Study of the influence of brewing water on selected analytes in beer
Keywords:brewing water, homebrewing, B vitamins, organic acids, iso-Î±-acids
Brewing water is one of the basic raw materials for beer production and knowledge of its composition and pH is essential for the proper conduct of the entire brewing process. In this study, it was observed how the composition of water influences OG values, content of B vitamins, organic acids and iso-α-acids. For brewing, synthetic water was prepared by adding chemicals to deionized water. Models of hard (pH 8.47 ±0.08) and soft (pH 7.68 ±0.23) synthetic water were used for brewing pale bottom-fermented lager beers. Samples of wort, hopped wort, young beer and beer were collected during beer production. HPLC-DAD was used for B vitamins and iso-α-bitter acids quantification. Determination of organic acids was done by ion chromatography with conductivity detector. Obtained data were statistically processed with ANOVA (Analysis of Variance) and interval of confidence was set to 95%. According to the statistical analysis, water composition affects analytes content during beer production and in the final product. Hard water seemed to be a better extraction buffer and its composition (pH) positively affected some processes during brewing technology. One of them was obtaining higher OG values compared to soft water. The beer made from hard water also contained more B vitamins. Composition of brewing water had no influence neither on concentration of organic acids nor on iso-α-acids in conditions of homebrewing.
Basařová, G., Šavel, J., Basař, P., Lejsek, T.. 2010. Pivovarství: teorie a praxe výroby piva (Brewing: theory and practice of beer procudtion). 1st ed. Prague, Czech Republic : Publisher VŠCHT, 904 p. (In Czech). ISBN: 978-80-7080-734-7.
Briggs, D. E., Boulton, C. A., Brookes, P. A., Stevens, R. 2004. Brewing: Science and practice. England : Woodhead Publishing, 900 p. ISBN: 9781855734906. https://doi.org/10.1533/9781855739062
Briggs, D. E., Stevens, R., Young, T. W., Hough, J. S. 1981. Malting and brewing science. 2nd ed. New York, USA : Chapman and Hall, 194 p. ISBN: 978-0-412-16580-1.
Comrie, A. A. D. 1967. Brewing liquor. Journal of the institute of brewing, vol. 73, no. 4, p. 335-346. https://doi.org/10.1002/j.2050-0416.1967.tb03050.x
Coote, N., Kirsop, B. H. 1974. The content of some organic acids in beer and other fermented media. Journal of the Institute of Brewing, vol. 80, no. 5, p. 474-483. https://doi.org/10.1002/j.2050-0416.1974.tb06797.x
Eßlinger, H. M. 2009. Handbook of Brewing: Processes, Technology, Markets. 2nd ed. Weinheim, Germany : Wiley, 746 p. ISBN: 978-3-527-31674-8.
Ganbaatar, C., Kubáň, V., Kráčmar, S., Valášek, P., Fišera, M., Hoza, I. 2015. Liquid chromatographic determination of polyphenols in Czech beers during brewing proces. Potravinarstvo Slovak Journal of Food Sciences, vol. 9, no. 1, p. 24-30. https://doi.org/10.5219/421
Hucker, B., Wakeling, L., Vriesekoop, F. 2011. The Quantitative Analysis of Thiamin and Riboflavin and Their Respective Vitamers in Fermented Alcoholic Beverages. Journal of Agricultural and Food Chemistry, vol. 59, no. 23, p. 12278-12285. https://doi.org/10.1021/jf202647x
Hucker, B., Wakeling, L., Vriesekoop, F. 2016. Vitamins in brewing: presence and influence of thiamine and riboflavin on wort fermentation. Journal of the Institute of Brewing, vol. 122, no. 1, p. 126-137. https://doi.org/10.1002/jib.293
Kábelová-Ficová, H., Kráčmar, S., Gregor, T., Fišera, M., Golian, J., Kubáň, V., Šopík, T. 2017. Preparation of malts for production of special beers. Potravinarstvo Slovak Journal of Food Sciences, vol. 11, no. 1, p. 441-445. https://doi.org/10.5219/773
Kadlec, P. 2002. Technologie potravin II (Food Technology II), Praha : Vydavatelství VŠCHT, 236 p. (In Czech). ISBN: 80-7080-510-2.
Karbassi, F., Saboury, A. A. 2000. Thermodynamic studies on the interaction of calcium ions with alpha-amylase. Thermochimica Acta, vol. 362, no. 1-2, p. 121-129. https://doi.org/10.1016/S0040-6031(00)00579-7
Olšovská, J., Jurková, M., Čejka, P. 2012. Nové trendy v kapalinové chromatografii a jejich využití v analýze piva a pivovarských surovin: Část 2. Stanovení cis/trans- izomerů iso-α-hořkých kyselin v pivu metodou ultraúčinné kapalinové chromatografie (New Trends in Liquid Chromatography and their Application in Beer and Brewery Raw Materials Analysis: Part 2). Determination of cis/trans-isomers of iso-α–bitter acids in beer by ultra-efficient liquid chromatography (). Kvasný průmysl, vol. 58, no. 4, p. 94-99. (In Czech) https://doi.org/10.18832/kp2012010
Rudin, A. D. 1976. Brewing liquor and beer quality. Brewers' Guard, vol. 105, no. 12, p. 30.
Saboury, A. A., Ghasemi, S., Umar Dahot, M. 2005. Thermodynamic study of magnesium ion binding to alpha amylase. Indian Journal of Biochemistry & Biophysics, vol. 42, no. 5, p. 326-329. Available at: http://nopr.niscair.res.in/bitstream/123456789/3533/1/IJBB%2042(5)%20326-329.pdf
Sheraz, M. A., Hafeez Kazi, S., Ahmed, S., Anwar, Z., Ahmad, I. 2014. Photo, thermal and chemical degradation of riboflavin. Beilstein Journal of Organic Chemistry, vol. 10, no. 4, p. 1999-2012. https://doi.org/10.3762/bjoc.10.208
Smith, E. J., Davison, W., Hamilton-Taylor, J. 2002. Methods for preparing synthetic freshwaters. Water Research, vol. 36, no. 5, p. 1286-1296. https://doi.org/10.1016/S0043-1354(01)00341-4
South, J. B. 1996. Changes in organic acid levels during malting. Journal of the Institute of Brewing, vol. 102, no. 5, p. 161-166. https://doi.org/10.1002/j.2050-0416.1996.tb00904.x
Vontrobová, E., Kopecká, J., Rotková, G., Matoulková, D. 2017. Factors Influencing the Production of Sensory Active Substances in Brewer's and Wine Yeast. Kvasný Průmysl, vol. 63, no. 4, p. 173-189. https://doi.org/10.18832/kp201720
Walker, G. M. 1998. Yeast physiology and biotechnology. 2nd ed. New York : Wiley, 362 p. ISBN: 978-0-471-96446-9.
Whiting, G. C. 1976. Organic acid metabolism of yeasts during fermentation of alcoholic beverages. Journal of the Institute of Brewing, vol. 82, no. 2, p. 84-92. https://doi.org/10.1002/j.2050-0416.1976.tb03731.x
Zhang, Y., Jia, S., Zhang W. 2012. Predicting acetic acid content in the final beer using neural networks and support vector machine. Journal of the Institute of Brewing, vol. 118, no. 4, p. 361-367. https://doi.org/10.1002/jib.50
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