Perini Matteo, Bontempo Luana, Ziller Luca, Barbero Alice, Caligiani Augusta, Camin Federica
Fondazione Edmund Mach, via E. Mach, 1, 38010 San Michele all'Adige, Italy.
Dipartimento di Scienze degli Alimenti, Università di Parma, Parco Area delle Scienze 59A, 43124, Parma, Italy.
J Mass Spectrom. 2016 Sep;51(9):684-9. doi: 10.1002/jms.3833.
The isotopic profile (δ(13) C, δ(15) N, δ(18) O, δ(2) H, δ(34) S) was used to characterise a wide selection of cocoa beans from different renowned production areas (Africa, Asia, Central and South America). The factors most influencing the isotopic signatures of cocoa beans were climate and altitude for δ(13) C and the isotopic composition of precipitation water for δ(18) O and δ(2) H, whereas δ(15) N and δ(34) S were primarily affected by geology and fertilisation practises. Multi-isotopic analysis was shown to be sufficiently effective in determining the geographical origin of cocoa beans, and combining it with Canonical Discriminant Analysis led to more than 80% of samples being correctly reclassified. Copyright © 2016 John Wiley & Sons, Ltd.
同位素特征（δ(13)C、δ(15)N、δ(18)O、δ(2)H、δ(34)S）被用于表征来自不同著名产区（非洲、亚洲、中美洲和南美洲）的多种可可豆。影响可可豆同位素特征的最主要因素，对于δ(13)C来说是气候和海拔，对于δ(18)O和δ(2)H来说是降水的同位素组成，而δ(15)N和δ(34)S主要受地质和施肥方式影响。多同位素分析在确定可可豆的地理来源方面显示出足够的有效性，并且将其与典型判别分析相结合使得超过80%的样本被正确重新分类。版权所有© 2016约翰威立父子有限公司。
