“…This is much later than its use in medicine, biology and material science. Interest gradually developed in food microstructure in general (Vaughan, 1979), including milk (Knoop, 1972 journal. Yet it is common knowledge nowadays that yogurt (Tamime & Robinson, 1999), cheeses (Fox, 1987), kefir (Marshall et al, 1984), and many other foods are made by the action of microorganisms.…”