Optimised quantification of the antiyeast activity of different barley malts towards a lager brewing yeast strain

Food Microbiology
Sandra N E van NieropMarina Rautenbach

Abstract

The brewing of beer involves two major biological systems, namely malted barley (malt) and yeast. Both malt and yeast show natural variation and assessing the impact of differing malts on yeast performance is important in the optimisation of the brewing process. Currently, the brewing industry uses well-established tests to assess malt quality, but these frequently fail to predict malt-associated problem fermentations, such as incomplete fermentations, premature yeast flocculation (PYF) and gushing of the final beer product. Antimicrobial compounds, and in particular antiyeast compounds in malt, may be one of the unknown and unmeasured malt factors leading to problem fermentations. In this study, the adaptation of antimicrobial assays for the determination of antiyeast activity in malt is described. Our adapted assay was able to detect differing antiyeast activities in nine malt samples. For this sample set, malts associated with PYF during fermentation and gushing activity in beer showed high antiyeast activity. Both PYF and gushing are malt quality issues associated with fungal infection of barley in the field which may result in elevated antimicrobial activity in the barley grain. Also, two more malts that passed the normal ...Continue Reading

References

Dec 1, 1979·Journal of Clinical Microbiology·A L BarryR W Hawkinson
Jun 1, 1991·Journal of Clinical Microbiology·A Espinel-IngroffS Shadomy
Mar 21, 1991·Journal of Immunological Methods·R I LehrerP Eisenhauer
May 29, 1987·Biochimica Et Biophysica Acta·T KatsuU Nagai
Oct 1, 1989·Journal of Clinical Microbiology·C Eng, P Valenstein
Feb 19, 1986·Biochimica Et Biophysica Acta·W K Roberts, C P Selitrennikoff
Feb 1, 1995·Trends in Microbiology·F García-OlmedoM Moreno
Oct 1, 1994·Plant Molecular Biology·D E Florack, W J Stiekema
Dec 1, 1993·The Plant Journal : for Cell and Molecular Biology·A Molina, F García-Olmedo
Jun 21, 1996·The Journal of Biological Chemistry·K ThevissenW F Broekaert
May 20, 1999·Biopolymers·F García-OlmedoP Rodríguez-Palenzuéla
Dec 3, 1999·Applied and Environmental Microbiology·K ThevissenW F Broekaert
Aug 10, 2000·Proceedings of the National Academy of Sciences of the United States of America·K ThevissenW F Broekaert
Oct 6, 2000·Journal of Microbiological Methods·E A du Toit, M Rautenbach
Jan 5, 2002·Journal of Microbiological Methods·Sally N JewellJoseph O Falkinham
Apr 2, 2002·Advances in Experimental Medicine and Biology·Charlene E Wolf-Hall, Paul B Schwarz
Apr 3, 2002·Zeitschrift Für Naturforschung. C, a Journal of Biosciences·Susanne Hippeli, Erich F Elstner
Mar 5, 2003·Bioorganic & Medicinal Chemistry·Isao KuboKen ichi Fujita
Sep 6, 2003·Journal of Clinical Microbiology·Tracy J WetterJim E Cutler
Jan 1, 1960·Scandinavian Journal of Clinical and Laboratory Investigation·H ERICSSON
Jun 1, 1996·Annual Review of Plant Physiology and Plant Molecular Biology·Jean-Claude Kader
Oct 30, 2004·Yeast·James A Barnett
Nov 1, 1974·Antimicrobial Agents and Chemotherapy·D Raahave
Jun 30, 2005·Proteomics·Ludivine PerrocheauDidier Marion
Aug 9, 2005·The International Journal of Biochemistry & Cell Biology·Patrícia B Pelegrini, Octávio L Franco
Feb 1, 2007·Journal of Agricultural and Food Chemistry·Luís F GuidoAquiles A Barros
Aug 31, 2007·International Journal of Food Microbiology·Charlene E Wolf-Hall

❮ Previous
Next ❯

Citations

Feb 7, 2012·Journal of Industrial Microbiology & Biotechnology·Apostolos G PanteloglouDavid J Cook
Aug 29, 2012·Journal of Industrial Microbiology & Biotechnology·Mandeep KaurDavid E Evans

❮ Previous
Next ❯

Related Concepts

Trending Feeds

COVID-19

Coronaviruses encompass a large family of viruses that cause the common cold as well as more serious diseases, such as the ongoing outbreak of coronavirus disease 2019 (COVID-19; formally known as 2019-nCoV). Coronaviruses can spread from animals to humans; symptoms include fever, cough, shortness of breath, and breathing difficulties; in more severe cases, infection can lead to death. This feed covers recent research on COVID-19.

Blastomycosis

Blastomycosis fungal infections spread through inhaling Blastomyces dermatitidis spores. Discover the latest research on blastomycosis fungal infections here.

Nuclear Pore Complex in ALS/FTD

Alterations in nucleocytoplasmic transport, controlled by the nuclear pore complex, may be involved in the pathomechanism underlying multiple neurodegenerative diseases including Amyotrophic Lateral Sclerosis and Frontotemporal Dementia. Here is the latest research on the nuclear pore complex in ALS and FTD.

Applications of Molecular Barcoding

The concept of molecular barcoding is that each original DNA or RNA molecule is attached to a unique sequence barcode. Sequence reads having different barcodes represent different original molecules, while sequence reads having the same barcode are results of PCR duplication from one original molecule. Discover the latest research on molecular barcoding here.

Chronic Fatigue Syndrome

Chronic fatigue syndrome is a disease characterized by unexplained disabling fatigue; the pathology of which is incompletely understood. Discover the latest research on chronic fatigue syndrome here.

Evolution of Pluripotency

Pluripotency refers to the ability of a cell to develop into three primary germ cell layers of the embryo. This feed focuses on the mechanisms that underlie the evolution of pluripotency. Here is the latest research.

Position Effect Variegation

Position Effect Variagation occurs when a gene is inactivated due to its positioning near heterochromatic regions within a chromosome. Discover the latest research on Position Effect Variagation here.

STING Receptor Agonists

Stimulator of IFN genes (STING) are a group of transmembrane proteins that are involved in the induction of type I interferon that is important in the innate immune response. The stimulation of STING has been an active area of research in the treatment of cancer and infectious diseases. Here is the latest research on STING receptor agonists.

Microbicide

Microbicides are products that can be applied to vaginal or rectal mucosal surfaces with the goal of preventing, or at least significantly reducing, the transmission of sexually transmitted infections. Here is the latest research on microbicides.

Related Papers

Annual Review of Plant Physiology and Plant Molecular Biology
Jean-Claude Kader
Bioscience, Biotechnology, and Biochemistry
H YamagishiY Ohya
© 2022 Meta ULC. All rights reserved