Thermal inactivation of Alicyclobacillus acidoterrestris spores isolated from a fruit processing plant and grape juice concentrate in South Africa
dc.contributor.author | Groenewald, Willem H. | |
dc.contributor.author | Gouws, Pieter A. | |
dc.contributor.author | Witthuhn, R. Corli | |
dc.date.accessioned | 2016-11-22T10:04:54Z | |
dc.date.available | 2016-11-22T10:04:54Z | |
dc.date.issued | 2013 | |
dc.description.abstract | Thermal inactivation at 95°C for two strains of Alicyclobacillus acidoterrestris isolated from contaminated fruit juice concentrates were investigated in a 0.1% (m/v) peptone buffer solution (pH 7.04) and grape juice (pH 4.02, 15.5 °Brix). The thermal inactivation of A. acidoterrestris spores followed first-order kinetics, suggesting that as the microbial population is exposed to a specific high temperature, the spores were inactivated at a constant rate. D-values determined in the buffer solution were calculated to be 1.92 ± 0.39 and 2.29 ± 0.50 min, while in grape juice D-values were found to be 2.25 ± 0.53 and 2.58 ± 0.32 min for the two strains tested. | en_ZA |
dc.identifier.citation | Groenewald, W. H., Gouws, P. A., & Witthuhn, R. C. (2013). Thermal inactivation of Alicyclobacillus acidoterrestris spores isolated from a fruit processing plant and grape juice concentrate in South Africa. African Journal of Microbiology Research, 7(22), 2736-2740. | en_ZA |
dc.identifier.issn | 1996-0808 | |
dc.identifier.uri | http://hdl.handle.net/11660/4732 | |
dc.language.iso | en | en_ZA |
dc.publisher | Academic Journals | en_ZA |
dc.subject | Alicyclobacillus acidoterrestris | en_ZA |
dc.subject | Endospores | en_ZA |
dc.subject | Thermal inactivation | en_ZA |
dc.subject | Heat resistance | en_ZA |
dc.subject | Spoilage | en_ZA |
dc.subject | Fruit juice concentrate | en_ZA |
dc.subject | D-value | en_ZA |
dc.title | Thermal inactivation of Alicyclobacillus acidoterrestris spores isolated from a fruit processing plant and grape juice concentrate in South Africa | en_ZA |
dc.type | Article | en_ZA |