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PG MONOSTEARAT = Propylene Glycol Monostearate
CAS NO:142-75-6
EC NO:215-354-3
Formula: C₂₁H₄₂O₃
PROPYLENE GLYCOL MONOSTEARATE is classified as :
Skin conditioning
Surfactant
Uses
Pharmaceutic aid (emulsifying agent).
Uses
Propylene Glycol Monostearate is a lipophilic emulsifier that is a propylene glycol ester. it is used as a dispersing aid in nondairy creamers; as a crystal stabilizer in cake shortenings and whipped toppings; and as an aeration increaser in cake batters, icings, and toppings. it is also used in oils and shortenings.
Definition
The FCC grade is a mixture of propylene glycol mono- and diesters of stearic and palmitic acids. White beads or flakes, bland odor and taste, insolu- ble in water, soluble in alcohol, ethyl acetate, chloroform and other chlorinated hydrocarbons. Combustib.
Propylene Glycol Monostearate
Propylene Glycol Monostearate (PGS) is a mixture of the 1,2-propanediol mono- P and diesters of stearic and palmitic acids in which the monoester, propylene
glycol monostearate, predominates. It is produced by reacting propylene glycol
and triple-pressed stearic acid under elevated temperatures in the presence of a
catalyst.
Propylene Glycol Monostearate is white to cream-colored, waxy solids that have.a slight, characteristic, fatty odor and taste. They are marketed in the form of beads or PGS is soluble in such organic solvents as alcohols, mineral or fixed oils, hot cottonseed oil, peanut oil, isopropyl myristate, benzene, chloroform and other chlorinated hydrocarbons, ether, acetone, and ethyl acetate. It is insoluble in water, propylene glycol, glycerine USP, PEG 400, and 70% sorbitol, PGS may be dispersed in hot water with the aid of a small amount of soap or other suitable surface active agent.(2*4.6.1ss16) PGS-SE contains such a soap component.
Propylene glycol monostearate is quite surface active. It is adsorbed at the oiI/water interface, and it forms a thick plastic film under the proper conditions of concentration and temperature.‘”) PGS produces more weakly organized, amorphous emulsions than do polyol esters.(’8) A racemic 80:20 mixture of propylene glycol monostearate and propylene glycol 2-monostearate shows four different polymorphic modifications of crystalline structure. Detailed discussions of PCS crystalline structure have been publis hed.‘ Methods for the commercial and laboratory syntheses of PGS and PGS-SE. Neither PGS nor PGS-SE absorbed UV-B light between 280 and 320 nm.
USE
Purpose and Extent of Use in Cosmetics
Propylene Glycol Monostearate produces a "waxy, occlusive, water insoluble film" when applied to the skin.I3') The major uses of PGS and PGS-SE in cosmetics are as emulsifiers, emollients, texturizers, lubricating agents, and viscosity builders. They are generally included at concentrations of 0.5%-5% in lotions and 1 %-1O% in creams.The potassium stearate component of PGS-SE provides for greater emulsifying power.
Noncosmetic Uses
In the pharmaceutical industry, Propylene Glycol Monostearate serves as an emulsifying agent and fatty base for suppositories and rectal ~intments. It is classified as an inactive ingredient in topical analgesic, antirheumatic, otic, burn, and sunburn treatment/
In foods, propylene glycol mono fatty acid esters are used as emulsifiers and stabilizers either alone or in combination with mono- and digly~erides. Propylene Glycol Monostearate has been used in the United States since 1958 because it improves the texture, softness, and "keeping quality" of several foods. The literature describes its use in such foods as macaroni,(41) mashed potatoes,'42) rnassec~ites,milk fat emulsion,fats and oils, cheese, frozen dairy desserts, imitation dairy products, gelatins and puddings, sweet sauce, alcoholic and nonalcoholic beverages, and baked good. It is used at concentrations up to 12.Ooh in edible fats and oils.
Propylene glycol is a colorless, viscous liquid. It has a wide range of applications including industrial solvents, paint and coating solvents, polyester and alkyd resins, antifreeze coolants, heat transfer fluids, deicing fluids, plasticizers, detergents and surfactants, and bactericide. USP grade is used in foods, pharmaceutical, and personal care products. Propylene glycol monostearate is not approved in Germany.
Propylene glycol monostearate (PGMS) is only slightly water dispersible, but completely soluble in fats and oils, therefore it is used only in combination with oils and fats as an emulsifier and emulsion stabilizer. In food it is mainly used in cake batters, cake icings, cake shortening, margarine, oils, oleomargarine, poultry fat, whipped toppings, icecream, and yeast. As a defoamer, it is used in food-contact paper and paperboard. In cosmetic industry it is used as an emulsifier for lotions, soft cream, makeup, humectant in dry skin products.
