Kvasny Prum. 2008; 54(9): 269-274 | DOI: 10.18832/kp2008015

Olfactometry and possibilities of its use for emission determination in breweries.Peer-reviewed article

Ronald KRAUS, Ladislav CHLÁDEK, Miroslav ČEŠPIVA, Miroslav PŘIKRYL
1 Výzkumný ústav zemědělské techniky v.v.i., Drnovská 507, 161 01 Praha 6-Ruzyně
2 Česká zemědělská univerzita v Praze, Technická fakulta, katedra technologických zařízení staveb, Kamýcká 129, 165 21 Praha 6-Suchdol

The olfactometry is in the brewery laboratory used for beer flavor changes determination during aging of beer, those tests are carried out by panel of experts or by PC connected with so called "electronic nose". The contemporary legislation in Czech Republic requires emission measurement during production in the agricultural and food industry. For this reason Czech university of life sciences, Engineering faculty, Department of technological Equipments of Buildings in Prague in collaboration with Research institute of agricultural engineering v.v.i. in Prague installed equipment - Olfactometer, used for threshold values determination of emissions generated in agricultural and food industry by selected trained experts. This article presents first results of measurements of emissions generated during mashing process at pilot Tutorial and research Brewery of Czech University of Life Sciences Prague, further were measured samples threshold values of fresh crashed malt of hops and earned yeast after fermentation process. The main use of this olfactometer is due to contemporary legislative in Czech Republic determination of emissions, taken under different weather conditions in neighborhood of selected brewery.The olfactometry is in the brewery laboratory used for beer flavor changes determination during aging of beer, those tests are carried out by panel of experts or by PC connected with so called "electronic nose". The contemporary legislation in Czech Republic requires emission measurement during production in the agricultural and food industry. For this reason Czech university of life sciences, Engineering faculty, Department of technological Equipments of Buildings in Prague in collaboration with Research institute of agricultural engineering v.v.i. in Prague installed equipment - Olfactometer, used for threshold values determination of emissions generated in agricultural and food industry by selected trained experts. This article presents first results of measurements of emissions generated during mashing process at pilot Tutorial and research Brewery of Czech University of Life Sciences Prague, further were measured samples threshold values of fresh crashed malt of hops and earned yeast after fermentation process. The main use of this olfactometer is due to contemporary legislative in Czech Republic determination of emissions, taken under different weather conditions in neighborhood of selected brewery.

Keywords: olfactometry, brewing industry, emissions

Published: September 1, 2008 

References

  1. Pokorný, J., Valentová, H., Panovská, Z.: Senzorická analýza potravin. Skripta VŠCHT Praha, 1999. ISBN 80-7080-329-0.
  2. Furusha, S., Kobayashi, N., Nakae, N., Takashio, M., Tamaki, T., Shinotsuka: A developed descriptive sensory tests reveals beer flavor changes during storage. Poster presented at he MBAA 111th Anniversary Convention, Minneapolis, Minnesota, September 1996, published in: Tech. Q. Master. Brew. Assoc. Am. 36, 1999, 163-166.
  3. Hulse, C.J., Forgan, J.:The development of a Flavour ProfileTaste Testing form and Computer Database Program. Proceedings from EBC Congress.
  4. Mawateri, M., Nagashima, Y., Takako, A., Hirota, T., Yamada, M.: Sensory characterization of Beer flavor Using Cluster Analysis. J. Am. Soc. Brew. Chem. 49, 1991, 59-64. Go to original source...
  5. Daems, V., Delvaux.: Multivariate Analysis of descriptive sensory data on 40 commercial beers. Food Quality and Preference 8, 1997, 373-380. Go to original source...
  6. Burke, S., Spooner, J. R., Hegarfty, P. K.: Sensory Testing of beers: an inter-laboratory sensory trial. J. Inst. Brew. 103, 1997, 15-19. Go to original source...
  7. Narziß, L.: Beer taste and how it is influenced by raw materials and technological factors. Brauwelt International, 1998/I, 14-25.
  8. ČSN Norma EN 13 725.
  9. Vyhláška Ministerstva životního prostředí ČR č. 356/2002 Sb.
  10. Nařízení vlády České republiky č. 353/2002.
  11. Češpiva, M., Kraus, R.: Protokol o měření pachových látek. Školní minipivovar Suchdol, Výzkumný ústav zemědělské techniky v.v.i. Praha, 2008.

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