Inactivation kinetics of Listeria innocua in skim milk in a continuous flow processing system
Thermal inactivation of Listeria innocua in raw skim milk determined under continuous flow conditions was compared to results from the capillary tube method at 65, 68, and 70 degrees C. A laboratory scale pasteurizer (LSP) was used to generate kinetic data under isothermal, continuous-flow condition...
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Published in | Journal of food science Vol. 59; no. 5 |
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Main Authors | , , |
Format | Journal Article |
Language | English |
Published |
01.09.1994
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Abstract | Thermal inactivation of Listeria innocua in raw skim milk determined under continuous flow conditions was compared to results from the capillary tube method at 65, 68, and 70 degrees C. A laboratory scale pasteurizer (LSP) was used to generate kinetic data under isothermal, continuous-flow conditions. Inactivation was monitored by sampling at various locations along the hold tubes. D(65 degrees C)-, D(68 degrees C)- and D(70 degrees C)- values for L. innocua M1 were 11.5, 3.5, and 1.6 sec, respectively, when determined by the LSP system and 16.5, 3.9, 1.5 sec, respectively, when determined by the capillary tube method. Decimal reduction times for the two methods were predicted to be coincident at 69 degrees C. ZD-values for the capillary tube and LSP systems were significantly different. The data suggest that the mechanism of thermal destruction may be different between batch and continuous flow processes |
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AbstractList | Thermal inactivation of Listeria innocua in raw skim milk determined under continuous flow conditions was compared to results from the capillary tube method at 65, 68, and 70 degrees C. A laboratory scale pasteurizer (LSP) was used to generate kinetic data under isothermal, continuous-flow conditions. Inactivation was monitored by sampling at various locations along the hold tubes. D(65 degrees C)-, D(68 degrees C)- and D(70 degrees C)- values for L. innocua M1 were 11.5, 3.5, and 1.6 sec, respectively, when determined by the LSP system and 16.5, 3.9, 1.5 sec, respectively, when determined by the capillary tube method. Decimal reduction times for the two methods were predicted to be coincident at 69 degrees C. ZD-values for the capillary tube and LSP systems were significantly different. The data suggest that the mechanism of thermal destruction may be different between batch and continuous flow processes |
Author | Swartzel, K.R Foegeding, P.M Fairchild, T.M. (International Paper Co., Durham, NC.) |
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CitedBy_id | crossref_primary_10_4315_0362_028X_67_11_2560 crossref_primary_10_1016_S0963_9969_99_00100_3 crossref_primary_10_1111_j_1365_2621_1995_tb09800_x crossref_primary_10_1016_S0168_1605_02_00043_0 crossref_primary_10_1016_S0958_6946_96_00023_4 crossref_primary_10_1016_j_idairyj_2021_105096 crossref_primary_10_1016_S0168_1605_02_00264_7 crossref_primary_10_1016_j_ifset_2007_07_008 crossref_primary_10_1111_j_1365_2672_2009_04195_x crossref_primary_10_4315_0362_028X_64_3_410 crossref_primary_10_1016_j_lwt_2008_05_005 crossref_primary_10_1007_s11947_007_0010_5 |
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SubjectTerms | LAIT ECREME LECHE DESNATADA LISTERIA PASTEURISATION PASTEURIZACION TECHNOLOGIE ALIMENTAIRE TECNOLOGIA DE LOS ALIMENTOS |
Title | Inactivation kinetics of Listeria innocua in skim milk in a continuous flow processing system |
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