Cereals and nuts

Physical tests

• Appearance + smell
• net weight
• share of ingredient
• calibre (nuts, pickles)
• percentage split (nuts)

Microbiology

• aerobic mesophilic germ count at 30°C

fungi and yeasts

• ß-glucuronidase positive E. coli
• coagulase positive staphylococci
• Bacillus cereus at 30°C
• Listeria monocytogenes (in 25g)
• Salmonella (in 25 g)

Nutritional value

• fluids, dry matter
• ash
• protein
• fat after acid hydrolysis (Weibull)
• reducing sugars after inversion (as glucose)
• dietary fibre (Asp)
• fatty acids (C4 to C24)
• total carbohydrates (calculated)
• energetic value (kcal and kJ)
• salt (Na*2.5)

Minerals and metals

Unwanted substances, contaminants, pesticides

• pesticides screening GC/LC
• peroxide number
• free fatty acids (oleic acid)
• acrylamide
• polyaromatic hydrocarbons (benzo(a)anthracene,chrysene,benzo(b)fluoranthene,benzo(a)pyrene)

Toxins

• ochratoxin A
• aflatoxins (B1,B2,G1,G2)
• deoxynivalenol (DON)
• HT2 and T2 toxins
• zearalenone (ZEA)
• fumonisin

Sundry

• salt (as NaCl via titration chlorides)