Kvasny Prum. 1980; 26(5): 104-109 | DOI: 10.18832/kp1980017

Glucoamylase based on Endomycospis bispora increases yields of crude alcohol.Peer-reviewed article

A. TÄUFEL, H. RUTTLOFF, V. JAROVENKO, P. LIETZ, B. USTINNIKOV, P. STEFFEN

In distilleries producing grain alcohol traditional kilned malt, used to split up starch-containing raw materials, is now frequently replaced with microbial enzymatic preparations. Beside α-amylase very important is also glucoamylase, because it can split-up even α-1,6 glucosidous bonds of limit dextrines and increases thus the proportion of fermentable sugars. Substrates containing stillage are used for submerged cultivation of Aspergillus batatoe and Endomycopsis bispora the sequence of further operations being as follows. The mixture of non-filtrated media used to cultivate the two mentioned microorganisms is added to starch-containing crude mash to ferment it. The fermentation process can be accelerated by saccharifying the mash with higher glucoamylase additives. By optimizing the concentration of glucoamylase and duration of fermentation the yields of alcohol can be increased by 1-1,5 %. The outlined technology has been developed in a close cooperation by experts of two countries and is already applied with outstanding results inUSSR.
(In Czech, English summary only)

Keywords: Endomycospis bispora, glucocamylase, kilning, malt

Published: May 1, 1980