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Título : Growth and metabolic activity of a cheese starter in CO2-acidified and non-acidified refrigerated milk
Autor : Ruas-Madiedo, Patricia ; Alonso López, Leocadio ; González de Llano, Dolores ; González de los Reyes-Gavilán, Clara
Palabras clave : CO2-acidified milk
Refrigerated milk
Starter
Cheese
Fecha de publicación : 23-mar-1998
Editor: Springer
Citación : European Food Research and Technology 206(3): 179-183 (1998)
Resumen: The growth and activity of two Lactococcus strains and one Leuconostoc strain in CO2-acidified and non-acidified refrigerated milk were evaluated separately and as a mixed culture to determine their suitability for use as a starter in the manufacture of Afuega’l Pitu, an acid-coagulated Spanish cheese, from refrigerated CO2-acidified milk. The growth of the strains studied and their production of organic acids were similar in CO2-acidified and non-acidified refrigerated or fresh milk, indicating that CO2 treatment does not affect the metabolic activity of the strains. However, refrigeration enhanced the production of acetaldehyde, ethanol and diacetyl in CO2-acidified and non-acidified milk. The level of diacetyl was also greater in refrigerated CO2-acidified milk than in refrigerated non-acidified milk. It was concluded that refrigerated milk acidified with CO2 can be satisfactorily used in the manufacture of Afuega’l Pitu cheese, and that this technique can be also used in the production of other acid-coagulated cheeses.
Versión del editor: http://dx.doi.org/10.1007/s002170050238
URI : http://hdl.handle.net/10261/4287
DOI: 10.1007/s002170050238
ISSN: 1438-2377
E-ISSN: 1438-2385
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