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利用元素特征和稳定同位素追踪全球市场上的绿咖啡豆的来源。

Using elemental profiles and stable isotopes to trace the origin of green coffee beans on the global market.

机构信息

Fondazione Edmund Mach, Via Mach 1, 38010, San Michele all'Adige, TN, Italy.

出版信息

J Mass Spectrom. 2012 Sep;47(9):1132-40. doi: 10.1002/jms.3018.

DOI:10.1002/jms.3018
PMID:22972781
Abstract

A broad elemental profile incorporating 54 elements (Li, Be, B, Na, Mg, Al, P, K, Ca, Ti, V, Cr, Mn, Fe, Co, Ni, Cu, Zn, Ga, Ge, As, Se, Rb, Sr, Y, Mo, Pd, Ag, Cd, Sn, Sb, Te, Cs, Ba, La, Ce, Pr, Nd, Sm, Eu, Gd, Dy, Er, Tm, Yb, Re, Ir, Pt, Au, Hg, Tl, Pb, Bi and U) in combination with δ(2) H, δ(13) C, δ(15) N and δ(18) O was used to characterise the composition of 62 green arabica (Coffea arabica) and robusta (Coffea canephora) coffee beans grown in South and Central America, Africa and Asia, the four most internationally renowned areas of production. The δ(2) H, Mg, Fe, Co and Ni content made it possible to correctly assign 95% of green coffee beans to the appropriate variety. Canonical discriminant analysis, performed using δ(13) C, δ(15) N, δ(18) O, Li, Mg, P, K, Mn, Co, Cu, Se, Y, Mo, Cd, La and Ce correctly traced the origin of 98% of coffee beans.

摘要

采用了一种广泛的元素分析方法,其中包含 54 种元素(Li、Be、B、Na、Mg、Al、P、K、Ca、Ti、V、Cr、Mn、Fe、Co、Ni、Cu、Zn、Ga、Ge、As、Se、Rb、Sr、Y、Mo、Pd、Ag、Cd、Sn、Sb、Te、Cs、Ba、La、Ce、Pr、Nd、Sm、Eu、Gd、Dy、Er、Tm、Yb、Re、Ir、Pt、Au、Hg、Tl、Pb、Bi 和 U),结合 δ(2)H、δ(13)C、δ(15)N 和 δ(18)O,对生长在南美、中美、非洲和亚洲这四个国际知名咖啡产区的 62 种阿拉比卡(Coffea arabica)和罗布斯塔(Coffea canephora)咖啡豆的成分进行了特征描述。δ(2)H、Mg、Fe、Co 和 Ni 的含量使得 95%的绿咖啡豆可以正确地分配到相应的品种。使用 δ(13)C、δ(15)N、δ(18)O、Li、Mg、P、K、Mn、Co、Cu、Se、Y、Mo、Cd、La 和 Ce 进行的典型判别分析,正确地追溯了 98%的咖啡豆的来源。

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