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.
Yes, Mexico City is a primate city (its the capital of Mexico and it has more than twice the population of Mexico's second largest city, Guadalajara). 2 people found this useful. Edit. Share to: Answered. In France.  A â¦ primate city is much larger than any other cities in the  region or country, at least twice as large and important as any  other city in the area. . 3 people found this useful.