Der Einsatz unkonventioneller Proteine fUr ErnrUrungszwecke ist i. a. eingeschrW durch deren ungiinstige funktionelk Eigenschaften, ihre oft unausgewogene Aminoshezusammensetzung oder durch harWckig anhaftenden off-flavour. Eine Mtiglichkelt zur Veriinderung dieser Eigenschaften wird neuerdings in der enzymatischen Modi-
Die Acetylierung bewirkt eine Blockierung der basischen 8-NHz-Gruppe durch den neutralen CHsCO-Rest, bei der Acylierung durch Bernsteinsaureanhydrid tritt an die Stelle der basischen Funktion dagegen die negativ geladene COO --Gruppe. Die Guanidylierung erhoht durch die Umwandlung der Lysin-in Homoargininreste die Baskitat in der Mole-' Herm Professor Dr. habil. H. HAENEL zum 60. Geburtstag gewidmet.
The present work deals with the applicability of the Rocket technique on cellulose acetate film and of the countercurrent immunoelectrophoresis for identification or determination of faba bean protein in model foods. It was found that both the methods are suitable for a rapid and uncomplicated determination or identification of faba bean protein in not heat-denaturized food. Cross reactivities occur with other leguminous proteins existing in the samples, effects of which add with those of the faba bean protein additive if the Rocket technique is used. With determination of faba protein by means of the Rocket-technique on cellulose acetate film coefficients of variation of about 20% are obtained.
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