Malting and Brewing with a High β-Glucan Barley
β-Glucans in barley can present process problems in brewing. Therefore, brewer's malts have been selected for low β-glucan content. This study examined high β-glucan Shonkin barley and, along with a low to moderate β-glucan control, conducted micro- and pilot-scale maltings of both hull-less an...
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Veröffentlicht in: | Food science & technology 1998-01, Vol.31 (1), p.20-26 |
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Format: | Artikel |
Sprache: | eng |
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Zusammenfassung: | β-Glucans in barley can present process problems in brewing. Therefore, brewer's malts have been selected for low β-glucan content. This study examined high β-glucan Shonkin barley and, along with a low to moderate β-glucan control, conducted micro- and pilot-scale maltings of both hull-less and covered versions of Shonkin. These malts were mashed and beers were brewed. Enzymatic methods were used to quantify β-glucan content in barley, malt, wort and beer. Germination time during malting did not significantly affect β-glucan content in the malt produced, and a 40 °C rest in the mash did not significantly affect β-glucan content in the wort but did increase wort viscosity. High β-glucan barley produced high β-glucan wort and beer regardless of treatment. Rice hulls were used to form a filter bed in the lauter tun when brewing with hull-less Shonkin malt and no problems were encountered with stuck runoff. Potential process problems in the brewhouse associated with malt made from hull-less high β-glucan barley cultivars can be overcome and a high soluble dietary fiber beer can be brewed. |
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ISSN: | 0023-6438 1096-1127 |
DOI: | 10.1006/fstl.1997.0285 |