the contents of the rare earth element ranged from 209.81 μg/kg to 1 415.62 μg/kg in the tea samples with the average was 555.02 μg/kg. The content of rare earth elements in suitable oolong tea varieties was generally higher than that in suitable green tea varieties. The contents of 16 rare earth elements in tea samples were significant. The content of Ce was the highest in all varieties,followed by La,with the average content of 190.00 μg/kg and 102.61 μg/kg,respectively. The content of light rare earth was higher than heavy rare earth. Although the content distribution of the light rare earth elements in different tea cultivars presented significant differences,but showed similar abundance curve. 1 variety with low-absorption rare earth elements,2 varieties with enriched rare earth elements,1 variety with selective absorption of rare earth elements were selected from 45 tea varieties. Thus providing reference for the next screening of anti-REE tea cultivars and studying the mechanism of REE adsorption by tea plants.
引文
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[21]姚清华,林虬,颜孙安,等.基于稀土元素指纹分析判别安溪铁观音和华安铁观音的研究[J].现代食品科技,2017,33(4):295-299
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[23]杨如兴,张磊,尤志明,等.白云特早新品系的茶类适制性及香气成分分析[J].福建农业学报,2011,26(6):971-976
[24]陈常颂,钟秋生,游小妹,等.茶树新品系‘玉翠’茶类适制性鉴定[J].茶叶学报,2017,58(31):31-34
[25]方志青,王娅,王志康.贵州省地产茶叶中稀土元素残留状况研究[J].食品研究与开发,2016,37(21):148-150
[26]方灵,姚清华,苏德森,等.不同产区及季节铁观音中稀土元素的组成特征研究[J].食品安全质量检测学报,2016,7(11):4627-4632
[27]周妍,闻胜,张颖,等.鄂东南地区砖茶和绿茶中稀土含量及暴露水平[J].中国食品卫生杂志,2015,27(6):683-686
[28]Migaszewski Z M,Ga覥uszka A.The Characteristics,occurrence,and geochemical behavior of rare earth elements in the environment:AReview[J].Critical Reviews in Environmental Science and Technology,2015,45(5):429-471
[2]Yu L,Dai Y C,Yuan Z K,et al.Effects of rare earth elements on telomerase activity and apoptosis of human peripheral blood mononuclear cells[J].Biological Trace Element Research,2007,116(1):53-59
[3]石元值,韩文炎,马立锋,等.茶叶中稀土氧化物总量现状及其溶出特性研究[J].茶叶科学,2011,31(4):349-354
[4]杨秀芳,孔俊豪,赵玉香,等.不同稀土含量水平茶叶中稀土浸出率研究[J].中国茶叶加工,2012(1):14-17
[5]梁剑锋,李亚.ICP-MS法测定六堡茶冲泡过程中稀土浸出率的研究[J].轻工科技,2016(6):12-13
[6]陆秋艳,傅武胜,张文婷.福建省不同种类茶叶中稀土氧化物浸出率研究[J].海峡预防医学杂志,2017,23(6):6-7,14
[7]骆新峥,林松.稀土在有机茶园土壤-茶叶-茶汤系统中的迁移研究[J].食品安全质量检测学报,2017,8(1):265-269
[8]彭传燚,李大祥,宛晓春,等.茶叶中稀土元素的研究进展[J].食品安全质量检测学报,2015,6(4):1199-1204
[9]赵倩倩,刘慧,王亚喆,等.稀土元素在植物学中的研究进展[J].食品研究与开发,2015,36(19):176-179
[10]王常红,汪东风,杨进华,等.稀土对茶树生殖生长的影响[J].茶叶科学,2000,20(1):55-58
[11]陈锋.福建省武夷岩茶中稀土元素的研究[D].福州:福建农林大学,2014
[12]林虬,姚清华,苏德森,等.福建省主要茶类稀土含量区域分布及组成特征[J].中国食品学报,2016,16(10):190-196
[13]杨婉秋,葛丹丹,刘丹丹.云南省保山市不同种类茶叶中轻稀土元素分析[J].昆明学院学报,2015,37(3):25-29
[14]白婷婷.安溪乌龙茶农药残留规律与稀土污染成因探究[D].福州:福建农林大学,2010
[15]陈磊,林锻炼,高志鹏,等.稀土元素在茶园土壤和乌龙茶中的分布特性[J].福建农林大学学报(自然科学版),2011,40(6):595-601
[16]杨秀芳,徐建峰,翁昆,等.茶树成熟新梢不同部位元素含量研究[J].中国茶叶加工,2008(3):18-20
[17]王琼琼,薛志慧,林伟东,等.不同茶树种质间稀土元素积累差异研究[J].园艺学报,2017,44(6):1198-1206
[18]章剑扬,张颖彬,金寿珍,等.浙江省十大名茶主要重金属元素分析[J].中国农业科学,2014,47(19):3914-3921
[19]陈巧,李明晖,林丽容,等.闽东茶区土壤、树根、茶叶稀土含量测定及相关性的研究[J].质量技术监督研究,2013(4):19-23
[20]刘宏程,林昕,和丽忠,等.基于稀土元素含量的普洱茶产地识别研究[J].茶叶科学,2014,34(5):451-457
[21]姚清华,林虬,颜孙安,等.基于稀土元素指纹分析判别安溪铁观音和华安铁观音的研究[J].现代食品科技,2017,33(4):295-299
[22]林昕,王丽,兰珊珊,等.云南普洱茶产地微量元素的指纹溯源[J].现代食品科技,2018,34(8):231-239
[23]杨如兴,张磊,尤志明,等.白云特早新品系的茶类适制性及香气成分分析[J].福建农业学报,2011,26(6):971-976
[24]陈常颂,钟秋生,游小妹,等.茶树新品系‘玉翠’茶类适制性鉴定[J].茶叶学报,2017,58(31):31-34
[25]方志青,王娅,王志康.贵州省地产茶叶中稀土元素残留状况研究[J].食品研究与开发,2016,37(21):148-150
[26]方灵,姚清华,苏德森,等.不同产区及季节铁观音中稀土元素的组成特征研究[J].食品安全质量检测学报,2016,7(11):4627-4632
[27]周妍,闻胜,张颖,等.鄂东南地区砖茶和绿茶中稀土含量及暴露水平[J].中国食品卫生杂志,2015,27(6):683-686
[28]Migaszewski Z M,Ga覥uszka A.The Characteristics,occurrence,and geochemical behavior of rare earth elements in the environment:AReview[J].Critical Reviews in Environmental Science and Technology,2015,45(5):429-471