Loquat Leaf Extract Powder

Loquat Leaf Extract Powder is produced from the leaves of Eriobotrya japonica (Thunb.) Lindl., a Rosaceae botanical commonly known as loquat. The ingredient is supplied as either a concentrated botanical extract or a triterpenoid-standardized extract, making it commercially distinct from loquat fruit powder, fruit extract, and isolated phytochemical ingredients.

Commercial specifications include 10:1 and 20:1 ratio extracts together with standardized grades defined by characteristic pentacyclic triterpenoids. The primary standardized specification is 25% ursolic acid by HPLC, while corosolic acid-standardized options provide an alternative composition profile for projects requiring defined marker content.

SKU: BOT-BEX-0429 Categories: Botanical Extracts, Leaf & Herb Extracts Tags: Antioxidant Support, Dietary Supplements, Flavonoids, Leaf, Loquat Leaf

Ingredient Profile & Common Uses

Loquat leaf extract is derived specifically from the leaf of Eriobotrya japonica, rather than its fruit, seed, or whole-plant material. The leaves contain a characteristic pentacyclic triterpenoid profile including ursolic acid, oleanolic acid, corosolic acid, maslinic acid, and tormentic acid. This gives the ingredient a different chemical and commercial identity from loquat fruit products, which are primarily associated with fruit solids, sugars, organic acids, carotenoids, and other fruit-derived constituents.

Two main specification systems are used commercially. Ratio extracts such as 10:1 and 20:1 describe the concentration relationship between botanical raw material and finished extract. Standardized extracts instead define a quantified triterpenoid marker, with 25% ursolic acid representing a key standardized grade and corosolic acid providing another analytical route. Extract ratio and marker assay therefore describe different product attributes and should not be treated as equivalent specifications.

The ingredient is used in concentrated botanical supplements, multi-herb formulations, powdered nutrition systems, and selected personal-care products. Ratio extracts retain a broader botanical matrix, while standardized materials are selected where formulation, purchasing, or quality teams require a defined marker concentration. Triterpenoid-rich grades have limited true aqueous solubility, making dispersion and uniform distribution important considerations outside dry-dose applications.

Application Areas

Dietary Supplement Capsules

Loquat leaf extract can be incorporated into botanical capsules where concentrated plant material, controlled ingredient identity, and defined extract or marker specifications are required.

Tablets and Compressed Products

The dry extract format is suitable for tablet development after evaluation of powder flow, blend uniformity, compression behavior, and compatibility with formulation excipients.

Botanical Powder Blends

Ratio extracts can be incorporated into multi-botanical powder formulations where a concentrated loquat leaf ingredient is preferred over untreated leaf powder.

Standardized Botanical Formulations

Standardized grades support formulations where a defined triterpenoid assay is required for purchasing specifications, formulation control, or finished-product standardization.

Personal-Care Formulations

The extract can also be evaluated for botanical cosmetic and personal-care systems where triterpenoid composition, powder color, dispersibility, and compatibility with the selected formulation base are relevant.

Typical Specifications

Parameter	Specification
Product Name	Loquat Leaf Extract Powder
Botanical Name	Eriobotrya japonica (Thunb.) Lindl.
Botanical Family	Rosaceae
Common Name	Loquat
Plant Part	Leaf
Ingredient Type	Botanical Extract / Standardized Botanical Extract
Product Form	Powder
Ratio Extract Grades	10:1 · 20:1
Primary Ratio Grade	10:1
Primary Standardized Grade	25% Ursolic Acid
Ursolic Acid Assay Method	HPLC
Corosolic Acid Grades	10% · 20%
Corosolic Acid Assay Method	HPLC
Characteristic Triterpenoids	Ursolic Acid · Oleanolic Acid · Corosolic Acid · Maslinic Acid · Tormentic Acid

Key Constituents & Extract Profile

Loquat leaves contain a chemically distinct pentacyclic triterpenoid fraction. Ursolic acid is one of the principal commercially relevant constituents and occurs alongside oleanolic acid, corosolic acid, maslinic acid, tormentic acid, and related triterpene acids. This constituent profile provides the chemical basis for both broad-spectrum botanical extracts and more analytically defined standardized materials.

Ursolic acid and oleanolic acid are closely related structural isomers and may occur together in the same leaf matrix. For standardized material, chromatographic separation is therefore important when determining individual marker concentration. HPLC provides a more specific analytical approach than a non-selective measurement of total botanical solids.

Corosolic acid provides a second marker within the loquat leaf triterpenoid profile. In standardized extracts, its quantified concentration gives procurement and QA teams a defined compositional reference that cannot be inferred from extract ratio alone. This makes marker-based standardization particularly relevant when reproducible phytochemical composition is more important than raw-material concentration ratio.

Technical & Quality Considerations

Analytical evaluation should begin with botanical identity, correct plant part, and the specification system used for the material. Marker-standardized grades require quantitative analysis of the declared compound, while closely related triterpene acids should be adequately resolved chromatographically. For ursolic-acid-standardized material, distinction from oleanolic acid is particularly relevant because both compounds may occur naturally in the leaf matrix.

Physical behavior can differ substantially between general botanical extracts and materials enriched in hydrophobic triterpenoids. Increasing the proportion of these compounds can affect color, wetting, dispersibility, and aqueous behavior. Standardized grades should therefore be evaluated according to their own physical characteristics rather than assuming that they behave identically to broader ratio extracts.

During formulation scale-up, dry systems should be evaluated for premixing, powder flow, blend uniformity, capsule filling, and tablet compression. Low-inclusion standardized materials may benefit from geometric dilution to improve distribution throughout the finished blend. In beverage powders or other reconstituted systems, R&D should examine wetting, floating, haze, sediment formation, dispersion stability, and potential flavor impact.

Packaging & Commercial Supply

Essencefield supports product evaluation, formulation trials, commercial orders, and ongoing ingredient supply. Packaging, storage, and shipping arrangements are determined by product characteristics, order quantity, stability requirements, and destination-market needs.

Supply Item	General Information
Sample	Available upon request for formulation, testing, and supplier evaluation
Order Quantities	100 g · 1 kg · 5 kg · 25 kg · 100 kg · 500 kg · Bulk
Sample Lead Time	Typically 5–7 days after sample confirmation
Production Lead Time	Typically 15–30 days after order and specification confirmation
Packaging	Suitable protective inner packaging with bags, cartons, drums, or other appropriate outer packaging
Storage	Store in tightly sealed, suitable protective packaging in a cool, dry environment. Protect from moisture, heat, and direct sunlight. Specific storage conditions follow the approved product specification.
Documentation	COA · Product Specification · TDS · SDS · Applicable declarations (as applicable)

Final order quantities, lead times, packaging, documentation, and shipping arrangements are confirmed according to the selected product and commercial requirements.