Zusammenfassung
Es wurde die Kinetik des pH-abhängigen Curcumin-Abbaus untersucht. Eine Darstellung der Geschwindigkeitskonstante gegen die pH-Werte liefert die pKa-Werte des sauren Protonen. Diese Kurve zeigt aber gleichzeitig die Komplexität des Curcumin-Abbaus an.
Summary
The kinetics of the pH-dependant degradation of curcumin has been investigated. A plot of the rate constant against pH indicates the pKa values of the acid protons. The graph also indicates the complexity of the curcumin degradation.
References
Shankaracharaja NB (1974) Indian Spices 10:7
Turmeric, Curcumin (1975) WHO Food Additives Series No. 6
Govindarajan VS (1980) CRC Cr Rev Food Sci Nutr 12:199
Tønnesen HH, Karlsen J, Mostad A (1982) Acta Chem Scand B36:475
Leshik RR (1981) Eur Pat Appl EP 37:204 (Cl. A. 23L1/275)
Tønnesen HH, Karlsen J (1985) Z Lebensm Unters Forsch (in press)
Tønnesen HH, Karlsen J (1983) J Chromatogr 259:367
Pabon HJJ (1964) Recueil 83:379
Dyrssen DW, Novikov YP, Uppström LR (1972) Anal Chim Acta 60:139
Connors KA, Amidon GL, Kennon L (1979) In: Chemical stability of pharmaceuticals. John Wiley & Sons, New York
Author information
Authors and Affiliations
Rights and permissions
About this article
Cite this article
Tønnesen, H.H., Karlsen, J. Studies on curcumin and curcuminoids. Z Lebensm Unters Forch 180, 402–404 (1985). https://doi.org/10.1007/BF01027775
Received:
Issue Date:
DOI: https://doi.org/10.1007/BF01027775