Glycerine/glycerol is a colorless, odorless, syrupy, sweet liquid, usually obtained by saponification of natural fats and oils. It is also a 10% by-product of biodiesel production via the trasesterification of vegetable oils.
Their applications in daily life:
a) Medicine and pharmaceutical technology
- Used in medical and pharmaceutical preparations, mainly as a means of improving smoothness, providing lubrication and as a humectant. Also may be used to lower intracranial and intraocular pressures.
- As a prochiral building block in organic synthesis
- Used as a laxative when introduced into the rectum in suppository or liquid (enema) form; irritates the bowel and induces a hyperosmotic effect.
- Cough syrups, elixier and expectorants
- Used as substitute for alcohol, as a solvent that will create a therapeutic herbal extraction.
b) Personal care
- As an emollient, humectant, solvent, and lubricant in personal care products.
- Tootpaste, mouthwashes, skin care products, shaving cream, hair care products and Glycerol soap, which is made from glycerol, denatured alcohol, sodium castorate, sodium cocoate, sodium tallowate, sucrosa, water and perfume (fragnance). Sometimes one adds sodium laureth sulfate. This kind of soap is used by people with sensitive, easily irritated skin because it prevents skin dryness with it moisturising properties.
c) Food and beverages
- Serve as humectant, solvent and sweetener, may help preserve foods.
- Solvent for flavor such as vanilla and food coloring
- Humectant and softening agent in candy, cakes and using for meat and cheeses.
- Manufacture of mono- and di- glycerides for use as emulsifiers.
- Used as filler in low fat food products (i.e. cookies)
- used as thickening agent in liqueurs.
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