Inactivation of bacteria by non thermal plasma

... et al., 2006)]. www.intechopen.com Inactivation of Bacteria by Non- Thermal Plasmas 43 Fig. 15. Photograph of the microwave plasma torch with six plasma zones [Reprinted with permission ... www.intechopen.com 2 Inactivation of Bacteria by Non- Thermal Plasmas R. Morent and N. De Geyter Research Unit Plasma Technology – Department of Applied Physic...

Ngày tải lên: 18/05/2014, 20:36

... in the inactivation process. © 2008 American Institute of Physics. ͓DOI: 10.1063/1.2977674͔ I. INTRODUCTION One of the most attractive features of nonequilibrium plasmas is their enhanced plasma ... significant effect on the inactivation of bacteria, which is not fulfilled for atmospheric pressure air plasma. 27 The effect of heat is normally avoided when the gas temperature...

Ngày tải lên: 18/05/2014, 20:36

... iv TABLE OF CONTENTS v INTRODUCTION 1 THE PROCESS 3 What is Non- Thermal Plasma? 3 What is the Status of Non- Thermal Plasma Research and Development? . 4 Powerspan Corporation 4 BOC Gases 6 COST OF NON- THERMAL ... University of Minnesota, Non- Thermal Plasma Pasteurization of Liquid Food,” by S. Deng et al., presented at the 2003 International Food Technology Ann...

Ngày tải lên: 23/03/2014, 02:20

... elimination of 10 9 CFU/ml of each tested bacterial isolate (using O 2 -N 2 plasma mixture at 300 W) are shown in gures 1, 2, and 3. Figure 1 illustrates the inuence of plasma pressure on bacterial ... Brief Report 335 Role of RF remote plasma in bacterial inactivation Iran J Med Sci December 2013; Vol 38 No 4 Materials and Methods Plasma System The experimental...

Ngày tải lên: 18/05/2014, 20:36

... Prevention of thermal inactivation and aggregation of lysozyme by polyamines Motonori Kudou 1 , Kentaro Shiraki 1 , Shinsuke Fujiwara 2 , Tadayuki Imanaka 3 and Masahiro Takagi 1 1 School of Materials ... (h); or spermine (j). Ó FEBS 2003 Prevention of thermal aggregation by polyamines (Eur. J. Biochem. 270) 4549 Heat inactivation of lysozyme The recovery of enzymatic...

Ngày tải lên: 20/02/2014, 02:21

... s and 60 s are the plasma treatment times. 101 Figure 56. SEM images of 120 sec of plasma treatment of dry B. stratosphericus shows etching of bacteria. Etching of the bacterial membrane is ... Complete destruction of chromosomal DNA by DBD plasma after 2 sec plasma treatment 99 Figure 54. Lane spectra of treated chromosomal DNA by plasma shows removal with 2...

Ngày tải lên: 18/05/2014, 20:34

... inacti- vation of Enterococcus faecalis bacteria by means of an atmospheric cold plasma brush driven by an ac power supplier. The influences of oxygen addition into the helium atmospheric plasma brush ... Sterilization effect of atmospheric cold plasma brush Figure 3 shows the change of the survival curves of Enterococcus faecalis bacteria in the He with addition of...

Ngày tải lên: 18/05/2014, 20:36

... and extent of inactivation of G. lamblia cysts by several doses of both LP and medium pressure (MP) UV in buffered and real field waters in order to determine the effectiveness of these UV ... et al, 2002, Mofidi et al, 2002, Campbell et al, 2002). In fact, the required UV doses to achieve significant inactivation of this microorganism are as low as those of enteric bact...

Ngày tải lên: 05/09/2013, 09:08

... present result was obtained by the difference of the penetration of CO 2 into the bacterial cells. Since it is stated by law that the number of coliform and total bacteria must be kept less ... enzyme inactivation by the SC-CO 2 treatment was caused by irreversible destruction of the α-helix structure of protein enzyme. Ballestra et al. (1996) suggested that select...

Ngày tải lên: 05/09/2013, 09:38

... formation of the 350 nm band, was induced by some aldehydes, notably putrescine. Some mechanisms of inactivation are proposed. Keywords: copper amine oxidase; trihydroxyphenylalanine quinone; inactivation; ... cuvette closed by a Teflon stopper. The oxygen was consumed by most substrates within the mixing time as revealed by the immediate bleaching of the TPQ 500 nm band and...

Ngày tải lên: 19/02/2014, 12:20