Is it really organic? – Multi-isotopic analysis as a tool to discriminate between organic and conventional plants

Kristian Holst Laursen; A. Mihailova; S.D. Kelly; V.N. Epov; S. Berail; Jan Kofod Schjørring; O.F.X. Donard; E.H. Larsen; N. Pedentchouk; A.D. Marca-Bell; Ulrich Halekoh; J.E. Olesen; Søren Husted

doi:10.1016/j.foodchem.2013.05.068

Is it really organic? – Multi-isotopic analysis as a tool to discriminate between organic and conventional plants

Kristian Holst Laursen, A. Mihailova, S.D. Kelly, V.N. Epov, S. Berail, Jan Kofod Schjørring, O.F.X. Donard, E.H. Larsen, N. Pedentchouk, A.D. Marca-Bell, Ulrich Halekoh, J.E. Olesen, Søren Husted

Section for Plant and Soil Sciences

50 Citations (Scopus)

Abstract

Novel procedures for analytical authentication of organic plant products are urgently needed. Here we present the first study encompassing stable isotopes of hydrogen, carbon, nitrogen, oxygen, magnesium and sulphur as well as compound-specific nitrogen and oxygen isotope analysis of nitrate for discrimination of organically and conventionally grown plants. The study was based on wheat, barley, faba bean and potato produced in rigorously controlled long-term field trials comprising 144 experimental plots. Nitrogen isotope analysis revealed the use of animal manure, but was unable to discriminate between plants that were fertilised with synthetic nitrogen fertilisers or green manures from atmospheric nitrogen fixing legumes. This limitation was bypassed using oxygen isotope analysis of nitrate in potato tubers, while hydrogen isotope analysis allowed complete discrimination of organic and conventional wheat and barley grains. It is concluded, that multi-isotopic analysis has the potential to disclose fraudulent substitutions of organic with conventionally cultivated plants.

Original language	English
Journal	Food Chemistry
Volume	141
Issue number	3
Pages (from-to)	2812-2820
Number of pages	9
ISSN	0308-8146
DOIs	https://doi.org/10.1016/j.foodchem.2013.05.068
Publication status	Published - 2013

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Laursen, K. H., Mihailova, A., Kelly, S. D., Epov, V. N., Berail, S., Schjørring, J. K., Donard, O. F. X., Larsen, E. H., Pedentchouk, N., Marca-Bell, A. D., Halekoh, U., Olesen, J. E., & Husted, S. (2013). Is it really organic? – Multi-isotopic analysis as a tool to discriminate between organic and conventional plants. Food Chemistry, 141(3), 2812-2820. https://doi.org/10.1016/j.foodchem.2013.05.068

Laursen, KH, Mihailova, A, Kelly, SD, Epov, VN, Berail, S, Schjørring, JK, Donard, OFX, Larsen, EH, Pedentchouk, N, Marca-Bell, AD, Halekoh, U, Olesen, JE & Husted, S 2013, 'Is it really organic? – Multi-isotopic analysis as a tool to discriminate between organic and conventional plants', Food Chemistry, vol. 141, no. 3, pp. 2812-2820. https://doi.org/10.1016/j.foodchem.2013.05.068

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title = "Is it really organic? – Multi-isotopic analysis as a tool to discriminate between organic and conventional plants",

abstract = "Novel procedures for analytical authentication of organic plant products are urgently needed. Here we present the first study encompassing stable isotopes of hydrogen, carbon, nitrogen, oxygen, magnesium and sulphur as well as compound-specific nitrogen and oxygen isotope analysis of nitrate for discrimination of organically and conventionally grown plants. The study was based on wheat, barley, faba bean and potato produced in rigorously controlled long-term field trials comprising 144 experimental plots. Nitrogen isotope analysis revealed the use of animal manure, but was unable to discriminate between plants that were fertilised with synthetic nitrogen fertilisers or green manures from atmospheric nitrogen fixing legumes. This limitation was bypassed using oxygen isotope analysis of nitrate in potato tubers, while hydrogen isotope analysis allowed complete discrimination of organic and conventional wheat and barley grains. It is concluded, that multi-isotopic analysis has the potential to disclose fraudulent substitutions of organic with conventionally cultivated plants.",

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T1 - Is it really organic? – Multi-isotopic analysis as a tool to discriminate between organic and conventional plants

AU - Laursen, Kristian Holst

AU - Mihailova, A.

AU - Kelly, S.D.

AU - Epov, V.N.

AU - Berail, S.

AU - Schjørring, Jan Kofod

AU - Donard, O.F.X.

AU - Larsen, E.H.

AU - Pedentchouk, N.

AU - Marca-Bell, A.D.

AU - Halekoh, Ulrich

AU - Olesen, J.E.

AU - Husted, Søren

PY - 2013

Y1 - 2013

N2 - Novel procedures for analytical authentication of organic plant products are urgently needed. Here we present the first study encompassing stable isotopes of hydrogen, carbon, nitrogen, oxygen, magnesium and sulphur as well as compound-specific nitrogen and oxygen isotope analysis of nitrate for discrimination of organically and conventionally grown plants. The study was based on wheat, barley, faba bean and potato produced in rigorously controlled long-term field trials comprising 144 experimental plots. Nitrogen isotope analysis revealed the use of animal manure, but was unable to discriminate between plants that were fertilised with synthetic nitrogen fertilisers or green manures from atmospheric nitrogen fixing legumes. This limitation was bypassed using oxygen isotope analysis of nitrate in potato tubers, while hydrogen isotope analysis allowed complete discrimination of organic and conventional wheat and barley grains. It is concluded, that multi-isotopic analysis has the potential to disclose fraudulent substitutions of organic with conventionally cultivated plants.

AB - Novel procedures for analytical authentication of organic plant products are urgently needed. Here we present the first study encompassing stable isotopes of hydrogen, carbon, nitrogen, oxygen, magnesium and sulphur as well as compound-specific nitrogen and oxygen isotope analysis of nitrate for discrimination of organically and conventionally grown plants. The study was based on wheat, barley, faba bean and potato produced in rigorously controlled long-term field trials comprising 144 experimental plots. Nitrogen isotope analysis revealed the use of animal manure, but was unable to discriminate between plants that were fertilised with synthetic nitrogen fertilisers or green manures from atmospheric nitrogen fixing legumes. This limitation was bypassed using oxygen isotope analysis of nitrate in potato tubers, while hydrogen isotope analysis allowed complete discrimination of organic and conventional wheat and barley grains. It is concluded, that multi-isotopic analysis has the potential to disclose fraudulent substitutions of organic with conventionally cultivated plants.

U2 - 10.1016/j.foodchem.2013.05.068

DO - 10.1016/j.foodchem.2013.05.068

M3 - Journal article

C2 - 23871028

SN - 0308-8146

VL - 141

SP - 2812

EP - 2820

JO - Food Chemistry

JF - Food Chemistry

IS - 3

ER -

Is it really organic? – Multi-isotopic analysis as a tool to discriminate between organic and conventional plants

Abstract

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