Oscillations of pH in the urea-urease system in a membrane reactor
메타 데이터
바이오화학분류
바이오정밀화학
화학제품
연료
논문
Oscillations of pH in the urea-urease system in a membrane reactor
학술지
Physical chemistry chemical physics : PCCP
저자명
Muzika, Františ ek; Rů ž ič ka, Matě j; Schreiberová , Lenka; Schreiber, Igor
초록
<P>Herein, we present direct experimental evidence of pH oscillatory dynamics in the urea-urease enzymatic reaction conducted in a continuous reactor-membrane-reservoir system. Our results are consistent with earlier model predictions requiring differential transport of H<SUP>+</SUP> and substrate. We report oscillations with periods in hundreds of seconds and the amplitude of ∼0.1 pH units.</P><P>Graphic Abstract</P><P>Urea-urease reaction in an open reservoir-membrane-reactor system displays regular spontaneous oscillations of pH.<BR/><IMG SRC='http://pubs.rsc.org/services/images/RSCpubs.ePlatform.Service.FreeContent.ImageService.svc/ImageService/image/GA?id=c9cp00630c'/><BR/></P>