核农学报2026，Vol.40Issue(7)：1375-1382,8.DOI:10.11869/j.issn.1000-8551.2026.07.1375
浙江省茶叶籽及油稳定同位素组成特征及影响因素研究
Characteristics and Influencing Factors of Stable Isotope Composition of Tea Seed and Oil in Zhejiang Province
摘要
Abstract
In order to investigate the elemental content and stable isotope characteristics of tea seeds and tea seed oil in Zhejiang Province,samples of tea fruits from two regions of Hangzhou and Ningbo and four varieties of tea fruits from the same production area were collected.Elemental analysis-stable isotope ratio mass spectrometry was used to analyze the elemental content of carbon and nitrogen(C％and N％)and the stable carbon,nitrogen,hydrogen,and oxygen isotope ratios(δ13C,δ15N,δ2H,and δ18O)in the tea seeds and tea seed oil,and to study the differences of the tea seeds and tea seed oil among the different regions and varieties.The δ15N values of tea seeds in Hangzhou and Ningbo-0.8‰ to 5.1‰ and 2.6‰ to 6.1‰,respectively.The 813C values of tea seed oil were-34.3‰ to-30.0‰ and-32.5‰ to-29.8‰,respectively.The δ15N value of tea seeds in Ningbo was significantly higher than that in Hangzhou,and the δ13C value of tea seed oil in Hangzhou was more negative.Varietal factors had a significant effect on the δ15N value of tea seeds and a lesser effect on the δ13C,82H and 618O values of tea seeds and tea seed oil.Overall,the elemental compositions in tea seeds and tea seed oil were more influenced by the origin.This study provides a theoretical basis for the establishment and characterization of the elemental content and stable isotope database of tea seeds and tea seed oil.关键词
茶叶籽及油/元素组成/稳定同位素/品种特征/产地差异Key words
tea seed and oil/elemental composition/stable isotope/characteristics of varieties/differences in origin引用本文复制引用
李蓉,王树林,聂晶,邵圣枝,袁玉伟,郑新强,李春霖..浙江省茶叶籽及油稳定同位素组成特征及影响因素研究[J].核农学报,2026,40(7):1375-1382,8.基金项目
浙江省农业科学院学科建设专项经费(2025) （2025）
