Food additives are commonly used in foods to perform a number of functions. They are used
to preserve food and retard spoilage, to improve nutritional value and to make food more
appealing. Food additives make food more convenient, especially for the on-the-go consumer!
Additives are used in foods for five main reasons:
Preserving and Retarding Spoilage
Antioxidants are added to food products to retard spoilage. Mold, air, bacteria and other
substances can cause food to spoil. Bacteria can also cause food borne illnesses.
Antioxidants prevent fats and oils in food products from becoming rancid and prevent
fresh fruits from turning brown when exposed to air.
Improving Nutritional Value
Vitamins and minerals are added to food to improve nutritional value. They are added to a
variety of products, including milk, flour and cereals to help reduce malnutrition among
consumers. Products containing added nutrients must be appropriately labeled.
Increasing Appeal
Spices and flavors are added to food to enhance taste, leavening agents are added to make
baked goods rise, colors are added to enhance appearance, emulsifiers are added to give
products a consistent texture, stabilizers and thickeners are added to produce a smooth
and uniform texture, anti-caking agents are added to help substances, such as salt, flow
freely rather than stay in one clump and other additives are added to modify acidity and
alkalinity of foods.
Additives may be natural or artificial. Natural additives are manufactured from natural
sources. Examples of natural additives are lecithin derived from soybeans or corn and
food coloring derived from beets. Artificial additives are often used when a natural
additive cannot be found or when they are more economical to use.
The United States Food and Drug Administration (FDA) must approve food additives before
they can be used in the United States. The safety of any proposed additive must be
investigated before they it is approved.
Food Colors
Food colors are dyes that impart color to food products. In the US, color additives are
classified as certifiable or exempt from certification. Certifiable colors are manmade.
They are tested by both the manufacturer and the FDA before they are approved or certified
for use. There are nine certified colors approved for use in the US, including FD&C Yellow
No.6.
Color additives that are exempt from certification are derived from natural sources such
as vegetables, minerals or animals, and man-made counterparts of natural derivatives. They
include caramel color, which is used in sauces, soft drinks, baked goods and other foods.
These too are tested before approval for use is granted.
Certifiable color additives are used widely because their coloring ability is greater than
most colors derived from natural products. This enables food producers to use smaller
quantities, which is more economic. In addition, certifiable color additives are more
stable, provide better color uniformity and blend together easily to provide a wide range
of hues. Certifiable color additives generally do not impart undesirable flavors to foods,
while color derived from foods such as beets and cranberries can produce such unintended
effects.
Certifiable color additives are available for use in water-soluble form, oil-soluble form,
as powders, granules, liquids or other special purpose forms. They are used in a wide
variety of products including beverages, dry mixes, baked goods, confections, dairy
products, coated tablets, hard candies and chewing gums.
The flexibility of using additives makes it easier to produce food products with long
shelf life, appealing taste and color and with high nutritious value. It also poses a
challenge for Muslims since the processes used to produce the additives and the sources
of the additives may introduce haram ingredients into an otherwise Halal product. For
those with allergies, the use of additives may pose additional concerns, since they are
present in small quantities and may not be listed very descriptively.
(Extracted from an FDA/IFIS January 1992 brochure on Food Additives.)