Olive extract can be divided into olive leaf extract and olive fruit extract. At present, most of the active ingredients on the market are extracted from olive leaves. The active ingredients extracted from olive leaves mainly include: oleuropein, hydroxytyrosol, maslinic acid and oleanolic acid. The main components extracted from olive fruit are olive polyphenols and hydroxytyrosol. It can be seen that hydroxytyrosol can be extracted from both olive leaves and olive fruits.
Olive leaf extract is a substance extracted from the leaves of the olive tree. The raw leaves contain powerful antioxidant compounds such as oleuropein, hydroxytyrosol and other polyphenols and flavonoids. These active ingredients give olive leaves a bitter and pungent taste.
Olive fruit extract, extracted from the pulp of a special Italian olive, this variety is special in that it contains very high verbascoside. The phytonutrient verbascotin, unique to its pulp, is the most potent antioxidant ever found in the olive tree. Olive pomace is a valuable secondary raw material, rich in polyphenols, left over after olive oil production. This study investigated the protective effect of polyphenolic extracts of olive pomace (OPE) on cell viability and antioxidant defense of cultured human HepG2 cells subjected to tert-butyl hydroperoxide (tBOOH)-induced oxidative stress.
What Is The Difference Between Olive Leaf Extract And Olive Fruit Extract?
Olive leaves as raw material:
Hydroxytyrosol in olive leaves is obtained by extracting oleuropein from olive leaves and then hydrolyzing it. The powder content of hydroxytyrosol is 3%-20%; the specifications of the extract are 40% and 50%.
Disadvantages of powder: After hydrolysis of picroside, the content of the extract is about 50%. It needs to add silicon dioxide and adopt microwave drying method. The product has high ash content and is easy to agglomerate. Hydroxytyrosol exists in the form of liquid in nature.
Advantages of powder: It is suitable for customers with high yield, low cost, and no requirements for fluidity and ash content.
Olive Leaf Extract helps treat aging-related problems, stimulates the immune system and treats bacterial infections. The latest discovery about the benefits of this plant's leaf extract is its ability to defend against microbes. This is due to the presence of the compound Ainoate Calcium, which has powerful anti-bacterial and anti-viral effects and is able to stop bacteria and viruses from further spreading the disease.
Olive leaf extract can treat diseases caused by pathogens including colds, flu, herpes, shingles, meningitis, tuberculosis, urinary tract infections, malaria, blood poisoning and surgical site infections. Medical practitioners also believe it helps lower blood pressure and improve blood circulation. In addition, olive leaf extract has the effect of reducing bad cholesterol and increasing good cholesterol.
Olive fruit as raw material:
The hydroxytyrosol in the olive fruit is extracted from the olive pomace after oil extraction, and the content of the extracted hydroxytyrosol is 25%-40%.
Advantages: It adopts the process of extracting and crystallizing, adds dextrin and oven-dries, has low ash content, good fluidity, and is completely water-soluble, suitable for cosmetics and liquid beverages.
Disadvantages: low yield, high cost
Hydroxytyrosol Extract: Fermented olive pomace after oil extraction to obtain an extract with a content of up to 98%.
Olive fruit contains polyphenol antioxidants not found in other common dietary sources. They are structurally distinct from the vitamins, carotenoids, bioflavonoids, proanthocyanidins and other antioxidants found in fruits and vegetables.Hydroxytyrosol is the main antioxidant in olive fruit, and it is believed to play a major role in olive oil's many health benefits.
Emerging research into the ability of dietary nutrients to influence cell signaling has found that olive fruit compounds stimulate molecular pathways of choice. This includes those pathways associated with the production of naturally powerful antioxidants such as glutathione. Targeting cell signaling pathways with hydroxytyrosol has been shown to have protective effects on brain, cardiovascular, skin health and more.
