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Shaanxi Kaishi Biotechnology Co., Ltd
$12
1-199 Kilogram
$10
200-499 Kilogram
$8
≥500 Kilogram
Product Description
Olive Leaf Extract 18% Oleuropein is a standardized botanical ingredient produced from the leaves of the olive tree (Olea europaea), designed for nutraceutical, dietary supplement, and functional formulation applications. Standardized oleuropein content helps buyers define a measurable marker compound for quality control, formulation consistency, and incoming raw material evaluation.
Olive leaves contain oleuropein, a naturally occurring secoiridoid compound associated with the characteristic phytochemical profile of olive botanicals. An 18% oleuropein specification identifies an extract standardized to a defined level of this marker compound, making it more suitable for controlled formulation work than unstandardized olive leaf powder.
The finished ingredient may be supplied as a fine botanical extract powder. Color, odor, solubility, carrier content, and dispersibility can vary with extraction, concentration, drying, and formulation methods. Buyers should evaluate the complete specification and analytical method rather than relying on the oleuropein percentage alone.
Used as a botanical ingredient in capsules, tablets, powdered blends, and other dietary supplement formats. The final formulation should be designed around the intended serving size, total extract content, and oleuropein contribution per serving.
Can be incorporated into multi-ingredient botanical blends where olive leaf extract is selected as part of the product's plant-derived ingredient profile. Compatibility, sensory characteristics, and blend uniformity should be assessed during development.
May be evaluated for selected functional food or beverage concepts where permitted by applicable regulations. Solubility, taste, color, processing stability, and local ingredient-use requirements should be reviewed before commercial application.
| Item | Specification |
|---|---|
| Product Name | Olive Leaf Extract 18% Oleuropein |
| Botanical Source | Olea europaea L. leaves |
| Plant Part | Leaf |
| Product Category | Standardized botanical extract powder |
| Marker Compound | Oleuropein |
| Oleuropein Content | 18% target assay; acceptance limits should be defined in the purchase specification |
| CAS Number | 32619-42-4 (oleuropein) |
| Molecular Formula | C25H32O13 (oleuropein) |
| Molecular Weight | 540.52 g/mol (oleuropein) |
| Appearance | Typically yellowish-brown to brown fine powder; actual shade may vary by extract and processing conditions |
| Identification | Chromatographic comparison with an oleuropein reference standard, as applicable |
| Assay Method | HPLC or HPLC-UV; the validated method and reporting basis should be agreed between buyer and supplier |
| Other Quality Tests | Moisture or loss on drying, ash, microbiological limits, heavy metals, and relevant contaminant testing according to the agreed specification and intended market |
| Solubility | Water dispersibility and solubility depend on extract composition, processing, and any carriers; verify in the intended formulation |
| Carriers or Excipients | May be carrier-free or formulated with permitted processing aids or carriers, depending on the grade; confirm the ingredient declaration for the selected product |
| Common Assay Grades | Olive leaf extracts are available in different oleuropein standardizations, including 10%, 20%, and higher-assay grades; 18% is the target grade for this product |
| Shelf Life | Typically 24 months in unopened original packaging when stored under recommended conditions; follow the product-specific label and quality documentation |
| Storage | Store tightly sealed in a cool, dry place, protected from direct sunlight, heat, and moisture |
| Packaging | Common options include 1 kg and 5 kg sealed barrier bags and 20–25 kg drums or cartons with suitable inner liners |
| Particle Size | Standard or customized mesh options can be selected according to blending, encapsulation, and processing requirements |
| Origin | Olive-growing regions; country of botanical origin depends on the sourced raw material |
| Intended Use | Ingredient for further formulation; not intended to be consumed as a standalone finished product unless appropriately formulated and labeled |
For olive leaf extract, the most useful purchasing distinction is the difference between the stated oleuropein assay and the overall extract composition. Two powders can both be described as 18% oleuropein but differ in extraction profile, carrier content, moisture, sensory properties, and performance during manufacturing.
