Development of method of use of acid-resistant selective action enzyme preparations

Authors

DOI:

https://doi.org/10.15587/1729-4061.2015.46501

Keywords:

mash, enzyme preparations, fermentation of wort, wort, water-soluble carbohydrates, insoluble starch, concentration

Abstract

A lot of studies were conducted nowadays in distilling industry on biocatalysis and fermentation of wort from starch-containing raw material using selective action enzyme complexes, but operational parameters for hydrolysis of starch-containing raw material biopolymers are not sufficiently investigated at low pH of the substrate. On the market of enzyme preparations in Ukraine there are acid-resistant enzymes that enable hydrolysis of grain mashes in low pH environment. This article concentrates on determination of efficiency of use of acid-resistant enzyme preparations (EP) when producing worts from starch-containing raw material. The results of studies on content in wort of water-soluble carbohydrates and insoluble starch depending on pH, temperature of termofermentive processing (TFP) and enzyme activity stabilizer Ca2+ ions are demonstrated. In terms of bioconversion efficiency of raw grain material components and assurance of microbiological purity of intermediate products of alcohol production, optimum pH is 3.8 - 4.0, mash processing time is 90 minutes.

Author Biographies

Петро Леонідович Шиян, National University of Food Technologies 68 Vladimirskaya str., Kyiv, Ukraine, 01601

Doctor of technical sciences, professor

Professor of biotechnology fermentation and wine

Тетяна Омелянівна Мудрак, National University of Food Technologies 68 Vladimirskaya str., Kyiv, Ukraine, 01601

PhD, Associate Professor

Assistant professor of biotechnology fermentation and wine

Анатолій Михайлович Куц, National University of Food Technologies 68 Vladimirskaya str., Kyiv, Ukraine, 01601

PhD, Associate Professor

Assistant professor of biotechnology fermentation and wine

Ярослав Андрійович Боярчук, National University of Food Technologies 68 Vladimirskaya str., Kyiv, Ukraine, 01601

Postgraduate student

Department of biotechnology fermentation and wine

References

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Published

2015-08-18

How to Cite

Шиян, П. Л., Мудрак, Т. О., Куц, А. М., & Боярчук, Я. А. (2015). Development of method of use of acid-resistant selective action enzyme preparations. Eastern-European Journal of Enterprise Technologies, 4(6(76), 38–44. https://doi.org/10.15587/1729-4061.2015.46501

Issue

Section

Technology organic and inorganic substances