If he had autism he wouldn't be very social, but very shy. I don't think flapping his arms is a sign of autism, but if you're concerned about it, ask a neurologist about it, or his doctor, either way. :) â¥ Cute T â¥ Â· 9 years ago.
If it weren't for food preservatives, we couldn't enjoy many of the great foods the world has to offer. Common antimicrobial preservatives include sodium nitrate, calcium propionate, disodium EDTA, potassium sorbate, sodium benzoate, and sulfites.
The most common preservatives, such as sorbic acid, benzoic acid, calcium propionate, sodium nitrite and disodium EDTA, are used to kill bacteria and fungus that cause rot. Other preservatives, such as BHT, BHA and propyl gallate, prevent food from changing color when exposed to oxygen.reservatives and additives are listed, however, on the ingredients list of any packaged food. While some packages will specify which ingredients are preservatives, others will simply state the name of the chemical.