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

机译:使用元素轮廓和稳定同位素在全球市场上追踪绿色咖啡豆的来源

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摘要

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 ~2H, 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 ~2H, 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.
机译:包含54种元素的广泛元素分布(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〜2H,δ〜(13)C,δ〜(15)N和δ〜(18)O来表征在南美洲和中美洲,非洲和亚洲这四个国际最著名的生产地区种植了62种绿色阿拉伯咖啡(Coffea arabica)和罗布斯塔(Coffea canephora)咖啡豆。 δ〜2H,Mg,Fe,Co和Ni的含量使得可以正确地将95%的生咖啡豆分配给适当的品种。用δ〜(13)C,δ〜(15)N,δ〜(18)O,Li,Mg,P,K,Mn,Co,Cu,Se,Y,Mo,Cd,La执行典范判别分析Ce正确地追溯了98%的咖啡豆的来源。

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