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Assessment of the prediction power of forced ageing methodology on lager beer aldehyde evolution during maritime transportation
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Orientador(es)
Resumo(s)
The globalisation of the beer market forces brewers to have methodologies that rapidly
evaluate the evolution of beer flavour stability. Commonly used forced ageing methods have
limitations since temperature and transportation conditions (temperature, vibrations, long-distance
travel, and other factors) impact beer quality. This study assessed the prediction power of a forced
ageing methodology on the evolution of aldehydes during maritime transportation across four sample
groups (maritime transport, storage simulation, and three ageing periods: 7, 21, and 28 days at 37 ◦C),
which differed in their bottle-opening system (either crown cap or ring pull cap). The results revealed
that forced ageing up to 28 days could estimate the evolution of phenylacetaldehyde, 3-methylbutanal,
2-methylpropanal, and hexanal during maritime transport. In contrast, the benzaldehyde content
was consistently underestimated, on average, 0.8 times lower. In general, the ageing conditions
significantly favoured the formation or liberation from a bound state, up to 2.2 times higher, of
trans-2-nonenal, acetaldehyde, and 5-hydroximethylfurfural in comparison to the levels registered on
exportation simulation beers. Moreover, forced-aged beers with ring pull caps developed quantifiable
levels of nonanal and increased phenylacetaldehyde, benzaldehyde, and acetaldehyde content over
time. Moreover, thermal stress induced a continuous increase in the extent of beer staling, up to seven
times higher, in most samples.
Descrição
Palavras-chave
Off-flavours Accelerated ageing Beer exportation Thermal impact Temperature Vibrations . Faculdade de Ciências Exatas e da Engenharia
Contexto Educativo
Citação
Aguiar, D.; Pereira, A.C.; Marques, J.C. Assessment of the Prediction Power of Forced Ageing Methodology on Lager Beer Aldehyde Evolution during Maritime Transportation. Molecules 2023, 28, 4201. https://doi.org/10.3390/ molecules28104201
Editora
MDPI