Research Institute of Organic Agriculture FiBL, Frick, Switzerland.
J Sci Food Agric. 2012 Nov;92(14):2819-25. doi: 10.1002/jsfa.5784. Epub 2012 Aug 3.
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.
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.
Although testing of dry wholemeal flour was very challenging for panellists, we were able to show that sensory differences between farming systems can occur.
消费者期望有机农产品在环境、健康和感官相关方面比传统农产品具有更高的品质。为了测试生物动力学、生物有机和常规种植的冬小麦（Triticum aestivum L.，cv. Runal）之间的感官差异，我们使用两个小组进行了双盲三角测试，测试对象是来自瑞士巴塞尔附近“DOK”长期农业系统比较试验场的 2006、2007 和 2009 年收获的全麦面粉和两个田间重复样本。同时还评估了产量和质量参数。
在三年的时间里，发现了产量（有机系统减少了 42%）、千粒重、每升重量和粗蛋白含量等方面存在显著的农业系统效应。在三角测试中，对来自不同小麦样本的全麦面粉进行的 12 对农业系统比较（PFSCs）中有一对显示出了显著的感官差异（生物动力学和常规种植的小麦之间）。当将三年的所有数据和两个小组汇总在一起时，PFSCs 对正确答案数量的影响具有统计学意义（P = 0.045）。
尽管对小组成员来说测试全麦面粉非常具有挑战性，但我们能够证明农业系统之间可能存在感官差异。
