HA9004 Olive Leaf Extract Powder

Olive Leaf Extract Powder Description

Olive Leaf Extract Powder is characterised as a fine hygroscopic powder ranging from light brown to yellowish, with a distinct bitter taste and herbal aroma. Its primary bioactive constituent is oleuropein, a secoiridoid glycoside typically standardised to 10%–40% concentration, alongside hydroxytyrosol, flavonoids (luteolin, apigenin), and triterpenes (oleanolic acid). Oleuropein decomposes above 60°C but maintains stability in dark, dry conditions below 25°C. It exhibits pH-dependent solubility, dissolving readily in hydroalcoholic solutions but forming colloids in water due to polyphenol aggregation. The compound demonstrates potent free-radical scavenging by donating hydrogen atoms to neutralise reactive oxygen species (ROS), with singlet oxygen quenching efficiency exceeding synthetic antioxidants such as BHT. Hydroxytyrosol enhances mitochondrial function and protects against lipid peroxidation in neuronal and retinal cells. Stability requires protection from UV light and oxygen to prevent oxidation of phenolic rings, while trace metals (e.g., iron) are controlled below 0.5 mg/kg to avoid catalytic degradation. Heavy metals adhere to pharmacopeial limits (lead ≤20 ppm), and microbial contaminants are minimised for oral safety. Analytical profiles confirm interactions between oleuropein and flavonoids that increase bioavailability through pharmacokinetic potentiation.

Olive Leaf Extract Powder Applications

• Pharmaceuticals and Nutraceuticals: Formulated into capsules and tinctures for immune enhancement and resistance to infections. Oleuropein stimulates macrophage activity and inhibits viral replication (e.g., HSV, HIV), reducing cold/flu duration by 1–4 days at 300–500 mg/day. Clinically used for hypertension management by relaxing vascular smooth muscle and lowering systolic pressure by 8–10 mmHg.
• Cosmetics and Personal Care: Integrated into anti-ageing serums and moisturisers at 0.5%–5% concentrations. Oleuropein inhibits collagenase and elastase degradation, reducing wrinkles by 40% and blocking UV-induced DNA damage. Hydroxytyrosol mitigates oxidative stress from pollution, improving skin elasticity and hyperpigmentation in sunscreens and reparative creams.
• Functional Foods and Beverages: Added to health tonics and oils as a natural preservative. Reduces lipid peroxidation in meats by 17.8%, extending shelf life. Combines with vitamin C in functional drinks to enhance antioxidant delivery and endothelial function.
• Agriculture and Biopesticides: Utilised as a biofungicide against crop pathogens (e.g., wheat rust). Oleuropein disrupts insect larval development and fungal growth, offering residue-free protection for organic farming.
• Biomedical Research: Studied for chemopreventive effects in breast and prostate cancers via apoptosis induction. Hydroxytyrosol-nanoparticle complexes explore targeted drug delivery for neurodegenerative disorders.

Olive Leaf Extract Powder Packaging

Our products are packaged in customised cartons of various sizes based on the material dimensions. Small items are securely packed in PP boxes, while larger items are placed in custom wooden crates. We ensure strict adherence to packaging customisation and the use of appropriate cushioning materials to provide optimal protection during transportation.

Packaging: Carton, Wooden Box, or Customised.

Kindly review the packaging details provided for your reference.

Manufacturing Process

1.       Testing Method

(1)    Chemical Composition Analysis - Verified using techniques such as GDMS or XRF to ensure compliance with purity requirements.

(2)    Mechanical Properties Testing - Includes tensile strength, yield strength, and elongation tests to assess material performance.

(3)    Dimensional Inspection - Measures thickness, width, and length to ensure adherence to specified tolerances.

(4)    Surface Quality Inspection - Checks for defects such as scratches, cracks, or inclusions through visual and ultrasonic examination.

(5)    Hardness Testing - Determines material hardness to confirm uniformity and mechanical reliability.

Please refer to the SAM testing procedures for detailed information.

Olive Leaf Extract Powder FAQs

Q1. How soon for blood pressure benefits?

Most users see a systolic pressure drop within 4–6 weeks of 400 mg/day. Pair with magnesium for enhanced effects.

Q2. Does heat destroy its active compounds?

Yes. Degradation occurs above 60°C. Add powder to cold smoothies or yoghurt; never boil. Store below 25°C.

Q3. How to verify oleuropein potency?

Request Certificates of Analysis (CoA) confirming ≥10% oleuropein via HPLC and heavy metals (Pb ≤20 ppm).

Related Information

1.       Common Preparation Methods

Olive Leaf Extract Powder is produced from sustainably harvested Olea europaea leaves, typically dried at ≤40°C to preserve thermolabile oleuropein. Coarsely ground material undergoes extraction with ethanol-water (40%–70% ethanol) at 50–60°C for 4–6 hours via ultrasound-assisted or Soxhlet methods. The crude extract is filtered, concentrated under vacuum at 45°C, and purified through macroporous resin chromatography (e.g., HPD-100) to isolate oleuropein while removing tannins and chlorophyll. The refined liquid is standardised to target oleuropein concentrations (10%–40%) and spray-dried with maltodextrin or silica carriers, yielding a free-flowing powder. Rigorous quality control includes HPLC validation of phenolic profiles, residual solvent testing (ethanol ≤5,000 ppm), heavy metal screening, and microbial analysis.