When the product pH is less than pH 4.1, due to. the addition of vinegar (acetic acid), and the dressings and. mayonnaise are held at room temperature for a few days, Salmonella spp. are inactivated (Smittle, 1977). Other organic. acids do not function as effectively as acetic acid.
These primate cities are often, but not always, the capital cities of a country. An excellent example of a primate city is Paris, which truly represents and serves as the focus of France.ome scholars define a primate city as one that is larger than the combined populations of the second and third ranked cities in a country. This definition does not represent true primacy, however, as the size of the first ranked city is not disproportionate to the second.
b) stops lovely family cities websites from make any sensible statistical comparisons. Anyway. Because it's Friday afternoon, we decided to kick back, relax, and super-impose a map of Paris onto London, to give you some sense of exactly how small Paris really is. We've placed the Ãle de la CitÃ©, the historic heart of Paris, on London's Trafalgar Square, in an attempt to align the centres of the two cities.