Taxonomic group: plant / Streptophyta
(Phylum: Streptophyta)
Organ / tissue: fruit skin
Publication DOI: 10.1016/S0925-5214(00)00116-2Journal NLM ID: 9884964Publisher: Amsterdam; New York: Elsevier
Correspondence: a.de.jager
fpo.agro.nl
Institutions: Fruit Research Station, Zetten, The Netherlands
Apples are important dietary sources of potentially healthy phenolics. In three successive seasons, the changes in concentrations of flavonoids and chlorogenic acid in the skin of two apple cultivars ‘Jonagold’ and ‘Elstar’ during and after regular (RS) and ultra low oxygen storage (ULO) at 1°C, were quantified by reversed-phase high performance liquid chromatography (RP-HPLC) with UV-VIS detector. There were no significant differences in the concentrations of flavonoids and chlorogenic acid between fruits stored under ULO and RS conditions. During storage of both ‘Jonagold’ (3, 6 and 8 months) and of ‘Elstar’ (2, 4 and 6 months), and during 1 or 2 weeks shelf life, the concentrations of cyanidin 3-galactoside and quercetin glycosides were relatively constant, while the concentrations of catechins, phloridzin and chlorogenic acid showed only minor changes. Exposing ‘Jonagold’ and ‘Elstar apples’ to white light during shelf life following storage increased the concentration of cyanidin 3-galactoside but not any of the other flavonoid classes. An explanation for this might be that the synthesis of different flavonoid classes may have different spectral sensitivity characteristics. It is concluded that flavonoids present in apples are stable and possibly not subject to net metabolic turnover during storage and shelf life.
phenolics, flavonoids, chlorogenic acid, storage condition, storage duration, quality
Structure type: monomer
Location inside paper: p. 19, Table 2
Trivial name: isoquercitrin
Compound class: saponin glycoside, glycoside, flavonoid glycoside, flavonol glycoside, flavone glycoside
Contained glycoepitopes: IEDB_142488,IEDB_146664,IEDB_983931,SB_192
Methods: UV, extraction, RP-HPLC, spectrophotometry
Related record ID(s): 64770, 64771, 64773, 64774, 64775, 64776, 64777
NCBI Taxonomy refs (TaxIDs): 3750Reference(s) to other database(s): CCSD:
49965, CBank-STR:953
Show glycosyltransferases
There is only one chemically distinct structure:
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