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.
Ad. 2. Learn common preservative names. Although there are hundreds of food additives that function as preservatives, some of the most common appear in a wide variety of foods. 1  Once you learn to identify common preservatives you can quickly avoid selecting foods with those preservatives in the future. Once you learn to identify common preservatives you can quickly avoid selecting foods with those preservatives in the future. 2  Some of the most common preservatives include citric acid, sulfur dioxide, ascorbic acid, propionic acid, nitrates and nitrites, sodium bisulfite, sulfites, and even formaldehyde.