Malting grains for brewing and distilling has due to its energy and water intensive production processes a very high impact of the carbon footprint of the final product. As Bühler follows an ambitious target of reducing the malting industries carbon footprint up to 50%, Bühler invented the Stellar technology for bioprocessing and specifically for malting.
The Stellar principle is based on fundamental research between ETH Zurich and Bühler AG and has been developed in close scientific collaboration over the last 7 years. The technology is based on nanosecond pulsed electric fields (nsPEF), which unlike conventional pulsed electric field applications, only facilitate mass transfer of ions and small molecular substances. When applied accurately, nsPEF enables non-invasive process optimization without altering the target organism. Research shows that nsPEF can improve cell differentiation of cells, increase biomass yields, and improve by this for example germination rates in malt.
In large industrial scale applications, the germination rate of malt could be increased up to 20% by enforcing intracellular mass transfer of ions without chemical changes on the raw material.
The treatment of the material is realized either during the steeping process or during the transfer to the germination vessel.
This presentation will give you detailed insights on the application itself and on the improvement of biochemical processes during the germination process, showing you sound results of the trails form lab to industrial scale.