Rosemary Extract

Rosemary Extract

Time:2024-05-23 Hits:
Rosemary Extract
Basic Information
The main components of rosemary extract are rosmarinol, rhamnol and rhamnolic acid. The main components of rosemary extract have strong antioxidant activity. It has obvious effect in preventing the oxidation of oil and fat and maintaining the flavor of meat.
Rosemary (Rosmarinus oficinalis L.), also known as the oil Anchor grass, the Department of Labiatae sage plants, evergreen shrubs, native to Europe, North Africa and the Mediterranean coast, in recent years in China, Yunnan, Guangxi, Hainan, Hunan, Sichuan, Guizhou, Fujian and other provinces and regions have been planted. Rosemary is a multi-purpose economic crops, from which can be extracted antioxidants, rosemary essential oil and so on. The main components of antioxidants are diterpenoids, flavonoids, triterpenoids and other compounds with antioxidant function; rosemary essential oil is a liquid oil composed of more than 30 kinds of volatile components.
Rosemary extract has high efficiency, safety and other characteristics, widely used in cosmetics, perfumes, soaps, air fresheners insect repellents, medicine, various animal and plant fats and oils, animal feed, meat products, seafood, flour, sauces, dressings, bakery products, fried products, natural pigments, flavors, biological pesticides, tobacco and other fields, in particular, can be used to treat hematological malignancies, cardiovascular disease, anticancer, inhibition of HIV infection, treatment of indigestion, prevention of Alzheimer's disease, heart disease, hyperuricemia and respiratory diseases, etc., for the production, life has brought a lot of convenience. In Europe, rosemary as a food spice has a long history, has been used in cosmetics, food and pharmaceuticals. Existing research shows that rosemary in the prevention of oxidation of fats and oils, to maintain the flavor of meat, etc. has obvious effects, Japan has developed a series of rosemary antioxidant products;.
Based on their solubility in water, these substances can be categorized into two groups:water-soluble extracts and fat-soluble extracts.

Water-soluble extracts
Water-soluble extracts mainly include rosmarinic acid, chlorogenic acid, caffeic acid, ferulic acid, L-ascorbic acid, hesperidin and iso-hesperidin, etc. The ones that have been researched more include the following.

Rosmarinic acid (rosmarinicacid), that is, (2R)-2-[[(2E)-3-(3,4-dihydroxyphenyl)-1-oxo-2-propenyl]-oxy]-3-(3,4-dihyroxyphenyl)propanoicacid;
Relative molecular formula is C18H16O8, relative molecular mass is 360.31; CAS number is 537-15-5.
Caffeic acid (caffeicacid), chemical name is 3-(3,4-Dihydroxy-phenyl)-2-propenoicacid";
Molecular formula is C9H8O4, relative molecular mass is 180.16; CAS number is 331-39-5.
Ascorbic acid (as-corbicacid), i.e. (5R)-[(1S)-1,2diydroxyethyl]-3,4-dibydroxyfuran-2(5H)-one.
Molecular formula is C6H8O6, relative molecular mass is 176.12, CAS No. is 50-81-7.

Fat-soluble extracts
The fat-soluble extracts include Salvia divinorum acid, Salvia divinorum phenol, oleanolic acid, ursolic acid, naringenin, sesamol, rosmarinol, rosmarinic acid, isorosmarinic acid, 7-ethoxy rosmarinol, 7-methoxy rosmarinol, and so on, and the ones that are more researched at present include the following ones.
Carnosicacid, i.e. (4aR-trons)-1,3,4,9,10,10a-hexahydro-s,6-dihydraxy-1,1-dimethyl-7-(l-methyle-thyl)-4a(2H) phenanthrenecabuxylieacid, is a diterpenoid;
Molecular formula is C20H28O4, relative molecular mass is 332.43, CAS number is 3650-09-7.
Carmosol, also a diterpenoid;
Molecular formula is C20H26O4,, relative molecular mass is 330.42., CAS number is 5957-80-2.
Ursolic acid (ursolicacid) molecular formula for C30H48O3, relative molecular mass of 456.70, CAS No. 77-52-1.
Oleanolic acid (oleanolicacid), is a pentacyclic triterpenoid. Molecular formula is C30H48O3, relative molecular mass is 456.70, CAS number is 508-02-1.
Ursolic acid and oleanolic acid are triterpenoid isomers with similar properties and often exist at the same time, whereas rhamnolic acid can be converted into methyl rhamnate and rhamnol, and rhamnol can be converted into epi-rosemarylphenol. Sclareol can be converted into epi-rosemarylphenol. rosemarinol and 7-methoxyrosemarylphenol.
Rosemary Extract Applications
Rosemary extract is divided into oil-soluble and water-soluble (antioxidants and preservatives)
Rosemary extract, on the other hand, can be categorized into oil-soluble (antioxidant) and water-soluble (antioxidant and preservative), with the active ingredient of the former mainly being rhamnosus acid, and the latter mainly being rosmarinic acid. Oil-soluble antioxidants are mainly used in fats and oils, dairy products, oil-rich foods, confectionery, bakery and other foods. Its role is to prevent the oxidation of fats and oils and oxidative discoloration of food. Because of its excellent thermal stability, it can withstand high temperatures ranging from 190 to 240, so it has strong applicability in the processing of bakery products, fried foods and other foods that require higher temperatures or high temperature sterilization. Water-soluble antioxidants can be widely used in all kinds of beverages, aquatic products, natural water-soluble pigments, the product also has a strong antioxidant capacity, and can withstand high temperatures of more than 100. Its main component, rosemarinic acid, has both antioxidant and antiseptic and antibacterial effects. Antioxidants are additives used to prevent or delay the oxidation of animal and vegetable fats and oils, oil-containing foods, instant noodles, meat products and beverages, etc., to prolong the storage period of the products or to achieve the purpose of preservation of freshness and additives added to food.
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