High Pressure Inactivation of Candida tropicalis and Its Effects on Ultrastructure of the Cells

고압처리에 의한 Candida tropicalis의 불활성화 및 세포구조의 변화

  • Published : 1996.06.30

Abstract

Effects of high pressure on the inactivation and microstructure of Candida tropicalis (C. tropicalis) were in vestigated. High pressure inactivation of C. tropicalis was a first order reaction. The decimal reduction time (D value) at 400 MPa was 1.4 min at $25^{\circ}C$ and z value was 100 MPa. The effect of high pressure treatment was higher when treated at $45^{\circ}C$ than at $25^{\circ}C$. Damages in mitochondrial membrane and cell wall of C. Tropicalis were observed when it was pressurized at 400 MPa for 10 min. It indicates that high pressure affects the membrane system of the cell and causes the inactivation of C. tropicalis.

Keywords

high pressure inactivation;Candida tropicalis;decimal reduction time;ultrastructure