C - Chemistry – Metallurgy – 12 – P
Patent
C - Chemistry, Metallurgy
12
P
195/138
C12P 19/14 (2006.01) C12P 19/16 (2006.01) C12P 19/20 (2006.01) C13K 1/06 (2006.01)
Patent
CA 1211398
Abstract For treating starch or starch-containing raw materials, the starting material is subjected to a mechanical treatment, noting that the fraction rich in starch is, after having been wetted, thermally degraded by applying high temperatures, for example by applying saturated steam at 110 to 130°C. The thermally degraded starch fraction is cooled down to saccharification tempera- ture and saccharified by adding enzymes. For obtaining a higher reaction speed in the subsequent fermentation stage and for better energy utilization, the saccharified dispersion is cooled down to fermentation temperature or a slightly higher tempera- ture by dilution and the undissolved solid matter is separated, optionally after a flocculating stage, prior to the fermentation stage. This additional separation of solid matter immediately prior to the fermentation stage at temperatures exceeding the fermentation temperature or being already said fermentation temperature provides the possibility to immediately obtain a substrate of low con- tent in solid matter, in which substrate the fermentation can more rapidly proceed.
445187
Cvitas Vilim
Faltejsek Karl
Hanke Reinhart
Treso Bertalan
Marks & Clerk
Voest - Alpine Aktiengesellschaft
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