Comprehensive Comparative Study of the Malting Qualities of Winter Hull-Less and Hulled Barley (2016–2019)
2021
Kristina Habschied | Alojzije Lalić | Vinko Krstanović | Krešimir Dvojković | Ivan Abičić | Gordana Šimić | Krešimir Mastanjević
This paper aimed to compare the quality indicators of hull-less (naked) barley malt with malt obtained from hulled barley, according to the recommended values for standard pale malt. Five domestic hull-less barley varieties (Osvit, Mandatar, GZ-184, Osk.8.26/1&ndash:14 and Osk.6.24/4&ndash:12) and five hulled (Barun, OsLukas, Vanessa, Casanova, and Maestro) barley varieties were malted according to the standard procedure. The results of starting barley quality indicators (hectolitre weight, protein, starch, 1000 kernel weight, first class grain) and of finished malts (malt moisture, extract, extract difference, friability, wort viscosity, soluble protein, Kolbach index, wort color, and wort pH) were then compared. The results indicate that the main problem of hull-less barley is the resistance to deeper modification of grain. This is expressed as lower water absorption during steeping, and lower friability. The intensification of the process of malting could be boosted with the extension of steeping time and decreased temperatures during germination. This should result with higher friability but other indicators of malt quality should also show better values.
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