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Rosemary Extract Carnosic Acid Liquid

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Brand: NaturAntiox

Catagories: Plant Extract

Latin Name: Rosmarinus officinalis

Part used: Rosemary Leaf & Veg Oil

Specification: 1%~20% HPLC

Appearance: Yellow Brown Powder

Solubility: Oil Soluble & Water Dispersible

CAS NO.: 3650-09-7

Efficacy: Natural Antioxidant

Application: Food, Feed, Cosmetic, Pet Food

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Rosemary Carnosic acid liquid, also know as Rosemary Oleoresin or  Rosemary Oil Extract , is an oil soluble, natural, stable by (high temperature resisting), non-toxic liquid and mainly used to retard rancidity in natural oils, it can also be added into the oil and fatty food, functional food, cosmetics and so on. Its potent antioxidant properties are attributed in large part to carnosic acid, one of its major constituents. Rosemary Oleoresin is available with varying levels of carnosic acid, which is a kind of naturally occurring phenolic compound with antioxidant properties. It is considered to be a high effect, natural and oil-soluble antioxidant. 


Specification: 5%,10%,15% HPLC
Description: Light brown liquid 
Carrier Oil: Sunflower Seed Oil or customized
Solvent Used: Water, Ethanol
Carrier Oil: Sunflower seed oil
Part Used: Rosmeary leaf
Cas No:.3650-09-7


a. A natural antioxidantin oil form, which is be widely used in oil, fat-containing food, cosmetic industry etc. As a natural green additives to prolong shelf life.
b. It can prevent or delay the oxidation process of the oil and fatty food, improve the stability of food and extend the storage time, it also can be used as condiment of the meat and fish.

c. Stored or used at room temperature should not be exposed to bronze and iron for a long time,and at high temperature (80℃above) should not be exposed to bronze and iron.b.Should not be used in alkaline conditions. 

d.It will perform better if used together with vitamin E or organic acids (such as citric acid, vitamin C, etc.d.Make sure to mix up when use it.


a.Select from 100% natural Rosemary with a special process.
b.Water and ethanol as solvent,ensures the safety of the product.
c.Low ash,impurity,heavy metal,solvent residue and pesticide residue.
d.Complete product tracing system and technical service.


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We could not find any corresponding parameters, please add them to the properties table

Appearance* :   Viscous brown or amber liquid    
Odor  :  Very slight rosemary odor    
Solubility  :  oil soluble    
Extraction Solvent :   Ethanol, Hexane     
Carrier Oil :   Sunflower seed oil    
Active Compounds :   Carnosic Acid and Carnosol    
Water(Kf)    <5.0%    
Antioxidant/Volatiles Ratio**   ≥15    

Lead    ≤2ppm    
Arsenic    ≤3ppm    
Mercury    ≤1ppm    
Cadmium    ≤1ppm    
Solvent Residue Ethanol    <500ppm    
Residual Hexane    <25ppm    

Total Plate Count    ≤ 1,000 CFU/g
Yeast and Mould    ≤ 100 CFU/g
E. Coli    Negative/g
Salmonella spp    Negative/25g
Enterobacteriaceae    Negative 
Coliforms    Negative/g

*Color variations may occur from batch to batch
**(Total % w/w of carnosic acid and carnosol)/volatiles  (Volatiles: Borneol, Bornyl Acetate, Camphor, 1,8-Cineol, Verbenone)


1. What is rosemary extract? How about the antioxidative properties?

The extract is from rosemary (Rosmarinus officinalis Linn.), a common household plant that has grown in the Alps since the middle Ages, and is now found throughout the world. Rosemary has been used for thousands of years as a savory spice, food preservative, in cosmetics and hair products, and as an herbal medicine for a variety of health disorders. Until now however, the exact chemical pathways involved in its beneficial effects have remained unknown.

Carnosic acid, carnosol and rosmarinic acid are the most active compounds of rosemary extract found to have powerful antioxidant activity, and carnosic acid is considered as one of the only antioxidant that deactivates free radicals through a multilevel cascade approach.


2. "Natural antioxidants are less effective than synthetic ones."
Numerous reports in literature as well as our internal studies confirm that in fact rosemary antioxidants are in most applications more effective than vitamin E (synthetic), BHA, BHT, TBHQ and others. In addition to that, rosemary antioxidants are much more high temperature resistant, and its use enables customers to keep clean label on their products and there is no allergen issue.


3.Why take rosemary extract?

 There are lots of excellent antioxidants that combat free radical damage. However, rosemary extract contains more than two dozen antioxidants, and provides potent protection against chronic diseases, including Alzheimer’s, one of the most dreaded diseases of today. 

  • Provides powerful antioxidant protection
  • Protects brain cells from the normal effects of aging
  • May slow down the progression of Alzheimer’s disease
  • Protects cells from carcinogens
  • Inhibits growth of cancer cells
  • Helps reduce allergy symptoms, especially to dust mites
  • Increases potency of vitamin E
  • Helps reduce hypertension
  • High Temparature Durable Antioxidant

4. What makes rosemary extract so special?

Antioxidants have been proven to deactivate free radicals, but not all antioxidants are equal. In most cases, once an antioxidant has neutralized a free radical it is no longer useful as an antioxidant because it becomes an inert compound. Or even worse, it becomes a free radical itself.

 That’s where rosemary extract is significantly different. It has a longer life span of antioxidant activity. Not only that, it contains more than two dozen antioxidants, including carnosic acid, one of the only antioxidants that deactivates free radicals through a multilevel cascade approach.


5. "What services you can provide?”
To establish long-term cooperation with customers, thus we will provide you the best both Before-Sales and After-Sales Service.
Before-Sales Service
1. A small amount of free samples;
2. Strong technical supports from our factory and research Center;
3. Suggest appropriate solutions to your project.
4. Full set of technical data, as CoA, MoA, MSDS, Process Flow, Test Reports, etc.
After-Sales Service
1. Provide information of your shipment in-time;
2. Assistance on the customs clearance;
3. Confirm the intact commodity received;
4. Perfect product tracking system and service;
5. The quality problem of goods is responsible by us

Pls leave a message or contact Email: export@geneham.com or Call me!Skype

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