U.S. Patent #7,297,803

 

Lutein esters know as a powerful antioxidant and a key ingredient for eye health. MicroActive® Lutein Esters is a self emulsifying system transforming the esters into mirco-particles.

 

Studies of bioavailability indicate that MicroActive® Lutein Esters are:

 

1.25 time better absorption than lutein ester in oil

 

1.81 time better absorption than free lutein in oils

 

3.38 times more MicroActive® lutein esters in blood serum than free lutein in oil

 

1.42 times more MicroActive® lutein esters in blood serum than lutein esters in oil

 

All subjects in the small study showed similar increases with MicroActive® Lutein Esters as compared to the esters or free lutein in oil. The results indicated uniform absorption acrosss subjects.

Technical Product Specifications

Source: Marigold oleoresin

Appearance:Reddish waxy powder

Concentration:Not less than 15% lutein esters

Solubility:Insoluble in water, slightly soluble in ethanol, soluble in hexane, ethyl acetate and other hydrocarbon solvents

Quantitative Analysis:Spectrophotometry

λ Maximum (nm): 445nm in hexane

Assay:Not less than 75 % lutein esters and related carotenoids

Heavy Metals:<10ppm

Pesticide Residues (organochlorine, organophosphorus):None detected

Salmonella sps, E.Coli, S. aureus, P. aeruginosa: Not detected

Total Plate Count:Min <10cfu/g Max 100cfu/g

Yeast and Mold:Min <10cfg/g Max 10cfu/g

Storage: Store in original packaging between 10-25oC and protect from light, heat and moisture.

Shelf-life:Shelf-life is over 12months when stored unopened as specified.

Use:Suitable for micro-encapsulation or dispersion in oil

 

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