Glazing agent
Encyclopedia
Glazing agents, or polishing agents, are food additive
s providing shiny appearance or protective coating to foods. Mostly they are based on wax
es.
Examples are:
Food additive
Food additives are substances added to food to preserve flavor or enhance its taste and appearance.Some additives have been used for centuries; for example, preserving food by pickling , salting, as with bacon, preserving sweets or using sulfur dioxide as in some wines...
s providing shiny appearance or protective coating to foods. Mostly they are based on wax
Wax
thumb|right|[[Cetyl palmitate]], a typical wax ester.Wax refers to a class of chemical compounds that are plastic near ambient temperatures. Characteristically, they melt above 45 °C to give a low viscosity liquid. Waxes are insoluble in water but soluble in organic, nonpolar solvents...
es.
Examples are:
- Stearic acidStearic acidStearic acid is the saturated fatty acid with an 18 carbon chain and has the IUPAC name octadecanoic acid. It is a waxy solid, and its chemical formula is CH316CO2H. Its name comes from the Greek word στέαρ "stéatos", which means tallow. The salts and esters of stearic acid are called stearates...
(E570) - BeeswaxBeeswaxBeeswax is a natural wax produced in the bee hive of honey bees of the genus Apis. It is mainly esters of fatty acids and various long chain alcohols...
(E901) - Candelilla waxCandelilla waxCandelilla wax is a wax derived from the leaves of the small Candelilla shrub native to northern Mexico and the southwestern United States, Euphorbia cerifera and Euphorbia antisyphilitica, from the family Euphorbiaceae...
(E902) - Carnauba waxCarnauba waxCarnauba , also called Brazil wax and palm wax, is a wax of the leaves of the palm Copernicia prunifera, a plant native to and grown only in the northeastern Brazilian states of Piauí, Ceará, and Rio Grande do Norte. It is known as "queen of waxes" and usually comes in the form of hard yellow-brown...
(E903, used to provide shiny appearance to chocolate and many other foods) - ShellacShellacShellac is a resin secreted by the female lac bug, on trees in the forests of India and Thailand. It is processed and sold as dry flakes , which are dissolved in ethyl alcohol to make liquid shellac, which is used as a brush-on colorant, food glaze and wood finish...
(E904) - Microcrystalline waxMicrocrystalline waxMicrocrystalline waxes are a type of wax produced by de-oiling petrolatum, as part of the petroleum refining process. In contrast to the more familiar paraffin wax which contains mostly unbranched alkanes, microcrystalline wax contains a higher percentage of isoparaffinic hydrocarbons and...
(E905c), Crystalline wax (E907) - LanolinLanolinLanolin , also called Adeps Lanae, wool wax or wool grease, is a yellow waxy substance secreted by the sebaceous glands of wool-bearing animals. Most lanolin used by humans comes from domestic sheep...
(E913) - Oxidized polyethylene wax (E914)
- Esters of colophonium (E915)
- ParaffinParaffinIn chemistry, paraffin is a term that can be used synonymously with "alkane", indicating hydrocarbons with the general formula CnH2n+2. Paraffin wax refers to a mixture of alkanes that falls within the 20 ≤ n ≤ 40 range; they are found in the solid state at room temperature and begin to enter the...
See also
- Glaze (cooking technique)Glaze (cooking technique)A glaze in cooking is a coating of a glossy, often sweet, sometimes savoury, substance applied to food typically by dipping, dripping, or with a brush. Egg whites and basic icings are both used as glazes...
- Food CoatingFood coatingCoating is an industrial process which consists in applying a liquid or a powder onto the surface of a product of any possible shape to convey new properties. Coating designates an operation as much as the result of it: the application of a layer and the layer itself...
, a comprehensive description of this unit operation in a food processing line.