The main components of rosemary extract powder are rosemaryol, carnosol and carnosic acid. , Several main components of rosemary extract have strong antioxidant activity. It has obvious effects in preventing oil oxidation and maintaining meat flavor. The main components are rosemary phenol, carnosol and carnosic acid.
Rosemary (Rosmarinus oficinalis L.), is a small evergreen shrub of the genus Lamiaceae, native to Europe, North Africa and the Mediterranean coast. Rosemary is a multi-purpose cash crop from which antioxidants, rosemary essential oil, etc. can be extracted. The main components of antioxidants are diterpenoids, flavonoids, triterpenoids and other compounds with antioxidant functions.
Part Used: leaf
Specification: 3%-95%Carnosic acid;
5%,10%,20%,30% Rosemarinic acid;
20%,25%, Ursolic acid
Appearance: brownish yellow fine powder
Test Method: By HPLC
The major compounds in rosemary extract includes carnosol, rosemary dialdehyde, epi-rosmary phenol, epi-rosmary phenol methyl ether, carnosic acid, methyl carnosate, rosemary phenol, ursolic acid , terpenoids such as oleanolic acid, flavonoids such as apigenin, hesperetin, psyllium, floridin, phenolic acids such as vanillic acid, caffeic acid, rosmarinic acid, and ferulic acid, and Contains alpha-pinene, tricyclic terpenes, p-cymene, limonene, 1,8-cineole, borneol, camphor, alpha-terpineol, beta-terpineol, terpinen-4-ol other ingredients of rosemary essential oil.
Water soluble compound
Oil soluble compound
Ursolic acid and oleanolic acid are triterpenoid isomers with similar properties and often exist at the same time, while carnosic acid can be converted into methyl carnosate, carnosol, and carnosol can be converted into For the table rosemary phenol. Rosemary phenol and 7-methoxy rosemary phenol.
How to make
Heat reflux extraction method: Rosmarinic acid is an acid containing polyphenolic hydroxyl groups, easily soluble in water and ethanol aqueous solution, insoluble in oil and absolute ethanol. According to its solubility characteristics, water or ethanol can be selected as the solvent for extraction.
Extraction process (taking the extraction from rosemary as an example): the material is crushed to 20 mesh, and 15% ethanol solution is used to extract 4 times, each time is 1h, and the yield rate of rosmarinic acid is 94.37%
At present, rosemary extract powder is mainly used in food antioxidants and preservatives.
Dried rosemary leaves have a long history as a food spice. Modern research shows that the non-volatile components of rosemary perform well as antioxidant.
The antioxidant activity of its main active ingredient carnosol is comparable to that of BHA. The antioxidant activity of phenol is 5 times that of BHT and BHA.
It is a new generation of pure natural antioxidants, completely avoiding the toxic side effects of synthetic antioxidants and the weakness of high temperature decomposition.
Toxicological experiments and high-temperature frying experiments proved that the product is of safe, high efficient, heat resistant and broad-spectrum bactericidal.
Rosemary extract has the characteristics of high efficiency and safety, and is widely used in cosmetics, perfume, soap, air freshener, insect repellent, medicine, various animal and vegetable oils, animal feed, meat products, seafood, flour, seasoning sauce, seasoning Ingredients, baked goods, fried products, natural pigments, flavors, biological pesticides, tobacco and other fields.