title: 2-Furoylmethyl amino acids and hydroxymethylfurfural as indicators of honey quality.
abstract: Determination of changes in 2-furoylmethyl amino acids and hydroxymethylfurfural during the storage of four honey samples at 25 and 35 degrees C during 12 months was achieved to assess the potential use of both parameters, singly or in combination, as quality indicators. 2-Furoylmethyl amino acids increased during storage at both temperatures, whereas hydroxymethylfurfural only presented slight variations during storage at 25 degrees C but increased noticeably at 35 degrees C. The study of 2-furoylmethyl amino acids in 49 commercial honeys revealed that 2-furoylmethyl lysine (furosine) was present in all samples, whereas 2-furoylmethyl derivatives of arginine, GABA, and proline were only present in seven samples. Hydroxymethylfurfural can be considered as a good indicator of heat treatments applied to honey samples, whereas 2-furoylmethyl amino acids can be used as suitable markers of the storage period. The use of both parameters can be useful to detect adulteration with invert syrups, excessive heat treatments, or prolonged storage of honey samples.
authors.affiliation: Instituto de Fermentaciones Industriales (C.S.I.C.) C/Juan de la Cierva, 3 28006 Madrid, Spain.
authors.forename: María Luz
authors.initials: ML
authors.lastname: Sanz
authors.forename: María Dolores
authors.initials: MD
authors.lastname: del Castillo
authors.forename: Nieves
authors.initials: N
authors.lastname: Corzo
authors.forename: Agustín
authors.initials: A
authors.lastname: Olano
mesh_terms: D000596:Amino Acids / Q000032:analysis; D005519:Food Preservation; D005662:Furaldehyde / Q000031:analogs & derivatives* / Q000032:analysis*; D006722:Honey / Q000032:analysis*; D006358:Hot Temperature; D008239:Lysine / Q000031:analogs & derivatives* / Q000032:analysis*; D011786:Quality Control; D013696:Temperature
chemical_list: D000596:Amino Acids; C018948:furosine; C008046:5-hydroxymethylfurfural; D005662:Furaldehyde; D008239:Lysine