Wiazanie kofeiny z bialkami mleka w obecnosci azotanow [III] i [V]

• Autorzy: Pokorska-Lis G. , Wozniak J. , Oledzka R. , Kaczkowska K. , Szczepanik E.

Warianty tytułu

EN

Binding of caffeine with milk proteins in the presence of nitrates and nitrites

• Języki publikacji: PL

Abstrakty

PL

Na prostych układach in vitro zbadano wpływ azotanów (lll) i (V) lub ich mieszaniny na stopień wiązania kofeiny z białkami.

EN

The aim of the study was to investigate the influence of nitrates and nitrites on binding of caffeine with casein and milk proteins. The studies were conducted using a simple in vitro experimental dialysation model, in that the caffeine diffused through a semi-penetrable membrane. Changes in caffeine concentrations were determined spectrophotometricaly. Nitrates and nitrites were added to different reaction conditions containing caffeine, milk and casein in order to determinate their influence on interactions between caffeine and milk proteins. The interpretation of kinetics curves was made and the constants k were determined. In reacting conditions containing caffeine and casein or milk in different concentrations the binding between caffeine and these proteins were observed.

Słowa kluczowe

PL

substancje toksyczne; azotany; wiazanie kofeiny; bialka mleka; kofeina; kazeina; mleko

EN

toxic substance; nitrate; caffeine binding; milk protein; caffeine; casein; milk

• Wydawca: -
• Czasopismo: Bromatologia i Chemia Toksykologiczna
• Rocznik: 2002
• Tom: 35
• Numer: 3
• Opis fizyczny: s.223-230,rys.,tab.,bibliogr.

Twórcy

autor

Pokorska-Lis G.

• Akademia Medyczna w Warszawie, ul.Banacha 1, 02-097 Warszawa

autor

Wozniak J.

autor

Oledzka R.

autor

Kaczkowska K.

autor

Szczepanik E.