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  • 1
    Electronic Resource
    Electronic Resource
    Weinheim : Wiley-Blackwell
    Liebigs Annalen 1984 (1984), S. 1319-1331 
    ISSN: 0170-2041
    Keywords: Chemistry ; Organic Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Description / Table of Contents: Piperine - an Example of Individually Different (Polymorph) Metalbolism of an Omnipresent Nutrition ComponentSearching for the origin of components disturbing human urinary steroid profiles, two previously unknown compounds were detected: 5-(3,4-dihydroxyphenyl)valeric acid piperidide (17) and its in position 4 of the piperidine ring hydroxyxlated derivative 18. If nutrition free of pepper is consumed, these peaks disappear in the profiles, if piperine (21) is consumed the peaks appear again. Approximately 15 percent of the tested persons are not able to produce these metabolites. They excrete in their urine 5-(3,4-dihydroxyphenyl)-2,4-pentadienoic acid piperidide (22) if they consume pepper. Such an individually different metabolism of a common and nearly omnipresent nutrition component was previously not known to our knowledge.
    Notes: Auf der Suche nach der Herkunft von Störkomponenten in humanen Harn-Steroid-Profilen fanden wir zwei bisher unbekannte Verbindungen: 5-(3,4-Dihydroxyphenyl)valeriansäure-piperidid (17) und sein in Stellung 4 des Piperidinringes hydroxyliertes Derivat 18. Wird pfefferfreie Nahrung eingenommen, verschwinden diese Peaks in den Profilen, bei Einnahme von Piperin (21) treten sie wieder auf. Etwa 15% der untersuchten Personen sind nicht in der Lage, 17 und 18 zu bilden. Sie scheiden im Harn bei Pfefferkonsum 5-(3,4-Dihydroxyphenyl)-2,4-pentadiensäure-piperidid (22) aus. Eine derartige individuell unterschiedliche (polymorphe) Metabolisierung einer nahezu allgegenwärtigen Nahrungskomponente wurde unseres Wissens bisher noch nicht gefunden.
    Additional Material: 5 Ill.
    Type of Medium: Electronic Resource
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