稳定同位素技术在林产品产地溯源和掺假鉴别中的应用研究进展

Progress in application of stable isotope in forest product traceability and adulteration detection

稳定同位素技术能够有效应用于林产品的产地溯源和掺假鉴别。利用碳、氢、氧、氮同位素技术,结合线性判别-主成分分析,能够较好地追溯中华猕猴桃Actinidia chinensis,樱桃Cerasus pseudocerasus,橄榄Canarium album油等林产品的产地;采用单一的同位素比例质谱,或者结合高效液相色谱、气相色谱,能够鉴别果汁饮料、保健品、香精香料的掺假;利用氮同位素能认证有机产品。基于国内外学者在林产品溯源、鉴别、有机产品认证等方面的研究工作,总结了稳定同位素技术的基本原理及其在林产品产地溯源和掺假鉴别中的应用研究进展,以期推动稳定同位素技术的更广泛应用,及完善中国林产品的检测技术并构建产品溯源体系。

Stable isotope technology can be used in forest product traceability and adulteration detection.Combined with LDA-PCA,the isotope ratios(13C/12C,D/H,18O/16O,15N/14N)were able to trace the geographical origin of kiwifruit,sweet cherries and extra-virgin olive oils.Stable carbon isotope was applied to authentication of fruit juice,health products and flavours by IRMS,HPLC-IRMS or GC-IRMS.Stable nitrogen isotope can verify the organic product.Based on the research of forest and organic product traceability and adulteration detection,this paper summarized the theory of stable isotope technology and application of stable isotope in forestry adulteration detection and trace ability.This paper aims to promote the application of stable isotope technology and to improve the method of adulteration detection and traceability in forest product.