Part of this paper was presented as a poster with abstract at the First International Conference on Organic Food Quality and Health Research in Prague, Czech Republic, 18–20 May 2011.
Sensory, yield and quality differences between organically and conventionally grown winter wheat†
Article first published online: 3 AUG 2012
Copyright © 2012 Society of Chemical Industry
Journal of the Science of Food and Agriculture
Special Issue: First International Conference on Organic Food Quality and Health Research
Volume 92, Issue 14, pages 2819–2825, November 2012
How to Cite
Arncken, C. M., Mäder, P., Mayer, J. and Weibel, F. P. (2012), Sensory, yield and quality differences between organically and conventionally grown winter wheat. J. Sci. Food Agric., 92: 2819–2825. doi: 10.1002/jsfa.5784
- Issue published online: 17 OCT 2012
- Article first published online: 3 AUG 2012
- Manuscript Accepted: 31 MAY 2012
- Manuscript Revised: 11 MAY 2012
- Manuscript Received: 20 JUL 2011
- organic farming;
- sensory differences;
- triangle test;
- wheat quality
BACKGROUND: Consumers expect organic produce to have higher environmental, health and sensory related qualities than conventional produce. In order to test sensory differences between bio-dynamically, bio-organically and conventionally grown winter wheat (Triticum aestivum L., cv. Runal), we performed double-blinded triangle tests with two panels on dry wholemeal flour from the harvest years 2006, 2007 and 2009 and from two field replicates of the ‘DOK’ long-term farming system comparison field trial near Basel, Switzerland. Yield and quality parameters were also assessed.
RESULTS: Significant farming system effects were found for yield (up to 42% reduction in the organic system), thousand kernel weight, hectolitre weight and crude protein content across the three years. In the triangle tests one out of 12 pair-wise farming system comparisons (PFSCs) on wholemeal flour made from the different wheat samples showed significant sensory differentiation (between bio-dynamically and conventionally grown wheat). When all data from the three harvest years and two panels were aggregated, a statistically significant effect (P = 0.045) of PFSCs on the number of correct answers became evident.
CONCLUSIONS: Although testing of dry wholemeal flour was very challenging for panellists, we were able to show that sensory differences between farming systems can occur. Copyright © 2012 Society of Chemical Industry