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Authentication of organically grown plants – advantages and limitations of atomic spectroscopy for multi-element and stable isotope analysis

Laursen, K.H.; Schjoerring, J.K; Kelly, S.D. and Husted, S. (2014) Authentication of organically grown plants – advantages and limitations of atomic spectroscopy for multi-element and stable isotope analysis. Trends in Analytical Chemistry, 59, pp. 73-82.

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Online at: http://www.sciencedirect.com/science/article/pii/S0165993614001034#

Summary

Organic food products are believed to be healthier, safer and more environment-friendly than their conventional counterparts and are sold at premium prices. Consequently, adulteration of organic plants and fraudulent activities for economic profit are increasing. This has spurred the development of sophisticated analytical procedures for testing authenticity. We review the use of multi-element and stable-isotope analysis based on atomic spectroscopy for discriminating between organic and conventional plants. We conclude that inductively-coupled plasma-mass spectrometry, stable-isotope analysis of bulk plant tissue, and compound-specific isotope analysis based on isotope ratio-mass spectrometry are promising tools for documenting the fertilization history of organic plants. However, these techniques are challenged by the potential diversity of fertilization practices of organic and conventional plant production. We therefore recommend that analytical techniques are combined and coupled with chemometrics to develop statistical models that can classify the agricultural origin of plant products.


EPrint Type:Journal paper
Subjects:"Organics" in general
Farming Systems
Crop husbandry
Knowledge management > Education, extension and communication > Technology transfer
Values, standards and certification
Food systems
Knowledge management > Education, extension and communication
Research affiliation: European Union > CORE Organic II > AuthenticFood
Denmark > KU - University of Copenhagen
DOI:10.1016/j.trac.2014.04.008
Deposited By: Hansen, Grethe
ID Code:29065
Deposited On:30 Jun 2015 11:56
Last Modified:30 Jun 2015 11:56
Document Language:English
Status:Published
Refereed:Peer-reviewed and accepted

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