Thermal destruction of dried vegetative yeast cells and dried bacterial spores in a convective hot air flow: Strong influence of initial water activity

Environmental Microbiology

Volumn 7, Issue 1, 2005, Pages 40-46

  Fine, Frédéric ^a,b   Gervais, Patrick ^a  

^a UNIVERSITÉ DE BOURGOGNE   (France)

^b UNILEVER RESEARCH   (United Kingdom)

Author keywords

[No Author keywords available]

Indexed keywords

WATER;

ARTICLE; BACILLUS SUBTILIS; BACTERIAL SPORE; DESICCATION; EVALUATION; FOOD CONTAMINATION; FOOD PRESERVATION; GROWTH, DEVELOPMENT AND AGING; HEAT; METHODOLOGY; PHYSIOLOGY; SACCHAROMYCES CEREVISIAE; THERMODYNAMICS;

BACILLUS SUBTILIS; CONVECTION; DESICCATION; FOOD CONTAMINATION; FOOD PRESERVATION; HEAT; SACCHAROMYCES CEREVISIAE; SPORES, BACTERIAL; WATER;

BACILLUS SUBTILIS; BACTERIA (MICROORGANISMS); SACCHAROMYCES; SACCHAROMYCES CEREVISIAE;

EID: 12544258102     PISSN: 14622912     EISSN: None     Source Type: Journal    
DOI: 10.1111/j.1462-2920.2004.00689.x     Document Type: Article

References (23)

1. Atrih, A., and Foster, S.J. (2002) Bacterial endospores: the ultimate survivors. Int Dairy J 12: 217-223.
2. Brown, K. (1994) Spore resistance and ultra heat treatment processes. J Appl Bacteriol Symp Suppl 76: 67S-80S.
3. Corry, J. (1971) The water relations and heat resistance of microorganisms. Br Food Manufacturing Ind Res Assoc: Sci Techn Surv 73: 1-42.
4. Driks, A. (1999) Bacillus subtilis spore coat. Microbiol Mol Biol R 63: 1-20.
5. Fine, F., and Gervais, P. (2003) Décontamination des poudres alimentaires: revue bibliographique et nouvelles perspectives. Sci Aliment 23: 367-394.
6. Gawrisch, K., Parsegian, V.A., Hajduk, D.A., Tate, M.W., Graner, S.M., Fuller, N.L., and Rand, R.P. (1992) Energetics of a hexagonal-lamellar- hexagonal-phase transition sequence in dioleoylphosphatidylethanolamine membranes. Biochemistry 31: 2856-2864.
7. Gervais, P., Marechal, P.A., Perrier-Cornet, J.M., Ferret, E., and Laroche, C. (2002) Procédé de Décontamination Microbiologique de Produits Pulvérulents. International Patent no. WO/02071853.
8. Härnulv, B.G., Johansson, M., and Snygg, B.G. (1977) Heat resistance of Bacillus stearothermophilus spores at different water activities. J Food Sci 42: 91-93.
9. Iversen, C., and Forsythe, S. (2003) Risk profile of Enterobacter sakazakii, an emergent pathogen associated with infant milk formula. Trends Food Sci Tech 14: 443-454.
10. Klibanov, A. (1989) Enzymatic catalysis in anhydrous organic solvents. Trends Biochem Sci 14: 141-144.
11. Laroche, C., and Gervais, P. (2003) Unexpected thermal destruction of dried glass beads-immobilized microorganisms as a function of water activity. Appl Environ Microbiol 69: 3015-3019.
12. Leuschner, R.G.K., and Lillford, P.J. (2002) Thermal properties of bacterial spores and biopolymers. Int J Food Microbiol 80: 131-143.
13. Mann, A., Kiefer, M., and Leuenberger, H. (2001) Thermal sterilization of heat-sensitive products using high-temperature short-time sterilization. J Pharm Sci 90: 275-287.
14. Martinez De Maranõn, I., Chaudanson, N., Joly, N., and Gervais, P. (1999) Slow heat rate increases yeast thermotolerance by maintaining plasma membrane integrity. Biotechnol Bioeng 65: 176-181.
15. Mazas, M., Martinez, S., Lopez, M., Alvarez, A.B., and Martin, R. (1999) Thermal inactivation of Bacillus cereus spores affected by the solutes used to control water activity of the heating medium. Int J Food Microb 53: 61-67.
16. Murrell, W., and Scott, W. (1966) The heat resistance of bacterial spores at various water activities. J Gen Microbiol 43: 411-425.
17. Paidhungat, M., Setlow, F., Driks, A., and Setlow, P. (2000) Characterization of spores of Bacillus subtilis which lack dipicolinic acid. J Bacteriol 182: 5505-5512.
18. Poirier, I., Marechal, P.A., Richard, S., and Gervais, P. (1998) Saccharomyces cerevisiae viability is strongly dependant on rehydration kinetics and the temperature of dried cells. J Appl Microbiol 86: 87-92.
19. Precht, H., Christophersen, J., and Hensen, H. (1955) Temperatur und Leben. Berlin: Springer-Verlag, pp. 35-42.
20. Setlow, P. (1995) Mechanisms for prevention of damage to DNA in spores of Bacillus species. Annu Rev Microbiol 49: 29-54.
21. Shalaev, E., and Steponkus, P.L. (1999) Phase diagram of 1,2-dioleoylphosphatidylethanolamine (DOPE): water system at subzero temperatures and at low water contents. Biochim Biophys Acta 1419: 229-247.
22. Warth, A.D. (1980) Heat stability of Bacillus cereus enzymes within spores and in extracts. J Bacteriol 134: 27-34.
23. Zaks, A., and Klibanov, A. (1988) The effect of water on enzyme action in organic media. J Biol Chem 17: 8017-8021.