Description

Chestnut Extract (Castanea Sativa) is a natural botanical extract derived from the seeds of the European chestnut tree, standardized for key active constituents. This extract is valued for its rich content of tannins, flavonoids, and other polyphenolic compounds, offering significant astringent and antioxidant properties. It serves as a crucial ingredient for manufacturers in the nutraceutical, cosmetic, and functional food industries seeking natural, plant-based actives.

Application

• Nutraceutical & Dietary Supplements: Utilized in formulations for vascular health support and as a source of natural antioxidants.
• Cosmetic & Skincare Products: Incorporated into creams, serums, and lotions for its astringent, pore-refining, and skin-tightening benefits.
• Functional Food & Beverages: Used as a natural additive to enhance the polyphenol content and stability of health-focused food products.
• Traditional Herbal Preparations: Serves as a key material in herbal supplements and extracts following traditional use monographs.
• Pharmaceutical Intermediates: Acts as a starting material for the isolation and purification of specific bioactive compounds for further research and development.

Basic Information

Product Name	Chestnut Extract (Castanea Sativa)
CAS No.	84695-99-8
Molecular Formula	Contact for details
Molecular Weight	Contact for details
Synonyms	Castanea Sativa Seed Extract; Sweet Chestnut Extract; European Chestnut Extract; Castanea Vesca Extract; Chestnut Seed Extract; Fagaceae Extract; Tannin-rich Chestnut Extract
EINECS	Contact for details

Quality Control

Our Chestnut Extract is produced under strict quality management protocols. Each batch undergoes comprehensive analytical testing to ensure identity, purity, and consistency. We provide full traceability and Certificates of Analysis (COA) are available upon request, detailing parameters such as assay, heavy metals, and microbiological limits to meet the stringent requirements of our global clientele.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry place at 15-25°C. This material is light-sensitive and easily oxidized; prolonged exposure to air, light, or elevated temperatures should be avoided to maintain stability and efficacy.

Specification

Item	Specification
Appearance	Fine Brown Powder
Identification (HPLC/TLC)	Complies
Assay (Total Polyphenols)	Min. 40% (as Tannic Acid Equiv.)
Loss on Drying	≤ 5.0%
Ash	≤ 5.0%
Heavy Metals (as Pb)	≤ 10 ppm
Total Plate Count	≤ 1000 cfu/g
Yeast & Mold	≤ 100 cfu/g

Note: Specifications can be tailored. Please contact us for the detailed technical data sheet of a specific grade.