Bulk and compound-specific stable isotope ratio analysis for authenticity testing of organically grown tomatoes

Research output: Contribution to journal › Journal article › Research › peer-review

Standard

Bulk and compound-specific stable isotope ratio analysis for authenticity testing of organically grown tomatoes. / Bontempo, Luana; van Leeuwen, Katryna A.; Paolini, Mauro; Laursen, Kristian Holst; Micheloni, Cristina; Prenzler, Paul D.; Ryan, Danielle; Camin, Federica.

In: Food Chemistry, Vol. 318, 126426, 2020.

Research output: Contribution to journal › Journal article › Research › peer-review

Harvard

Bontempo, L, van Leeuwen, KA, Paolini, M, Laursen, KH, Micheloni, C, Prenzler, PD, Ryan, D & Camin, F 2020, 'Bulk and compound-specific stable isotope ratio analysis for authenticity testing of organically grown tomatoes', Food Chemistry, vol. 318, 126426. https://doi.org/10.1016/j.foodchem.2020.126426

APA

Bontempo, L., van Leeuwen, K. A., Paolini, M., Laursen, K. H., Micheloni, C., Prenzler, P. D., Ryan, D., & Camin, F. (2020). Bulk and compound-specific stable isotope ratio analysis for authenticity testing of organically grown tomatoes. Food Chemistry, 318, [126426]. https://doi.org/10.1016/j.foodchem.2020.126426

Vancouver

Bontempo L, van Leeuwen KA, Paolini M, Laursen KH, Micheloni C, Prenzler PD et al. Bulk and compound-specific stable isotope ratio analysis for authenticity testing of organically grown tomatoes. Food Chemistry. 2020;318. 126426. https://doi.org/10.1016/j.foodchem.2020.126426

Author

Bontempo, Luana ; van Leeuwen, Katryna A. ; Paolini, Mauro ; Laursen, Kristian Holst ; Micheloni, Cristina ; Prenzler, Paul D. ; Ryan, Danielle ; Camin, Federica. / Bulk and compound-specific stable isotope ratio analysis for authenticity testing of organically grown tomatoes. In: Food Chemistry. 2020 ; Vol. 318.

Bibtex

@article{fd4b7042b86e40e798be2e2c9b6382b5,
title = "Bulk and compound-specific stable isotope ratio analysis for authenticity testing of organically grown tomatoes",
abstract = "Until now, there has been a lack of analytical methods that can reliably verify the authenticity of organically grown plants and derived organic food products. In this study, stable isotope ratio analysis of hydrogen (H, δ2H), carbon (C, δ13C), nitrogen (N, δ15N), oxygen (O, δ18O) and sulfur (S, δ34S) was conducted along the tomato passata production process using organic and conventionally grown tomatoes from two Italian regions over two years. A gas chromatography-combustion-isotope ratio mass spectrometry (GC-C-IRMS) based method was developed and applied for analysis of C and N isotope ratios in amino acids derived from tomatoes. Of the bulk isotope ratios, δ15N was the most significant parameter for discriminating organic from conventional products. The classification power was improved significantly by compound-specific isotope analysis regardless of the production years and regions. We conclude that isotope analysis of amino acids is a novel analytical tool for complementing existing certification and control procedures in the organic tomato sector.",
keywords = "Amino acids, Compound-specific, Organic, Stable isotope ratios, Tomatoes",
author = "Luana Bontempo and {van Leeuwen}, {Katryna A.} and Mauro Paolini and Laursen, {Kristian Holst} and Cristina Micheloni and Prenzler, {Paul D.} and Danielle Ryan and Federica Camin",
year = "2020",
doi = "10.1016/j.foodchem.2020.126426",
language = "English",
volume = "318",
journal = "Food Chemistry",
issn = "0308-8146",
publisher = "Elsevier",

}

RIS

TY - JOUR

T1 - Bulk and compound-specific stable isotope ratio analysis for authenticity testing of organically grown tomatoes

AU - Bontempo, Luana

AU - van Leeuwen, Katryna A.

AU - Paolini, Mauro

AU - Laursen, Kristian Holst

AU - Micheloni, Cristina

AU - Prenzler, Paul D.

AU - Ryan, Danielle

AU - Camin, Federica

PY - 2020

Y1 - 2020

N2 - Until now, there has been a lack of analytical methods that can reliably verify the authenticity of organically grown plants and derived organic food products. In this study, stable isotope ratio analysis of hydrogen (H, δ2H), carbon (C, δ13C), nitrogen (N, δ15N), oxygen (O, δ18O) and sulfur (S, δ34S) was conducted along the tomato passata production process using organic and conventionally grown tomatoes from two Italian regions over two years. A gas chromatography-combustion-isotope ratio mass spectrometry (GC-C-IRMS) based method was developed and applied for analysis of C and N isotope ratios in amino acids derived from tomatoes. Of the bulk isotope ratios, δ15N was the most significant parameter for discriminating organic from conventional products. The classification power was improved significantly by compound-specific isotope analysis regardless of the production years and regions. We conclude that isotope analysis of amino acids is a novel analytical tool for complementing existing certification and control procedures in the organic tomato sector.

AB - Until now, there has been a lack of analytical methods that can reliably verify the authenticity of organically grown plants and derived organic food products. In this study, stable isotope ratio analysis of hydrogen (H, δ2H), carbon (C, δ13C), nitrogen (N, δ15N), oxygen (O, δ18O) and sulfur (S, δ34S) was conducted along the tomato passata production process using organic and conventionally grown tomatoes from two Italian regions over two years. A gas chromatography-combustion-isotope ratio mass spectrometry (GC-C-IRMS) based method was developed and applied for analysis of C and N isotope ratios in amino acids derived from tomatoes. Of the bulk isotope ratios, δ15N was the most significant parameter for discriminating organic from conventional products. The classification power was improved significantly by compound-specific isotope analysis regardless of the production years and regions. We conclude that isotope analysis of amino acids is a novel analytical tool for complementing existing certification and control procedures in the organic tomato sector.

KW - Amino acids

KW - Compound-specific

KW - Organic

KW - Stable isotope ratios

KW - Tomatoes

U2 - 10.1016/j.foodchem.2020.126426

DO - 10.1016/j.foodchem.2020.126426

M3 - Journal article

C2 - 32135420

AN - SCOPUS:85080097339

VL - 318

JO - Food Chemistry

JF - Food Chemistry

SN - 0308-8146

M1 - 126426

ER -

ID: 238678103