Composition of quince (Cydonia oblonga Miller) seeds: phenolics, organic acids and free amino acids.
Phenolic compounds, organic acids and free amino acids of quince seeds were determined by HPLC/DAD, HPLC/UV and GC/FID, respectively. Quince seeds presented a phenolic profile composed of 3-O-caffeoylquinic, 4-O-caffeoylquinic, 5-O-caffeoylquinic and 3,5-dicaffeoylquinic acids, lucenin-2, vicenin-2, stellarin-2, isoschaftoside, schaftoside, 6-C-pentosyl-8-C-glucosyl chrysoeriol and 6-C-glucosyl-8-C-pentosyl chrysoeriol. Six identified organic acids constituted the organic acid profile of quince seeds: citric, ascorbic, malic, quinic, shikimic and fumaric acids. The free amino acid profile was composed of 21 identified free amino acids and the three most abundant were glutamic and aspartic acids and asparagine.
Silva
Branca M
BM
Servico de Farmacognosia, Faculdade de Farmácia, Universidade do Porto, R. Aníbal Cunha, 4050-047 Porto, Portugal.
Andrade
Paula B
PB
Ferreres
Federico
F
Seabra
Rosa M
RM
Oliveira
M Beatriz P P
MB
Ferreira
Margarida A
MA
D000143:Acids / Q000737:chemistry / Q000302:isolation & purification; D000596:Amino Acids / Q000737:chemistry* / Q000302:isolation & purification; D002849:Chromatography, Gas; D002851:Chromatography, High Pressure Liquid; D010636:Phenols / Q000737:chemistry* / Q000302:isolation & purification*; D027824:Rosaceae / Q000737:chemistry*; D012639:Seeds / Q000737:chemistry
D000143:Acids; D000596:Amino Acids; D010636:Phenols