Dairy products

Physical tests

• Appearance + smell
• net weight
• gas composition headspace (oxygen, carbon dioxide, nitrogen)

Microbiology

• aerobic mesophilic germ count at 30°C
• fungi and yeasts
• lactobacilli
• enterobacteriaceae at 37°C
• coliforms
• ß-glucuronidase positive E. coli
• coagulase positive staphylococci
• sulphite-reducing anaerobes
• Listeria monocytogenes (in 25g)
• Salmonella (in 25 g)

Nutritional value

Minerals and metals

Additives and sweeteners

• sorbic acid and benzoic acid
• nisine

Toxins

• aflatoxin M1

PCR

• Bovine DNA

Various

• water activity (25°C)
• gluten
• soya protein
• milk proteins (whey protein and casein)
• fat in dry matter