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.
Food manufacturers use an array of food preservatives to keep food fresh and stable, as well as to extend shelf life and prevent natural decay. One of the most common food preservatives is salt, suitable for many uses such as preserving meat, canned vegetables and fruits, as well as frozen desserts and vegetables.