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Grape Seed Extract – Proanthocyanidins
Grape seeds are the seeds of grapes, typically a byproduct of the wine industry. After being dried and separated, they contain components such as oligomeric proanthocyanidins (OPCs), linoleic acid, vitamins, and minerals. Among these, OPCs exhibit significantly stronger antioxidant activity than vitamins C and E, helping to neutralize free radicals and slow down aging. They also provide protective effects on the cardiovascular system, skin, and nervous system, and are widely used in health supplements, skincare products, and edible oils.
Category:
Application Areas
Pharmaceutical Raw Materials
Product Series
Natural Active Monomer
Health Supplement
Standardized Extract
Plant Concentrate Powder
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- Product Description
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- Commodity name: Grape Seed Extract – Proanthocyanidins
Grape seeds are the seeds of grapes, typically a byproduct of the wine industry. After being dried and separated, they contain components such as oligomeric proanthocyanidins (OPCs), linoleic acid, vitamins, and minerals. Among these, OPCs exhibit significantly stronger antioxidant activity than vitamins C and E, helping to neutralize free radicals and slow down aging. They also provide protective effects on the cardiovascular system, skin, and nervous system, and are widely used in health supplements, skincare products, and edible oils.
I. Basic Product Information
Project
Content
Product Name
Grape seed extract – Proanthocyanidins 95%
English name
Grape Seed Extract – Procyanidin 95%
Latin name
Source
Grape seeds of the grape family
Active ingredient
Proanthocyanidins
Product Specifications
95%
Detection method
UV
Product characteristics
Purple-red powder
Solubility
Easily soluble in water, methanol, and ethanol; soluble in ethyl acetate; insoluble in diethyl ether and chloroform.
II. Product Introduction
1. Source
Grape seed extract—proanthocyanidins—is a highly purified active ingredient produced from grape seeds. After the seeds are dried and the grape skins and pulp are separated, the extract is processed through a series of steps: grinding, extraction, filtration, concentration, and purification. This process preserves the structural integrity and biological activity of the original proanthocyanidins.
2. Core Efficacy and Applications
(1) The pharmaceutical field
Proanthocyanidins found in grape seed extract possess antioxidant properties, enabling them to scavenge free radicals in the body and protect cells from oxidative damage. In related fields, they can be used as an adjunct to help improve lipid profile health and exhibit bioactive effects associated with immune modulation. Their relevant characteristics hold considerable research potential in the regulation of inflammatory responses.
(2) Food sector
As a natural antioxidant, grape seed extract can be used in foods such as juices, fruit wines, dairy products, baked goods, and confectionery. It helps delay food oxidation and spoilage, thereby extending shelf life and aligning with the trend toward natural and healthy food consumption.
(3) Cosmetics field
Grape seed extract—proanthocyanidins—possess antioxidant properties that can neutralize free radicals in the skin. They have certain applications in improving skin hydration and reducing hyperpigmentation, and can be used in the formulation of skincare products and other cosmetics.III. Technical Specifications and Testing Standards
Testing items
Testing standards
Test results
Detection method
Specifications
≥95.0%
95.2%
UV
Characteristics
Purple-red powder
Purple-red powder
Visual inspection
Smell
Unusual odor
Unusual odor
Sensory evaluation
Granularity
99% passes through an 80-mesh sieve.
99% passes through an 80-mesh sieve.
Sift
Heavy metals
≤20 ppm
<20 ppm
AAS
Lead
≤2 ppm
<2 ppm
AAS
Arsenic
≤2 ppm
<2 ppm
AAS
Moisture
≤5.0%
2.35%
Constant-temperature drying method
Ash content
≤5.0%
1.10%
High-temperature incineration method
Total colony count
≤1000 CFU/g
80 CFU/g
Plate Count Method
Mold yeast
≤100 CFU/g
20 CFU/g
Plate Count Method
Escherichia coli
Not detectable
Not detectable
Selective medium method
Salmonella
Not detectable
Not detectable
Selective enrichment method
IV. Packaging and Storage
1. Packaging specifications
● Small packaging: Sterile aluminum foil pouch (lined with a double-layer polyethylene bag)
● Large packaging: 25 kg cardboard drum (lined with double-layer polyethylene bags, drum lid sealed);
● Export packaging: Packaging available upon request.
2. Storage conditions
● Storage conditions: Store in a sealed, cool, and dry place (temperature ≤25℃, relative humidity ≤60%), and avoid direct sunlight, high temperatures, and humidity.
● Shelf life: 24 months when stored under appropriate conditions and the package remains unopened.
● Transportation precautions: Handle with care and avoid crushing or damage; during transportation, protect from sunlight and moisture.
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Contact Information
Office Address: Room 301, Building 3, Oriental Plaza, Nanerhuan East Sec, Beilin District, Xi'an City, Shaanxi Porvince, China
Factory Address: No. 16, East Area, Hongqing Industrial Park, Baqiao District, Xi'an City, Shaanxi Province, China
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