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Agronomy 2018, 8(12), 294; https://doi.org/10.3390/agronomy8120294

Evaluation of Asparagine Concentration as an Indicator of the Acrylamide Formation in Cereals Grown under Organic Farming Conditions

1
Institute of crop science, University of Hohenheim, D-70599 Stuttgart, Germany
2
Chemisches und Veterinäruntersuchungsamt Stuttgart, Schaflandstraße 3/2, D-70736 Fellbach, Germany
*
Author to whom correspondence should be addressed.
Received: 22 October 2018 / Revised: 28 November 2018 / Accepted: 4 December 2018 / Published: 6 December 2018
(This article belongs to the Special Issue Organic Farming: Impacts on Food Quality and Human Health)
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Abstract

This study investigated the impact of organically grown cereals on the level of free asparagine (Asn) with simultaneous consideration of grain yields and flour qualities over three growing seasons in Germany. Additionally, the relation of free Asn and acrylamide (AA) was investigated. By including free Asn results of a second trial site, heritability of the trait free Asn was calculated. Free Asn was significantly influenced by species and within species by cultivars. Rye showed the highest free Asn amount, followed by einkorn, emmer, wheat, and spelt. Replacing rye with spelt would reduce free Asn by 85%. Cultivars differed in free Asn by up to 67% (wheat), 55% (spelt), and 33% (rye). Year significantly influenced free Asn levels. Heritability was high for wheat and spelt concerning locations, but regarding years, heritability was low for wheat but high for spelt and rye. For organically grown cereals, the relation between free Asn and AA formation has never been investigated. Across species and years, a correlation of R2 = 0.69 *** was found. Thus, free Asn can serve as an indicator for AA formation. In conclusion, the level of free Asn can be highly influenced by proper selection of species and cultivars. View Full-Text
Keywords: Acrylamide; free Asparagine; agriculture; organic farming; cultivars; cultivar selection; cereal production; cereals Acrylamide; free Asparagine; agriculture; organic farming; cultivars; cultivar selection; cereal production; cereals
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Stockmann, F.; Weber, E.A.; Mast, B.; Schreiter, P.; Merkt, N.; Claupein, W.; Graeff-Hönninger, S. Evaluation of Asparagine Concentration as an Indicator of the Acrylamide Formation in Cereals Grown under Organic Farming Conditions. Agronomy 2018, 8, 294.

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