Definition of milk
In France, human milk consumption was defined in 1909 by
the International Congress of Food by the following
formula: "milk is the product of the total, full and
uninterrupted milking of a dairy female in good health, also
nourished and not overworked. It must be collected
properly and not contain colostrum (Adib and Bertrand,
2009; Leseur and melik, 1991). Milk is a whitish food
generally produced by the mammary secretory cells of
females in a process called lactation; it is one of the defining
characteristics of mammals. The milk produced by the
glands is contained in the udder. Milk secreted in the first
days after parturition is called colostrum (Kebchaoui,
2012). The quality of milk is paramount; therefore, it must
be properly stored and transported in optimal conditions
(Roux et al., 1995). This vital product consists of four
physical phases:
• A gas phase, which essentially comprises CO2 at