Proteolytic activities and profiles as useful traits to select barley cultivars for beer production
Por:
Najera-Torres, Edgar, Angelica Bernal-Gracida, Lilia, Gonzalez-Solis, Ariadna, Schulte-Sasse, Mariana, Castanon-Suarez, Claudio, Andres Juarez-Diaz, Javier, Cruz-Zamora, Yuridia, Vazquez-Santana, Sonia, Figueroa, Mario, Cruz-Garcia, Felipe
Publicada:
1 may 2022
Resumen:
Barley malting depends on hydrolytic enzymes that degrade storage
macromolecules. Identifying barley cultivars with proteolytic activity
that guarantees appropriate foaming, flavor, and aroma in the beer is of
great importance. In this work, the proteolytic activity and profiles of
brewing malt from Mexican barley cultivars were analyzed. Data showed
that Cys- (at 50 degrees C) and Ser-proteases (at 70 degrees C) are the
major contributors to proteolytic activity during mashing. Essential
amino acids, necessary for fermentation and production of good flavor
and aroma in beer, were detected at the end of mashing. According to our
results, Mexican cultivar HV2005-19 exhibits similar proteolytic
activities as those from cultivar Metcalfe, which is one of the most
utilized for the brewing industry. Moreover, we propose Cys- and
Ser-proteases as biochemical markers during mashing at 50 and 70 degrees
C, respectively, to select barley cultivars for beer production.
Practical applications Proteolytic activity, which depends on activation
and de novo synthesis of proteases in the aleurone layer of barley
seeds, is crucial in beer production. Identifying new barley varieties
that have optimal proteolytic activities is of great interest for
genetic improvement programs. In this study, we propose the variety
HV2005-19 as a genotype with Cys- and Ser-proteases activity similar to
that from Metcalfe, which is a top variety in the brewing industry.
Filiaciones:
Najera-Torres, Edgar:
Univ Nacl Autonoma Mexico, Fac Quim, Dept Bioquim, Ciudad De Mexico, Mexico
Angelica Bernal-Gracida, Lilia:
Univ Nacl Autonoma Mexico, Fac Quim, Dept Bioquim, Ciudad De Mexico, Mexico
Gonzalez-Solis, Ariadna:
Univ Nacl Autonoma Mexico, Fac Quim, Dept Bioquim, Ciudad De Mexico, Mexico
Schulte-Sasse, Mariana:
Univ Nacl Autonoma Mexico, Fac Quim, Dept Bioquim, Ciudad De Mexico, Mexico
Castanon-Suarez, Claudio:
Univ Nacl Autonoma Mexico, Fac Quim, Dept Bioquim, Ciudad De Mexico, Mexico
Andres Juarez-Diaz, Javier:
Univ Nacl Autonoma Mexico, Fac Ciencias, Dept Biol Comparada, Ciudad De Mexico, Mexico
Cruz-Zamora, Yuridia:
Univ Nacl Autonoma Mexico, Fac Quim, Dept Bioquim, Ciudad De Mexico, Mexico
Vazquez-Santana, Sonia:
Univ Nacl Autonoma Mexico, Fac Ciencias, Dept Biol Comparada, Ciudad De Mexico, Mexico
Figueroa, Mario:
Univ Nacl Autonoma Mexico, Fac Quim, Dept Farm, Ciudad De Mexico, Mexico
Cruz-Garcia, Felipe:
Univ Nacl Autonoma Mexico, Fac Quim, Dept Bioquim, Ciudad De Mexico, Mexico
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