Geographical traceability of virgin olive oils from south-western Spain by their multi-elemental composition
Geographical traceability of virgin olive oils from south-western Spain by their multi-elemental composition
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DOI：
10.1016/j.foodchem.2014.07.104
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发表时间：
2015-02-15
期刊：
影响因子：
8.8
通讯作者：
Garcia-Gonzalez, Diego L.
中科院分区：
文献类型：
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作者：
Beltran, Maria;Sanchez-Astudillo, Maria;Garcia-Gonzalez, Diego L.
初榨橄榄油的地理可追溯性可以通过与产区有关的化学物种来控制。这些物种中含有多种微量元素。这个假设是，元素从土壤到石油的转移受到微小变化的影响，因此这种化学信息可以用于地理可追溯性。为了证实这一假设，对来自西班牙西南部的初榨橄榄油中的微量元素进行了分析，并在相应的橄榄渣和土壤中测定了相同的元素。根据不同品种和不同产地，研究了不同浓度的差异。结果表明，在土壤(W、Fe、Na)、橄榄渣(W、Fe、Na、Mg、Mn、Ca、Ba、Li)和橄榄油(W、Fe、Mg、Mn、Ca、Ba、Li、Bi)中元素的选择有一定的一致性，这支持了它们在溯源方面的实用性。就橄榄油而言，93%的样品按地理来源进行了正确分类(BEAS为96%，Gibraleon为77%，Niebla为91%，SanLucar de Guadiana为100%)。(C)2014爱思唯尔有限公司。保留所有权利。
The geographical traceability of virgin olive oil can be controlled by chemical species that are linked to the production area. Trace elements are among these species. The hypothesis is that the transfer of elements from the soil to the oil is subjected to minor variations and therefore this chemical information can be used for geographical traceability. In order to confirm this hypothesis, the trace elements of virgin olive oils from south-western Spain were analysed, and the same elements were determined in the corresponding olive-pomaces and soils. The differences in the concentration were studied according to cultivars and locations. Results show some coincidences in the selection of elements in soils (W, Fe, Na), olive-pomace (W, Fe, Na, Mg, Mn, Ca, Ba, Li) and olive oils (W, Fe, Mg, Mn, Ca, Ba, Li, Bi), which supports their utility in traceability. In the case of olive oils, 93% of the samples were correctly classified in their geographical origins (96% for Beas, 77% for Gibraleon, 91% for Niebla, and 100% for Sanlucar de Guadiana). (C) 2014 Elsevier Ltd. All rights reserved.