Abstract
Six batches of Armada cheese were produced, one from raw milk with no added starter, another from pasteurized milk with a commercial mesophilic starter and four from pasteurized milk with experimental starters. These starters included: Lactococcus lactis subsp. lactis and L. lactis subsp. lactis biovar. diacetylactis; or the same strains plus either Enterococcus raffinosus, Leuconostoc mesenteroides subsp. dextranicum or Lactobacillus plantarum, all isolated from Armada cheese made from raw milk. The highest counts of aerobic mesophilic bacteria and populations of lactic acid bacteria for all batches were reached in the first week of ripening. These counts declined later throughout the ripening, although not at identical rates in every batch. Counts of lactobacilli were significantly higher in cheeses made from raw milk and those inoculated with the lactobacilli strain than in the other batches, over the whole ripening period. Added native starters minimized growth of Enterobacteriaceae. Cheeses made with the starter containing the Enterococcus strain had the most favourable sensory attributes throughout ripening.
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