Parameter | Attribute |
Silicon dioxide | Silica dioxide, E551 |
Formula | 10 SiO2 · 1 H2O |
Structure | |
IUPAC | Silica dioxide |
INCI | QUARTZ |
CAS | 112926-00-8 |
Molar mass | 60.08 g/mol |
Density | 2.648 g/cm3 |
Solubility | Insoluble |
Silica is a compound with the formula SiO2 and is commonly found in nature as quartz. It can be found both as a rock and as the main constituent of sand. Silica has a wide range of applications in the food industry.
In the food industry, silica is known as food additive E551. The food industry uses amorphous silica, i.e. not crystalline, odourless, non-toxic and chemically inert. Food grade silica meets the requirements of the US Food and Drug Administration (FDA), the regulations specified in 21 CFR (2) citations and the FCC (3) food additive requirements, and complies with European regulations (E551). Food grade silica is a synthetic mixture of precipitated amorphous silica particles which improves the flow properties of powders by facilitating their handling, transport and use. The high absorption capacity and adhesive properties of food grade silica make it ideal for use with all types of foodstuffs, with exceptional adhesion properties that improve the flow characteristics of the powder. It is a white, very fluffy powder (1kg~2L) which is insoluble in water and does not absorb it, making it very suitable for use as an anti-stick additive. E551 is used in bulk products, spices, freeze-dried products, mixing, coating of basic products to prevent sticking. It can be found in icing sugar for coating Turkish desserts (Lokum). In the food industry, E551 prevents materials from sticking together by spray-drying, resulting in a fine powder, improves milling processes, and facilitates the transport of powders during processing (extends shelf-life, e.g. with spices, table salt), allows precise dosing, e.g. in the form of a powder. It improves the distribution of powdered products, e.g. milk powder and cream, soups, powdered drinks, grated cheese, etc. Due to its high absorption capacity, it facilitates production processes by converting liquids into solids, improves the dosage of high-value or highly viscous products, preserves liquid properties such as color, flavor, essential oils.
Decay | Anti caking | Auxiliary material | Carrier | |
Spices | *** | * | ||
Dairy products | * | *** | ||
Dried products | * | ** | ** | |
Frozen products | * | *** | ||
Salt | *** | |||
Essential oils | *** | |||
Scents, flavours | *** |
*- satisfactorily **-perfect, ***-premium
Dietary silica is also used in its pure form, as a food supplement, as an enterosorbent, due to its high absorption capacity, to improve intestinal peristalsis and to absorb substances accumulated in the intestines. It is recommended to be used only in the form of an aqueous solution. Prepare the suspension before use. It is recommended to drink before meals or half an hour after meals (medication). Adults ~3g powder - 250 ml water. Take 2 to 3 times a day, for children aged 3 to 7 years: 1 teaspoon ~1g - 100 ml water, for children aged 7 to 14 years and older: 2 teaspoons ~2g - 200 ml water.
In cosmetics E551 is used in creams, scrubs, tooth pastes. It is useful for its light-diffusing properties and natural absorbency. It removes dental plaque or dirt from the skin surface through a grinding / polishing effect. Its functions (INCI)
- Abrasive : Removes materials from the surface of the body, helps clean teeth and improves shine.
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*- The pictures of the goods may not correspond to the actual appearance, color, assembly or shape of the goods and their packaging. The information in the product description is of a general nature and may not correspond to the information on the packaging of the product and may not be the exact use of the product. The information given on the stocks and prices of goods may, in certain cases, differ from the actual prices and stocks of goods
**- The product complies with the requirements for food additive E551 but is not intended for use as a food additive.
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