Low temperature (refrigeration and freezing) : Most organisms grow very little or not at all at 0 o C. Perishable foods are stored at low temperatues to slow rate of growth and consequent spoilage (. milk). Low temperatures are not bactericidal. Psychrotrophs, rather than true psychrophiles, are the usual cause of food spoilage in refrigerated foods. Although a few microbes will grow in supercooled solutions as low as minus 20 o C, most foods are preserved against microbial growth in the household freezer.
The EFSA ANS Panel provides a scientific opinion re-evaluating the safety of propionic acid (E 280), sodium propionate (E 281), calcium propionate (E 282) and potassium propionate (E 283) which are authorised as food additives in the EU and have been previously evaluated by the SCF and JECFA. JECFA allocated an ADI “not limited”. The SCF concluded that potassium propionate could be added to the list of preservatives and established an ADI ”not specified”. Propionates are naturally occurring substances in the normal diet. The Panel considered that forestomach hyperplasia reported in long-term studies in rodents is not a relevant endpoint for humans because humans lack this organ. Based on the reported presence of reversible diffuse epithelial hyperplasia in the oesophagus the LOAEL for a 90-day study in dogs was considered by the Panel to be 1 % propionic acid in the diet and the NOAEL to be % propionic acid in the diet. The Panel considered that there is no concern with respect to genotoxicity and carcinogenicity. The Panel concluded that the present database did not allow allocation of an ADI for propionic acid - propionates. The overall mean and 95 th percentile exposures to propionic acid - propionates resulting from their use as food additives (major contributor to exposure) ranged from - and - mg/kg bw/day, respectively. The Panel noted that the concentration provoking site of contact effect in the 90-day study in dogs (1 % propionic acid in the diet) is a factor of three higher than the concentration of propionic acid - propionates in food at the highest permitted level and concluded that for food as consumed, there would not be a safety concern from the maximum concentrations of propionic acid and its salts at their currently authorised uses and use levels as food additives.
Do you find milk addictive? If so, assume an opioid-like peptide reaction. Does milk make you sneeze? If so, assume an intolerance to the immunological compounds and/or opioids, or a genuine allergic reaction – particularly if milk makes your throat itch. Does milk make you gain weight? If so, assume an opioid-like peptide reaction and/or sensitivity to IGF. Does milk provoke seizures? If so, you may need to test your reaction to calcium.
For suspected opioid-like peptide responders, individuals should test A1 milk (regular cow’s milk) versus officially branded A2 milk (Guernsey cow, buffalo, goat’s and sheep’s milk). People who are intolerant of opioids usually tolerate goat’s and sheep’s milk unless they are super-responders. See the gluten and casein responders page . Cream and Butter