Staff Publications

Staff Publications

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    'Staff publications' is the digital repository of Wageningen University & Research

    'Staff publications' contains references to publications authored by Wageningen University staff from 1976 onward.

    Publications authored by the staff of the Research Institutes are available from 1995 onwards.

    Full text documents are added when available. The database is updated daily and currently holds about 240,000 items, of which 72,000 in open access.

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Record number 306365
Title A RP-HPLC method for the determination of tea catechins
Author(s) Khokhar, S.; Venema, D.; Hollman, P.C.H.; Dekker, M.; Jongen, W.M.F.
Source Cancer Letters 114 (1997)1-2. - ISSN 0304-3835 - p. 171 - 172.
Department(s) RIKILT
Publication type Refereed Article in a scientific journal
Publication year 1997
Abstract An HPLC method with gradient elution for the quantification of catechins ((−)-epigallocatechin (EGC), ( )-catechin (C), (−)-epicatechin (EC), (−)-epigallocatechingallate (EGCg) and (−)-epicatechingallate (ECg)) in tea was developed. The method was used to determine catechins in black tea, green tea and oolong tea. Sample preparation was simple because only filtration and adjustment of pH was required. The levels of catechins in different teas varied between <5 and 287 (EGC), 17 and 94 (EC), 18 and 408 (EGCg), and 8 and 85 mg/l (ECg). ( )-Catechin was not present in any of these teas.
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