A variety of natural spice extractive products have taken their place on the modern spice shelf for industrial users. Here is a brief rundown:
Essential Oils
The volatile aromatic fractions of a spice; usually derived by steam distillation. These are used in oil soluble systems for ketchup, mayonnaise, spaghetti sauces, salad dressings, etc. Also, to fortify and standardize oleoresins and other extractives and in spice blends.
Oleoresins
Derived by a solvent-extraction of the whole spice. These include the volatile and non-volatile fractions. The solvents are later removed. Oleoresins may be used as is, combined with natural spices in a blend, or, used as a base for a number of different seasoning products as follows:
Liquid Solubles
Oleoresins to which solubilizing agents (Polysorbate 80, mono and diglycerides and water soluble gums) are added to create a liquid seasoning. Typical uses include pickling solutions, condiments, sauces and beverages.
Dry Solubles
Oleoresins are plated onto dry carriers such as dextrose, salt, flour and yeast. These products, which are available in varying strengths, are designed to be functional adjuncts or replacements for dried, ground spices.
Encapsulated Spices
Oleoresins are encapsulated by different techniques. The most common approach is spray drying, in which the extractive is mixed with a gum or starch, then sprayed into a hot chamber to flash off the water. In another technique, the extractive is placed in a heated carbohydrate mix, which is extruded into cold alcohol to solidify the particles. This is then heated to remove the alcohol. Encapsulated spices are especially suited to dry soup and salad dressing mixes, beverage powders and any products, which will be mixed with or reconstituted in water.
Standardized Oleoresins
Oleoresins to which additional essential oils and/or solubilizing agents are added to meet specific requirements.
WONF
(With Other Natural Flavors) Essential oils or oleoresins to which other natural flavoring materials are added to extend or enhance flavor. The WONF’s must characterize the lead flavor and their presence must be declared on labels. (Reference CFR 21, part 101.22)
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