LC-DAD-ESI/MS(n) determination of direct condensation flavanol-anthocyanin adducts in pressure extracted pomegranate (Punica granatum L.) juice.

Summary

Pomegranate (Punica granatum L.) juice, obtained by pressure extraction of the whole fruit, has been analyzed for its flavanol-anthocyanin adduct content using reversed-phase liquid chromatography with diode array detection, coupled to mass spectrometry (ion trap) with electrospray ionization (HPLC-DAD-ESI/MS(n)), operating in positive ion mode. A total of 35 dimers have been detected, consisting of mono- and disubstituted hexoside derivatives of the adducts between the flavan-3-ols (epi)gallocatechin, (epi)catechin and (epi)afzelechin and the anthocyanidins delphinidin, cyanidin and pelargonidin. In addition, evidence is given for the presence of additional anthocyanin-flavanol adducts in this juice.

Affiliation

Instituto de AgroquiÌ�mica y TecnologiÌ�a de Alimentos-CSIC, Avd AgustiÌ�n Escardino, 7-Parque CientiÌ�fico, 46980 Paterna, Valencia, Spain. jsendra@iata.csic.es

Journal Details

Name: Journal of agricultural and food chemistry
ISSN: 1520-5118
Pages: 10560-7

MESH Definitions

Hypertension

Persistently high systemic arterial BLOOD PRESSURE. Based on multiple readings (BLOOD PRESSURE DETERMINATION), hypertension is currently defined as when SYSTOLIC PRESSURE is consistently greater than 140 mm Hg or when DIASTOLIC PRESSURE is consistently 90 mm Hg or more.

Blood Pressure Determination

Techniques for measuring blood pressure.

Ophthalmodynamometry

Measurement of the blood pressure of the retinal vessels. It is used also for the determination of the near point of convergence (CONVERGENCE, OCULAR). (From Cline, et al., Dictionary of Visual Science, 4th ed)

Insurance Claim Review

Review of claims by insurance companies to determine liability and amount of payment for various services. The review may also include determination of eligibility of the claimant or beneficiary or of the provider of the benefit; determination that the benefit is covered or not payable under another policy; or determination that the service was necessary and of reasonable cost and quality.

Venous Pressure

The blood pressure in the VEINS. It is usually measured to assess the filling PRESSURE to the HEART VENTRICLE.

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