With the dramatic increase of organic banana production worldwide, it is essential to be able to monitor compliance with organic specifications. While the detection of pesticide fraud is routinely controlled by detecting pesticide residues in organic bananas, the detection of fertilizer fraud is much more complex. We compared the δ¹³C and δ¹⁵N isotopic values of green bananas from organic and conventional farms at seven sites around the world. In our whole dataset, the δ¹⁵N values of banana fruits ranged between −1.25 and + 8.91‰. In all sites, δ¹⁵N values of organic banana were significantly higher than conventional fruits (mean value of + 5.24‰ and + 2.342‰, respectively). Conversely, the type of fertilization did not significantly alter δ¹³C values. Our results suggest that it is possible, upon arrival in importing countries, to differentiate bananas grown with synthetic fertilizer from those grown with organic fertilizer.

随着全球有机香蕉产量的急剧增加，必须能够监控有机规格的合规性。虽然农药欺诈的检测通常通过检测有机香蕉中的农药残留来控制，但肥料欺诈的检测要复杂得多。我们比较了来自全球七个地点的有机农场和传统农场的绿色香蕉的δ ¹³ C 和δ ^{15 N 同位素值。}在我们的整个数据集中，香蕉果实的δ ¹⁵ N 值介于 -1.25 和 + 8.91‰ 之间。在所有站点中，δ ¹⁵有机香蕉的N值显着高于常规水果（平均值分别为+ 5.24‰和+ 2.342‰）。相反，施肥类型没有显着改变δ ¹³ C值。我们的研究结果表明，在抵达进口国后，可以将使用合成肥料种植的香蕉与使用有机肥料种植的香蕉区分开来。