Precise determination of strontium isotope ratios by TIMS to authenticate tomato geographical origin

被引：37
作者：
Trincherini, P. R. [1 ]
Baffi, C. [2 ]
Barbero, P. [1 ]
Pizzoglio, E. [1 ]
Spalla, S. [2 ]
机构：
[1] LIMS, I-28921 Verbania, Italy
[2] Univ Cattolica S Cuore, Ist Chim Agr & Ambientale, I-29122 Piacenza, Italy
来源：
FOOD CHEMISTRY | 2014年 / 145卷
关键词：
Strontium isotopic composition; TIMS; Food authentication; Fraud; Geographical origin; Tomato; MASS-SPECTROMETRY; IDENTIFICATION; PASTE; SOIL;
D O I：
10.1016/j.foodchem.2013.08.030
中图分类号：
O69 [应用化学];
学科分类号：
081704 ;
摘要：
Thermal Ionisation Mass Spectrometry (TIMS) was applied to discriminate a total of 118 tomato samples (berries, "passata", tinned tomatoes, sauce, double and triple concentrate) coming from two different countries. The TIMS technique gave significantly different results for the Sr-87/Sr-86 ratios and delta parts per thousand values between Chinese and Italian tomato samples, irrespective of the treatment type. This technique proved to be a "robust" method, suitable for a precise discrimination of the two geographical origins. TIMS was able, within the Italian samples, to discriminate different geographical production areas, by virtue of different Sr-87/Sr-86 ratios and delta parts per thousand values. This technique could be employed in the field of food safety and quality, as a profitable tool for authenticating tomato geographical origin. (C) 2013 Elsevier Ltd. All rights reserved.
引用
收藏
页码：349 / 355
页数：7
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