Effects of three Fusarium species on the quality of barley and malt

Tuija Sarlin (Corresponding Author), Arja Laitila, Anja Pekkarinen, Auli Haikara

Research output: Contribution to journalArticleScientificpeer-review

47 Citations (Scopus)

Abstract

n this study, field-grown barley was artificially infected during the heading stage with three Fusarium species, F. culmorum, F. graminearum, and F. poae. The objective was to investigate possible differences among Fusarium species in terms of how severely they affect the quality of barley under Finnish field conditions. Moreover, we studied the effects of heavy infection on corresponding malt quality. Field trials were carried out with two different barley cultivars at two experimental farms. Spike samples collected during the growing period were analyzed for Fusarium infection and moisture content. Total precipitation and temperature data were collected daily. In addition, the harvested barley samples were analyzed for overall microbial flora and for mycotoxins. The infection rate and the amount of mycotoxins produced in the barley samples differed among species. F. graminearum was found to have the most negative effects on barley quality in terms of the studied parameters. Samples were malted in laboratory scale. All three Fusarium species increased the gushing potential of malt. Heavy fungal infection increased the enzyme activities in malt resulting in darker wort color and increased soluble nitrogen and free amino nitrogen content. However, high Fusarium contamination reduced lautering performance.
Original languageEnglish
Pages (from-to)43 - 49
Number of pages7
JournalJournal of the American Society of Brewing Chemists
Volume63
Issue number2
DOIs
Publication statusPublished - 2005
MoE publication typeA1 Journal article-refereed

Fingerprint

malt
Fusarium
Hordeum
barley
Mycotoxins
infection
mycotoxins
Nitrogen
Fusariosis
Fusarium poae
sampling
amino nitrogen
Fusarium culmorum
Mycoses
demonstration farms
Fusarium graminearum
Infection
heading
nitrogen content
field experimentation

Keywords

  • Artificial inoculation, Field trials, Gushing, Malting, Mycotoxins

Cite this

Sarlin, Tuija ; Laitila, Arja ; Pekkarinen, Anja ; Haikara, Auli. / Effects of three Fusarium species on the quality of barley and malt. In: Journal of the American Society of Brewing Chemists. 2005 ; Vol. 63, No. 2. pp. 43 - 49.
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abstract = "n this study, field-grown barley was artificially infected during the heading stage with three Fusarium species, F. culmorum, F. graminearum, and F. poae. The objective was to investigate possible differences among Fusarium species in terms of how severely they affect the quality of barley under Finnish field conditions. Moreover, we studied the effects of heavy infection on corresponding malt quality. Field trials were carried out with two different barley cultivars at two experimental farms. Spike samples collected during the growing period were analyzed for Fusarium infection and moisture content. Total precipitation and temperature data were collected daily. In addition, the harvested barley samples were analyzed for overall microbial flora and for mycotoxins. The infection rate and the amount of mycotoxins produced in the barley samples differed among species. F. graminearum was found to have the most negative effects on barley quality in terms of the studied parameters. Samples were malted in laboratory scale. All three Fusarium species increased the gushing potential of malt. Heavy fungal infection increased the enzyme activities in malt resulting in darker wort color and increased soluble nitrogen and free amino nitrogen content. However, high Fusarium contamination reduced lautering performance.",
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Effects of three Fusarium species on the quality of barley and malt. / Sarlin, Tuija (Corresponding Author); Laitila, Arja; Pekkarinen, Anja; Haikara, Auli.

In: Journal of the American Society of Brewing Chemists, Vol. 63, No. 2, 2005, p. 43 - 49.

Research output: Contribution to journalArticleScientificpeer-review

TY - JOUR

T1 - Effects of three Fusarium species on the quality of barley and malt

AU - Sarlin, Tuija

AU - Laitila, Arja

AU - Pekkarinen, Anja

AU - Haikara, Auli

PY - 2005

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N2 - n this study, field-grown barley was artificially infected during the heading stage with three Fusarium species, F. culmorum, F. graminearum, and F. poae. The objective was to investigate possible differences among Fusarium species in terms of how severely they affect the quality of barley under Finnish field conditions. Moreover, we studied the effects of heavy infection on corresponding malt quality. Field trials were carried out with two different barley cultivars at two experimental farms. Spike samples collected during the growing period were analyzed for Fusarium infection and moisture content. Total precipitation and temperature data were collected daily. In addition, the harvested barley samples were analyzed for overall microbial flora and for mycotoxins. The infection rate and the amount of mycotoxins produced in the barley samples differed among species. F. graminearum was found to have the most negative effects on barley quality in terms of the studied parameters. Samples were malted in laboratory scale. All three Fusarium species increased the gushing potential of malt. Heavy fungal infection increased the enzyme activities in malt resulting in darker wort color and increased soluble nitrogen and free amino nitrogen content. However, high Fusarium contamination reduced lautering performance.

AB - n this study, field-grown barley was artificially infected during the heading stage with three Fusarium species, F. culmorum, F. graminearum, and F. poae. The objective was to investigate possible differences among Fusarium species in terms of how severely they affect the quality of barley under Finnish field conditions. Moreover, we studied the effects of heavy infection on corresponding malt quality. Field trials were carried out with two different barley cultivars at two experimental farms. Spike samples collected during the growing period were analyzed for Fusarium infection and moisture content. Total precipitation and temperature data were collected daily. In addition, the harvested barley samples were analyzed for overall microbial flora and for mycotoxins. The infection rate and the amount of mycotoxins produced in the barley samples differed among species. F. graminearum was found to have the most negative effects on barley quality in terms of the studied parameters. Samples were malted in laboratory scale. All three Fusarium species increased the gushing potential of malt. Heavy fungal infection increased the enzyme activities in malt resulting in darker wort color and increased soluble nitrogen and free amino nitrogen content. However, high Fusarium contamination reduced lautering performance.

KW - Artificial inoculation, Field trials, Gushing, Malting, Mycotoxins

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DO - 10.1094/ASBCJ-63-0043

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JO - Journal of the American Society of Brewing Chemists

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