For my science course work i am doing food additives and perseratives case study and i wanted to know what are the uses for them? Please help Websites are also exceptable XP!! 10 POINTS FOR BEST ANSWER!
basicially, addatives are added to food to make them taste nicer eg. sugar in cereal. & preservatives are added to food so they will keep longer ie. have a longer sell-by date
Copied okorder /food_addi... Preservatives: Preservative food additives can be used alone or in conjunction with other methods of food preservation. Preservatives may be anti-microbial preservatives, which inhibit the growth of bacteria and fungi, or antioxidants such as oxygen absorbers, which inhibit the oxidation of food constituents. Common anti-microbial preservatives include calcium propionate, sodium nitrate, sodium nitrite, sulfites (sulfur dioxide, sodium bisulfite, potassium hydrogen sulfite, etc.) and disodium EDTA. Antioxidants include BHA and BHT. Other preservatives include formaldehyde (usually in solution), glutaraldehyde (kills insects), ethanol and methylchloroisothiazolinone. The benefits and safety of many artificial food additives (including preservatives) are the subject of debate among academics and regulators specializing in food science and toxicology. (source - wikipedia) Food Additive: Food additives are substances added to food to preserve flavour or improve its taste and appearance. Some additives have been used for centuries; for example, preserving food by pickling (with vinegar), salting, as with bacon, preserving sweets or using sulfur dioxide as in some wines. With the advent of processed foods in the second half of the 20th century, many more additives have been introduced, of both natural and artificial origin. (source - wikipedia) Some additives are manufactured from natural sources such as soybeans and corn, which provide lecithin to maintain product consistency, or beets, which provide beet powder used as food coloring. Other additives are man-made. Artificial additives can be produced more economically, with greater purity and more consistent quality than some of their natural counterparts. A substance added to a food for a specific purpose in that food is referred to as a direct additive. Many direct additives are identified on the ingredient label of foods. I don't know if this is exactly what you wanted
Against. It's not the way nature intended food to be eaten, these additives and preservatives can build up in our bodies long term. For. Is mainly beneficial to retailers giving it better colour and a longer shelf life.