Check whether 18% refers to the oleuropein content of the supplied powder on an as-is basis or on a dry basis. If moisture is excluded from the assay calculation, the effective oleuropein content per gram of delivered material may differ. Make the reporting basis explicit in the purchase specification.
HPLC-based testing is commonly used to quantify oleuropein. For meaningful batch comparisons, confirm the reference standard, sample preparation, detection conditions, calculation basis, and reporting units. Results from different methods should not automatically be treated as directly equivalent.
At a nominal 18% assay, each 100 mg of extract contributes approximately 18 mg of oleuropein before accounting for assay tolerance, moisture basis, and manufacturing losses. A formulation containing 250 mg of this extract per serving would therefore provide approximately 45 mg of oleuropein at the nominal assay.
For capsules and tablets, evaluate flowability, bulk density, particle-size distribution, moisture, and compatibility with the other ingredients. For powdered drink mixes or food applications, assess dispersion, flavor impact, color, and stability under the intended processing and storage conditions.
In addition to oleuropein assay, specify the identity test, microbiological limits, heavy metals, moisture, and other risk-based contaminant tests relevant to the intended market. The required limits should reflect the finished product category and applicable local regulations rather than relying on the marker assay alone.
Common bulk packaging formats include sealed 1 kg or 5 kg barrier bags and larger 20–25 kg drums or cartons with inner liners. Packaging selection should account for moisture protection, handling, shipping conditions, and the quantity required for production trials or commercial runs.
Keep the extract in its original, tightly closed packaging in a cool, dry environment away from direct light and heat. Minimize repeated exposure to humid air after opening, and follow the shelf-life and storage conditions stated in the product's quality documents.
Olive leaf extract can be considered for contract manufacturing and private-label projects involving capsules, tablets, sachets, and powdered blends. Product development may include serving-size planning, blending, encapsulation or tableting, packaging selection, and label review according to the requirements of the destination market.
Before production, establish the target oleuropein assay, assay basis, excipient declaration, finished-product specifications, packaging format, and required quality documents. Any formulation, labeling, or claim must be reviewed for compliance with applicable regulations.
A robust raw material specification should cover botanical identity, oleuropein assay, appearance, moisture, microbiological quality, heavy metals, and other contaminants identified through a risk assessment. Testing should be performed using suitable methods and acceptance criteria documented for the material and its intended use.
For procurement, review the batch-specific Certificate of Analysis (COA), analytical method, traceability information, and applicable supporting documents. Do not assume a certification, registration, or third-party test applies unless it is documented for the actual product and batch.
It indicates a target concentration of 18% oleuropein in the standardized olive leaf extract. On a nominal as-is basis, 100 mg of extract corresponds to about 18 mg of oleuropein. The actual calculated amount depends on the assay result, reporting basis, and the tolerance defined in the product specification.
No. Olive leaf extract is a botanical preparation containing a mixture of plant constituents, while oleuropein is one specific compound used as a marker for standardization. An 18% oleuropein extract contains oleuropein alongside other extract constituents and any declared carriers or excipients.
HPLC or HPLC-UV is commonly used for oleuropein quantification. Buyers should check the method details, reference standard, calculation basis, and sample preparation to ensure that reported values are suitable for comparison across batches and suppliers.
Yes, it can be evaluated for capsule and tablet formulations. Suitability depends on flow, particle size, moisture, bulk density, blend uniformity, and compatibility with other ingredients. Pilot-scale testing is recommended before commercial production to confirm processing performance and finished-product consistency.
Olive Leaf Extract 18% Oleuropein provides a defined botanical marker specification for supplement and functional ingredient development. For dependable sourcing, evaluate the oleuropein assay together with its reporting basis, analytical method, full quality panel, formulation properties, and storage requirements.
Contact us today to request samples, a COA, technical documents, and a wholesale quotation.
Packaging & Delivery
| Selling Units: | Kilogram |
|---|
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