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.
Preservatives. Preservatives prevent or inhibit spoilage of food due to fungi, bacteria and other microorganisms. Stabilizers. Stabilizers, thickeners and gelling agents, like agar or pectin (used in jam for example) give foods a firmer texture.ood acids are added to make flavors sharper, and also act as preservatives and antioxidants. Common food acids include vinegar, citric acid, tartaric acid, malic acid, fumaric acid, and lactic acid. Acidity regulators.