Name | glycerol laurate |
Synonyms | GML glycerol laurate alpha-Monolaurin Glycery Monolaurate Glycerin 1-monolaurate glucerolalpha-monolaurate lauricacid1-monoglyceride 1-monolauroyl-rac-glycerol Glycerol alpha-Monolaurate lauricacidalpha-monoglyceride 1-monododecanoyl-rac-glycerol 2,3-dihydroxypropyl dodecanoate dodecanoicacidalpha-monoglyceride dodecanoicacid2,3-dihydroxy-propylester Dodecanoicacid,2,3-dihydroxypropylester |
CAS | 142-18-7 |
EINECS | 205-526-6 |
InChI | InChI=1/C15H30O4/c1-2-3-4-5-6-7-8-9-10-11-15(18)19-13-14(17)12-16/h14,16-17H,2-13H2,1H3 |
Molecular Formula | C15H30O4 |
Molar Mass | 274.4 |
Density | 0.9764 (rough estimate) |
Melting Point | 63 °C |
Boling Point | 186 °C / 1mmHg |
Flash Point | 135.6°C |
Water Solubility | 6mg/L |
Solubility | Practically insoluble in water |
Vapor Presure | 5.75E-08mmHg at 25°C |
Appearance | Crystalline powder |
Color | White to Almost white |
BRN | 1726740 |
pKa | 13.16±0.20(Predicted) |
Storage Condition | -20°C |
Refractive Index | 1.4350 (estimate) |
MDL | MFCD00037815 |
WGK Germany | 1 |
RTECS | OF1600000 |
Reference Show more | 1. Hu Junjie, Li Yan, Cui Huanhuan. Effect of single and double fatty acid glycerides/phospholipids on bioavailability of fat-soluble nutrients in infant formula milk emulsion [J]. Food and machinery, 2020,36(09):33-37 42. 2. [IF = 4.244] Pengfei Liu et al."Effects of glycerides with different molecular structures on the properties of maize star and its film forming capacity." Ind Crop Prod. 2019 Mar;129:512 3. [IF = 7.514] Xiaolei Zhang et al."Ultrasonication effects on physicochemical properties of starch-lipid complex." FOOD CHEMISTRY. 2022 Sep;388:133054 |
EPA chemical information | Information provided by: ofmpub.epa.gov (external link) |
use | glyceryl laurate, also known as glyceryl diosyl (glycerol monolaurate, GML for short), is an excellent food emulsifier and preservative. it was first selected by Kabara and others as a new safe and efficient antibacterial agent, and was officially approved as GRAS food additive by FDA in 1977. Glyceryl laurate is not only an excellent emulsifier, but also a safe and efficient broad-spectrum antibacterial agent. It is not limited by pH. It still has good antibacterial effect under neutral or slightly alkaline conditions, especially suitable for special oil industry. Application. |
preparation | (1) using lower alcohol sodium or lower alcohol potassium as catalyst, lauric acid lower alcohol ester and glycerol mixed at a molar ratio of 3:1, under the condition of 150-170 ℃ vacuum reaction 20-40h to obtain lauryl ester crude;(2) Use citric acid aqueous solution with 40-50% of the weight of the crude glycerol laurate and a mass fraction of 4%-10% to wash the crude glycerol laurate once, then add 80-100 ℃ hot water with the weight of 30%-50% of the crude glycerol laurate, stir evenly, let stand and layer, separate the upper oil, then use 80-100 ℃ hot water, wash three times, and heat and reduce pressure to remove water;(3) at a temperature of 130-220 ℃, the product of step (2) is molecularly distilled under the condition of a vacuum degree of 0.1-150pa to obtain a laurate product. |