RD Health Ingredients sources our Olive leaf extract from Longnan, Gansu Province, Northern China. It is one of olive leaf tree plant base, since Chinese Primie Minister Zhou Enlai emigrated olive leaf tree from Algeria in 1964. Olive leaf planting base in Longnan, has been awarded GI-Specific signs Environmental Area in 2005. Protecting environment, keeping natural resource sustainable development, the control of using pesticide and scientific and organic farming has been applied in this area.
Olive Leaf Extract 
Olive Leaf Extract 
Olive Leaf Extract 
Olive Leaf Extract
composition of olive leaf
Olive leaf mainly contains oleuropein, hydroxytyrosol, oleanolic acid, and some other pholyphenols. In recent supplement products, mainly choose oleuropein as main bioactive and hydroxytyrosol, also has been As A Novel Food Pursuant To Regulation (EC) No 258/97. Check about Hydroxytyrosol here.
Oleuropein
In the early 1900s scientists isolated a bitter compound called oleuropein from olive leaf that was thought to give the olive tree its disease resistance.
In 1962 an Italian researcher recorded that Olive leaf Oleuropein had the ability to lower blood pressure in animals. It dilates the blood vessels so that blood may flow more easily throughout the system. Other European researchers validated that claim and also found it to increase blood flow in the coronary arteries, relieve arrhythmia and prevent intestinal muscle spasms.
- CAS No.: 32619-42-4
- EINECS No.: 251-129-6
- Chemical Name: [2S-(2,3E,4)]-3-Ethylidene-2-( -D-glucopyranosyloxy)-3 4-dihydro-5-(methoxycarbonyl)-2H-pyran-4-acetic acid 2-(3,4-dihydroxyphenyl)ethyl ester
- Molecular Formula: C25H32O13
- Molecular Weight: 540.4
- COSING REF No: 35644
- Chem/IUPAC Name: Olea Europaea Leaf Extract is the extract of the leaves of the Olive, Olea europaea L., Oleaceae
| Product | Specification | Extraction/ Drying method |
| Olive Leaf Extract – Oleuropein 8%, 12% | Country of Origin: China Part used: Leaf Appearance: brown to yellow powder Solubility: Water Soluble Testing method: HPLC Certifications: Halal, Kosher. Food grade. | Hot water extraction Instantaneous Spray-drying |
| Olive Leaf Extract – Oleuropein 40% | Appearance: brown yellow fine powder Solubility: Slightly Water Soluble Testing method: HPLC Certifications: Halal, Kosher. Food grade. | Hot Water and Ethanol Solvent extraction Vacuum-dried / Spray Drying |
| Olive leaf extract – Oleuropein 70% ~80% | Appearance: yellow fine powder Solubility: Slightly Water Soluble Testing method: HPLC Certifications: Halal, Kosher. Food grade, cosmetic Grade | Hot Water and Ethanol Solvent extraction Vacuum-dried / Spray Drying |
| Extraction/ Drying method: Hot Water and Ethanol Solvent extraction Vacuum-dried/ Spray Drying. |
| Application: Olive Leaf extract can be applied in Functional Foods, Beverages, Dietary Supplements, Herbal blends, Tablets/Capsules, Cosmetics. |
| Storage and Package: Keep in cool and dry place, out of direct light and heat; in 25kg/drum, plastic bag inside, or 1kg/aluminum foil bag; Shelf life: 24 months within proper storage. |
RD Health Ingredient Olive leaf extract is tested by the third party test Eurofins testing, for heavy metals, pesticides, microbiology test, solvent residual etc. Our olive leaf extract is 100% complied with EP, USP, BP, and also complied with the food grade regulation.
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