An increased AST level is usually a sign of liver disease. Liver disease is even more likely when the levels of substances checked by other liver blood tests have also increased. An increased AST level may be due to any of the following:
In order to keep itself fresh, the lettuce gives off carbon dioxide, causing a slight odour. This carbon dioxide is not harmful and the odour should disappear quickly once the salad package is opened.
Artificial preservatives are the chemical substances that stops of delayed the growth of bacteria, spoilage and its discoloration. These artificial preservatives can be added to the food or sprayed on the food.In antimicrobial comes the Benzoates, Sodium benzoate, Sorbates and Nitrites.o preserve meat and fish, salt is still used as a natural food preservative. Chemical food preservatives are also being used for quite some time now. They seem to be the best and the most effective for a longer shelf life and are generally fool proof for the preservation purpose.