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Sorting wheat and malting barley into high quality raw materials for the cereal industry

Development of a grain sorting technique for the cereal processing industry which could ensure the production of high quality flour for baking bread and biscuits and high quality malt for brewing.

The overall aim of the project is to develop a technology for sorting of granular materials according to the structural/chemical/sensoric/functional properties of the separate granulars. Such granular materials could for example be cereals, coffee beans, granulated pharmaceuticals, granulated plastics, synthetic materials, etc. The variation in quality from one granular to another, especially in biological material, is much greater than one normally anticipates. For example, the variation in protein between kernels in a batch of bread wheat is surprisingly high, and a variation from 8% to 16% is normal. Kernels with low protein content are totally unsuitable for bread making, but would, if they could be sorted, be highly suitable for the production of biscuits. Likewise, kernels with high protein content are much more suitable for the production of extra strong baking flour or even grits for pasta production, instead of flour for normal bread making. Generally, the same heterogeneity in protein content is found between kernels from a single spike, which means that neither through precision agriculture nor through selective harvest will it be possible to eliminate or utilize this heterogeneity. Homogenous high quality raw materials can only be produced by use of a single seed sorting technology. BOMILL AB has invented such a technique, the TriQ technology, which allows sorting of kernels into 3-5 homogenous fractions of high quality. The invention is of epoch-making importance. Through milling of sorted wheat fractions instead of unsorted traditional raw wheat, it is not only possible to produce flours of improved quality, but also to improve the quality of the end products (bread, biscuits and pasta), as well as the capacity of the production lines for these end products. In other cereals, there are variations in other qualities or properties which have a large impact on the quality and production price of the final products. In the malting industry for example, a sorting of the raw barley according to malting (germination) time would allow the maltster to malt slow and fast germinating kernels separately, instead of malting them in a mixture, and thereby be able to increase the capacity in the malt house by 30%. In fact, the technology can be applied to any organic (carbon based) material, for example: - Coffee beans can be sorted according to their aroma - Beef could be sorted according to tenderness - Pharmaceutical pills could be controlled according to their content of active component - Sowing seeds could be sorted according to their germination capacity (vigour) - Soya beans could be sorted according to their protein content prior to production of white flakes and protein isolates - Corn could be sorted according to their popping properties. Keywords: sorting, single seed, quality.
Acronym: 
TRIQ SORTING
Project ID: 
3 176
Start date: 
20-06-2003
Project Duration: 
20months
Project costs: 
510 000.00€
Technological Area: 
Detection and Analysis methods
Market Area: 

Raising the productivity and competitiveness of European businesses through technology. Boosting national economies on the international market, and strengthening the basis for sustainable prosperity and employment.