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.
Paris is the largest city and capital of France. The City of Paris has just 40 square miles of land with a population of 2.24 million in the city limits, and the most populous urban area in all of the European Union. The city proper has a density of over 21,000 people per square kilometer. The much larger Paris Region, with 4,638 square miles of land, has its own president and regional council with a population of 12 million. This accounts for 18% of France's total population.