RT info:eu-repo/semantics/article T1 Nuclear Magnetic Resonance Methodology for the Analysis of Regular and Non-Alcoholic Lager Beers A1 Sánchez Estébanez, Cristina A1 Ferrero Martín, Sergio A1 Álvarez González, Celedonio Manuel A1 Villafañe González, Fernando A1 Caballero Caballero, Isabel A1 Blanco Fuentes, Carlos Antonio K1 Lager beer K1 NMR K1 Non-alcoholic beer K1 Alcohol-free beer K1 Beer compounds AB The presence of seven main agents responsible for beer aroma and taste (n-propanol, isobutanol, 3-methylbutanol, tyrosol/tyrosine, ethyl acetate, isoamyl acetate, and acetaldehyde) is determined by different nuclear magnetic resonance (NMR) techniques (1H PRESAT, total correlation spectroscopy, heteronuclear single quantum correlation, and heteronuclear multiple bond correlation) in five regular and five low-alcoholic or alcohol-free beers. The new methodology includes the identification of the 1H and 13C NMR chemical shifts of the analytes by a standard addition method and the consequent identification of the compounds studied in regular and non-alcoholic beers. The chemical composition is different depending on whether the beer is regular or non-alcoholic, therefore affecting the organoleptic characteristics of each type of beer. PB Springer SN 1936-9751 YR 2018 FD 2018 LK http://uvadoc.uva.es/handle/10324/28718 UL http://uvadoc.uva.es/handle/10324/28718 LA eng NO Food Analyrical Methods, 2018, 11, 11–22 NO Producción Científica DS UVaDOC RD 07-ago-2024