Detailed Product Description

Oleuropein

Product Name: Oleuropein

Mol.Formula:  C₂₅H₃₂O₁₃                                                     

Mol. Weight:   540.52                                     

CAS No.: 32619-42-4

Botanical Source: Olive Leaf

Purity: >6%,10%, 12% , 15% , 18% , 20%,35% by HPLC

Oleuropein is a chemical compound found in olive leaf from the olive tree together with other closely related compounds such as 10-hydroxyoleuropein, ligstroside, and 10-hydroxyligstroside. All these compounds are tyrosol esters of elenolic acid that are further hydroxylated and glycosylated. Oleuropein and its metabolite hydroxytyrosol have powerful antioxidant activity both in vivo and in vitro and give extra-virgin olive oil its bitter, pungent taste. Oleuropein preparations have been claimed to strengthen the immune system.

Hydroxytyrosol

Synonyms: 3-Hydroxytyrosol;  3,4-dihydroxyphenylethanol;4-(2-Hydroxyethyl)-1,2-benzenediol

Mol. Formula:  C₈H₁₀O₃                                                   

Mol. Weight:   154.16                                     

CAS No.: 10597-60-1

Botanical Source: Olive

Purity: > 2.5%, 5%, 6%, 8% , 10%, 20% ,30%  ,95% , 98%  by HPLC

Hydroxytyrosol is a phytochemical. It has antioxidant properties. After gallic acid, hydroxytyrosol is believed to be one of the most powerful antioxidants. Its oxygen radical absorbance capacity is 40,000 umolTE/g , which is ten times higher than green tea, and two times higher than CoQ10.[citation needed]

Hydroxytyrosol is found in olive oil in the form of its elenolic acid ester oleuropein and, especially after degradation, in its plain form. Both compounds, along with oleocanthal, are responsible for the bitter taste of extra virgin olive oil. The olives, leaves and olive pulp contain a little levels of hydroxytyrosol, most of which can be recovered to produce hydroxytyrosol extracts.

Studies have showed that a low dose of hydroxytyrosol reduces the consequences of sidestream smoke-induced oxidative stress in rats.