Growth response of Eurotium chevalieri, Aspergillus fumigatus and Penicillium brevicompactum in Argentine milk jam
Milk jam (dulce de leche) is a typical Argentine sweet spread prepared from milk concentrated by evaporation to about 70% w/w total solids at atmospheric pressure with added sucrose, glucose and vanillin. Growth of xerotolerant moulds represents a severe problem in this type of product with high sug...
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2005
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| Acceso en línea: | https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_10820132_v11_n4_p297_Char http://hdl.handle.net/20.500.12110/paper_10820132_v11_n4_p297_Char |
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paper:paper_10820132_v11_n4_p297_Char2023-06-08T16:05:46Z Growth response of Eurotium chevalieri, Aspergillus fumigatus and Penicillium brevicompactum in Argentine milk jam Char, Cielo Dolores Guerrero, Sandra González, Laura Elisabeth Alzamora, Stella Maris Aspergillus fumigatus Eurotium chevalieri Food safety Gompertz model Milk jam Moulds Penicillium brevicompactum Aspergillus fumigatus Eurotium chevalieri Food safety Gompertz model Milk jam Penicillium brevicompactum Atmospheric pressure Concentration (process) Dairy products Filling Fungi Growth kinetics Optimization Safety factor Food products Aspergillus fumigatus Eurotium chevalieri Penicillium Penicillium brevicompactum Milk jam (dulce de leche) is a typical Argentine sweet spread prepared from milk concentrated by evaporation to about 70% w/w total solids at atmospheric pressure with added sucrose, glucose and vanillin. Growth of xerotolerant moulds represents a severe problem in this type of product with high sugar concentration. This work aimed at analysing the influence of water activity (a w , range 0.74-0.85), pH (5.5 and 6.0) and the addition of 1,000ppm potassium sorbate on Eurotium chevalieri, Aspergillus fumigatus and Penicillium brevicompactum growth response in milk jam stored at 25°C or 35°C during 90 days. Growth curves were successfully modelled by applying the modified version of Gompertz equation. There were proposed polynomials equations relating time to detection, X, with two independent variables: potassium sorbate and water activity at pH 6.0. Some useful combinations of these factors were found to assure inhibition of mould growth during a critical storage period. Results might contribute to optimise manufacture conditions and/or milk jam composition to obtain a safer product when failure occurs during the hot filling process or when the product is stored for a long period of time. © 2005 Sage Publications. Fil:Char, C. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales; Argentina. Fil:Guerrero, S. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales; Argentina. Fil:González, L. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales; Argentina. Fil:Alzamora, S.M. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales; Argentina. 2005 https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_10820132_v11_n4_p297_Char http://hdl.handle.net/20.500.12110/paper_10820132_v11_n4_p297_Char |
| institution |
Universidad de Buenos Aires |
| institution_str |
I-28 |
| repository_str |
R-134 |
| collection |
Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA) |
| topic |
Aspergillus fumigatus Eurotium chevalieri Food safety Gompertz model Milk jam Moulds Penicillium brevicompactum Aspergillus fumigatus Eurotium chevalieri Food safety Gompertz model Milk jam Penicillium brevicompactum Atmospheric pressure Concentration (process) Dairy products Filling Fungi Growth kinetics Optimization Safety factor Food products Aspergillus fumigatus Eurotium chevalieri Penicillium Penicillium brevicompactum |
| spellingShingle |
Aspergillus fumigatus Eurotium chevalieri Food safety Gompertz model Milk jam Moulds Penicillium brevicompactum Aspergillus fumigatus Eurotium chevalieri Food safety Gompertz model Milk jam Penicillium brevicompactum Atmospheric pressure Concentration (process) Dairy products Filling Fungi Growth kinetics Optimization Safety factor Food products Aspergillus fumigatus Eurotium chevalieri Penicillium Penicillium brevicompactum Char, Cielo Dolores Guerrero, Sandra González, Laura Elisabeth Alzamora, Stella Maris Growth response of Eurotium chevalieri, Aspergillus fumigatus and Penicillium brevicompactum in Argentine milk jam |
| topic_facet |
Aspergillus fumigatus Eurotium chevalieri Food safety Gompertz model Milk jam Moulds Penicillium brevicompactum Aspergillus fumigatus Eurotium chevalieri Food safety Gompertz model Milk jam Penicillium brevicompactum Atmospheric pressure Concentration (process) Dairy products Filling Fungi Growth kinetics Optimization Safety factor Food products Aspergillus fumigatus Eurotium chevalieri Penicillium Penicillium brevicompactum |
| description |
Milk jam (dulce de leche) is a typical Argentine sweet spread prepared from milk concentrated by evaporation to about 70% w/w total solids at atmospheric pressure with added sucrose, glucose and vanillin. Growth of xerotolerant moulds represents a severe problem in this type of product with high sugar concentration. This work aimed at analysing the influence of water activity (a w , range 0.74-0.85), pH (5.5 and 6.0) and the addition of 1,000ppm potassium sorbate on Eurotium chevalieri, Aspergillus fumigatus and Penicillium brevicompactum growth response in milk jam stored at 25°C or 35°C during 90 days. Growth curves were successfully modelled by applying the modified version of Gompertz equation. There were proposed polynomials equations relating time to detection, X, with two independent variables: potassium sorbate and water activity at pH 6.0. Some useful combinations of these factors were found to assure inhibition of mould growth during a critical storage period. Results might contribute to optimise manufacture conditions and/or milk jam composition to obtain a safer product when failure occurs during the hot filling process or when the product is stored for a long period of time. © 2005 Sage Publications. |
| author |
Char, Cielo Dolores Guerrero, Sandra González, Laura Elisabeth Alzamora, Stella Maris |
| author_facet |
Char, Cielo Dolores Guerrero, Sandra González, Laura Elisabeth Alzamora, Stella Maris |
| author_sort |
Char, Cielo Dolores |
| title |
Growth response of Eurotium chevalieri, Aspergillus fumigatus and Penicillium brevicompactum in Argentine milk jam |
| title_short |
Growth response of Eurotium chevalieri, Aspergillus fumigatus and Penicillium brevicompactum in Argentine milk jam |
| title_full |
Growth response of Eurotium chevalieri, Aspergillus fumigatus and Penicillium brevicompactum in Argentine milk jam |
| title_fullStr |
Growth response of Eurotium chevalieri, Aspergillus fumigatus and Penicillium brevicompactum in Argentine milk jam |
| title_full_unstemmed |
Growth response of Eurotium chevalieri, Aspergillus fumigatus and Penicillium brevicompactum in Argentine milk jam |
| title_sort |
growth response of eurotium chevalieri, aspergillus fumigatus and penicillium brevicompactum in argentine milk jam |
| publishDate |
2005 |
| url |
https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_10820132_v11_n4_p297_Char http://hdl.handle.net/20.500.12110/paper_10820132_v11_n4_p297_Char |
| work_keys_str_mv |
AT charcielodolores growthresponseofeurotiumchevalieriaspergillusfumigatusandpenicilliumbrevicompactuminargentinemilkjam AT guerrerosandra growthresponseofeurotiumchevalieriaspergillusfumigatusandpenicilliumbrevicompactuminargentinemilkjam AT gonzalezlauraelisabeth growthresponseofeurotiumchevalieriaspergillusfumigatusandpenicilliumbrevicompactuminargentinemilkjam AT alzamorastellamaris growthresponseofeurotiumchevalieriaspergillusfumigatusandpenicilliumbrevicompactuminargentinemilkjam |
| _version_ |
1768545428897267712 |