Propylene glycol monostearate is used in cake batter and icing
As most emulsifiers can decrease the amount of fat or oil in the product or add bulkiness or soften texture by increasing the amount of air suspended throughout the product, emulsifiers can serve to some degree as substitutes for fat and can decrease calories. Emulsifiers can be divided in natural and synthetic. Within the natural emulsifiers, the lecithins are by far the main products. Raw lecithin is produced mainly from soybeans. Lecithin is the most widely used chocolate emulsifier. Other important applications include baked goods and dairy products.
Melting Point 44°C
Quantity 25g
Color White
Formula Weight 342.56
Physical Form Crystal-Powder at 20°C
Percent Purity ≥83.0% (GC)
Propylene glycol monostearate is made from propylene glycol and stearic acid with sound foaming and emulsibility,It is used for cake and cream cake of foaming agent, also commonly used in combination with other emulsifiers, synergistic effect.
Application:
Used to Margarine and shortening for cake、whipping cream and other foods、personaly cares and medicine.
CAS Number: 1323-39-3
MDL Number: MFCD00021902
Molecular Formula: C21H42O3
Molecular Weight: 342.56
Form: Crystal
Color: White
Flash Point (°C): 156
Propylene Glycol Monostearate is a white solid, with a fatty odor and taste. This product is used as a flavor ingredient.
What Is It?
Propylene Glycol Monostearate is a mixture of esters of propylene gylcol and stearic acid. Propylene Glycol Monostearate SE is a self-emulsifying grade of Propylene Glycol Monostearate that contains some sodium and/or potassium stearate. In cosmetics and personal care products, Propylene Glycol Monostearate is used in a wide variety of cosmetics and personal care products with the most prevalent uses in face and eye makeup.
Why is it used in cosmetics and personal care products?
Propylene Glycol Monostearate and Propylene Glycol Stearate SE function as surfactants. Propylene Glycol Monostearate also functions as a skin conditioning agent - emollient.
Scientific Facts:
Propylene Glycol Monostearate is a white to cream-colored waxy solid with a slight fatty odor and taste. It is produced from stearic acid, a naturally occurring fatty acid, and is marketed in the form of beads or flakes.
Product Description
Propylene glycol monostearate is a food additive which dissolves some compounds better than water and also retains moisture well. This makes it an excellent emulsifier and a stabilizer, and it can be found in a wide range of processed foods and beverages. It is also excellent in emulsified shortenings and as an aerating emulsifier for cakes and whipped toppings.
Benefits
Propylene glycol monostearate is a good emulsifier and a wetting agent.
Propylene glycol monostearate also enhances the stabilization of the mixture and acts as a instantizing agent, release agent, as well as antioxidant or dispersant.
Propylene glycol monostearate is used in cakes as an anticaking agent, antioxidant and shortening.
In bakery Propylene glycol monostearate used for its dough strengthening, thickening, texture enhancing properties. it also prevents loss of moisture.
APPEARANCE
White waxy flakes
FUNCTION
Is a flake self-emulsifier for cosmetic formulations. It is used as food emulsifiers and thickeners of W/O type.
INDUSTRIES
Food & bev.
cosmetics
PRODUCT CLASSES
Emulsifier
thickener
Propylene glycol monostearate, also known as monosteol or 1,2-propanediol monostearate, belongs to the class of organic compounds known as fatty acid esters. These are carboxylic ester derivatives of a fatty acid. Propylene glycol monostearate is a very hydrophobic molecule, practically insoluble (in water), and relatively neutral.
Characters:
White powder or flake solid, insoluble in water, soluble in organic solvents such as ethanol, is a non-ionic emulsifier. Usually called Propylene glycol monostearate as PGMS, E code is E477, CAS NO.: 1323-39-3.
Applications:
Has excellent foam performance, good oil-soluble emulsifier.
Used in pastry margarine, prevent the bread and confect aging, improve its processing performance.
Uesd in ice cream, increase dilatability and shape preserving.
Used in margarine to improve whipping, and to prevent the oil-water separate.
Used for cakes, fried snack foods, complex sauce.
Operation method and dosage:
The max dosage for fat,oil and emulsified fat products is 10.0g/Kg, The max dosage for milk,dairy products and frozen drink is 5.0g/Kg, The max dosage for cake and fried foods is 2.0g/Kg,
Propylene glycol monostearate is used in is used in foods, pharmaceutical, and personal care products. Propylene glycol monostearate can be used as a lipophiic emulsifier and emulsion stabilizer in food. In food it is mainly used in cake batters, cake icings, cake shortening, margarine, oils, oleomargarine, poultry fat, whipped toppings, icecream, and yeast.
PROPERTIES
white powder or flakes, soluble in the organic solvent such as alcohol but not soluble in the water. Propylene glycol monostearate belongs to the non-ionic emulsifier.
APPLICATION
Propylene glycol monostearate is good oil soluble emulsifier which has good property in foaming.
