Quantitative changes in phenolic content during physiological development of the olive (Olea europaea) cultivar Hardy's Mammoth.
This investigation was designed to characterize phenolic metabolism of the olive cultivar, Hardy's Mammoth, by examining its constitutive tissues. The phenolic profiles of pulp, seed, stone, and new and old season leaves were monitored over two fruiting seasons, to investigate possible relationships between tissues and phenol content and to determine the impact of alternate fruit bearing. No major qualitative differences in phenolic composition were found between the various tissues; however, distinct differences between the tissues with respect to quantifiable phenols were established. Relationships between 2-(3,4-dihydroxyphenyl)ethyl (3E,4E)-4-formyl-3-(2-oxoethyl)hex-4-enoate ester, oleuropein, and hydroxytyrosol in pulp and leaf were identified and found to be related to alternate bearing. Concentrations of 5-caffeoylquinic acid in old season leaves differed dramatically between seasons, confirming earlier studies.
Ryan
Danielle
D
School of Science and Technology and Farrer Centre, Charles Sturt University, Locked Bag 588, Wagga Wagga 2678, Australia.
Prenzler
Paul D
PD
Lavee
Shimon
S
Antolovich
Michael
M
Robards
Kevin
K
D002851:Chromatography, High Pressure Liquid; D031658:Olea / Q000737:chemistry* / Q000254:growth & development; D010636:Phenols / Q000032:analysis* / Q000145:classification; D010936:Plant Extracts / Q000737:chemistry*; D018515:Plant Leaves / Q000737:chemistry; D012639:Seeds / Q000737:chemistry
D010636:Phenols; D010936:Plant Extracts