Comparison of α and β-acid isomerization in hops and beer using HPLC, confocal microscopy, spectrofluorimetry and chemical analysis of metabolites and essential oils in flowers of different hop cultivars produced in Brazil

Francisco Mateus Gomes do Nascimento; Maria Teresa Salles Trevisan; Manoel Lourenço Alves Neto; Robert Wyn Owen; Edy Sousa de Brito; Lorena Mara Alexandre e Silva; Késya Amanda Dantas Rocha; Carlos Lenz Cesar; Hernandes Faustino de Carvalho; Vitor Bianchin Pelegati; Sthefanny Alves da Silva; Samuel Pedro Dantas Marques