1.Propylene glycol monostearate used in shortening can avoid bread and Baking food from aging. improve the processability
2. Propylene glycol monostearate used in ice cream ,improve the expansibility and conformality.
3. Propylene glycol monostearate used in margarine , Prevent water-oil separation.
4.Propylene glycol monostearate used in cake , Fried food and Compound seasoning.
Propylene Glycol Monostearate is a mixture of the propylene glycol mono- and di-esters of stearic and palmitic acids. It contains not less than 90.0 percent of monoesters of saturated fatty acids, chiefly propylene glycol monostearate (C21H42O3) and propylene glycol monopalmitate (C19H38O3).
Description
Propylene Glycol Monostearate is the main material for making unsaturated polyester resin,and used also as the material for plasticizer, surface, active agent .
Applications:
1. Margarine
Function: Imparts fine and stable water dispersion. Keep smooth texture. Avoid splashing and foaming during frying.
Dosage: 1% of oils and fats
2. Margarine for cake/Shortening
Function: Improve stability. Shorten whipping time. Enlarge cake size and keep homogeneous texture. Prolong shelf life.
Dosage: 1% of oils and fats,usually with DMG
3. Shortening
Function: Adjust oil crystal. Imparts fine and stable water dispersion.
Dosage: 1% of oils and fats
4. Whipping cream
Function: Shorten whipping time. Improve foam volume and structure. Create a nice and stiff foams. Improve mouth feel.
Dosage: 0.5-1%,usually with DMG
5. Cake emulsifier
Function: Enlarge cake volume, improve cake texture and paste stability. Prolong shelf life
Dosage: 5%-15% of total recipe,usually with DMG,Span60 and PGE
6. Cake
Function: Enlarge volume. Keep sponge foams homogeneous. Improve texture and mouth feel. Reduce staling rate of starch. Prolong shelf life.
Dosage: 0.5% of flour,usually using cake gel directly.
7. Bread and pastry
Function: Enlarge volume. Improve texture and prolong shelf life
Dosage: 0.3% of flour,usually using mixed emulsified oils and fats.
8. Ice cream
Function: Improve bulging rate and shape retention. Stabilize foams.
Dosage: 0.3-0.5%,usually with DMG
9. Dairy
Function: Promote dispersing of fats and prevent delamination.
Dosage: 0.2-0.5%,usually with DMG
10. Personal cares
Function: Used in facial cream, improve lubricating property, stability and shape retention..
Dosage: 5-10% of total emuslfier recipe
11. Medicine
Function: Act as emulsifier and stabilizer in cream, paste, suppository in medicine industry.
Dosage: 10-20% in fats and oils
Chemical Properties
Propylene glycol monostearate has a bland odor and taste. It is not a single chemical entity, but is a mixture of propylene glycol mono- and diesters of stearic and palmitic acids. For a detailed description, refer to Burdock (1997).
Preparation
Produced commercially by catalytic transesterification between propylene glycol and a hydrogenated vegetable oil such as soybean oil.
1 Appearance
white flake powder
2 Melting point
40.00 ;to 54.00 ;°C. @ 760.00 ;mm Hg
3 Boiling point
447.00 ;to 448.00 ;°C. @ 760.00 ;mm Hg
4 Acide value
4.00 ;max. ;KOH/g
5 Flash Point
332.00 ;°F. ;TCC ;( 166.67 °C. )
6 Solubility
water, 0.006205 mg/L @ 25 °C (est)
7 Storage
store in cool, dry place in tightly sealed containers, protected from heat and ligh
8 Usage
emulsifiers, surfactants,Could be used as pearling agent or light-screening agent in shampoo,body lotions,Hand Sanitizer，Facial Cleanser.
IUPAC names
2-hydroxypropyl octadecanoate
SYNONYMS:
1932-92-9 [RN]
2-Propin-1-ylpropionat [German] [ACD/IUPAC Name]
2-Propyn-1-ol, 1-propanoate
2-Propyn-1-ol, propanoate [ACD/Index Name]
2-Propyn-1-ol, propionate
2-Propyn-1-yl propionate [ACD/IUPAC Name]
Prop-2-yn-1-yl propionate
Propionate de 2-propyn-1-yle [French] [ACD/IUPAC Name]
142-75-6 [RN]
217-695-3 [EINECS]
2-Propyn-1-ol propanoate
2-propynyl propionate
MFCD00039917 [MDL number]
Prop-2-yn-1-yl propanoate
Prop-2-yn-1-yl propanoate|Propargyl Propionate
Propanoic acid, 2-propynyl ester
PROPARGYL PROPIONATE
PROPARGYL PROPIONATE, 98%
propargyl propionate, 98%,
Propargyl proprionate
Propargylpropionate
Propargylpropionate(Propionicacidpropargylester)
Propionic acid propargyl ester
