We supply food-grade OPC proanthocyanidins from dried grape seeds ofVitis vinifera L., standard specification ≥95% proanthocyanidins (UV test), custom assay grades such as 80%, 90% available. Multiple mesh sizes can be selected for solid drink, supplement and compound botanical formulation. Each batch is tested by third-party accredited laboratories to meet international food safety and clean label standards.

• Botanical Source: Dried seeds of Vitis vinifera L.

• Processing Technology: Grape seed selection, cleaning, ethanol/water extraction, concentration, purification, spray drying, sieving, sterilization

• Appearance: Fine reddish-brown powder, uniform texture; mild natural astringent plant aroma, no mould, rancid or burnt odour

• Natural Components: Oligomeric proanthocyanidins (OPC), catechin, epicatechin, gallic acid and other natural polyphenols in grape seed

• Available Types: Grape seed OPC extract powder; ≥95% standard grade, custom content and multiple mesh specifications, organic grade optional

• Handling Feature: Good water dispersibility, easy to mix into solid powder blends, beverage, capsule and tablet formulations

• Key Features: Stable active content, low heavy metal and solvent residue, consistent batch sensory, clean formula, vegan & non-GMO

• Available Certifications: ISO22000, Halal, Kosher, Non-GMO, Vegan compliant; organic grade optional

• Shelf Life: 24 months under sealed, cool, dry and dark storage

Raw Material Natural Characteristics

Vitis vinifera L. belongs to Vitaceae family. Grape seeds are rich in natural polyphenolic substances. Our OPC proanthocyanidins uses mature red grape seeds as raw material, processed by gentle extraction and low-temperature spray drying to retain native polyphenols. This plant-derived extract has stable physical properties and flexible application, fitting the global trend of natural, plant-based and clean-label food & supplement ingredients.

• Natural Plant Source: Harvested from mature red grape seeds from standardized planting bases, free from pulp, skin debris and deteriorated seeds.

• Mild Low-Temp Extraction Process: Ethanol-water extraction avoids toxic solvent, low-temperature drying reduces thermal damage, protecting natural colour and polyphenol components.

• Consistent Quality Standard: Unified purification, content testing and mesh classification guarantee stable potency and colour between batches, convenient for end product formulation.

• Wide Application Flexibility: Fine powder can be directly blended or dispersed in liquid, compatible with most supplement, beverage and food production systems.

Disclaimer: This product is food-grade natural botanical raw material only, for food and dietary supplement formulation and processing. All descriptions only refer to natural material properties and application features. No medical judgement, treatment or health-related claims are made.

Application Fields

With fine powder form, natural plant aroma, stable active content and reliable batch consistency, OPC Proanthocyanidins is widely applied in plant nutrition drinks, solid supplements and food ingredient manufacturing:

• Plant Beverage Formulation: Functional polyphenol drinks, plant-based nutritional beverages, compound berry drinks

• Solid Supplement Blends: Compound nutrition powder, solid beverage, superfood blend, capsule and tablet raw material

• Specialty Food Recipes: Cereal mix, energy bar, baked food and clean-label functional food development

• Food Ingredient Compounding: Compound botanical formulations, clean label food production, natural polyphenol ingredient

• Retail Packing: Bulk raw material for private label retail packaging of grape seed OPC powder

Our Supplier Advantages

We run standardized grape seed cleaning, controlled extraction, purification and spray drying production lines. Stable raw material supply and complete batch QC system ensure stable assay value, low impurities and consistent flavour for bulk export orders.

• Careful Raw Material Selection: Select plump mature grape seeds, remove mouldy, broken seeds and foreign impurities to control quality at source.

• Controlled Gentle Processing: Precisely control extraction, concentration and drying parameters to avoid overheating and oxidation, protect natural OPC components and colour.

• Multi-stage Purification & Sifting: Combine impurity removal, purification, sterilization and powder sieving to reduce foreign matter and coarse particles, improve powder uniformity.

• Full Batch Quality Control: Each batch is tested for proanthocyanidin content, moisture, microbial count, heavy metals and solvent residues before shipment, complying with international export standards.

• Custom Service Available: Support custom assay, mesh size and packaging; COA, MSDS and other export documents can be provided.

Packaging & Storage Guidelines

• Standard Export Packaging: 25kg food-grade aluminium foil lined drum; small trial packs available upon request

• Storage Conditions: Keep in cool, dry, dark and ventilated warehouse, away from high temperature, humidity and direct sunlight.

• Storage Reminder: OPC proanthocyanidins contains polyphenols sensitive to moisture, heat, light and oxygen. Keep tightly sealed after opening to prevent moisture absorption, caking, colour darkening and active component degradation.

FAQ

Q1: What specifications of OPC proanthocyanidins can you supply?

A1: We supply grape seed OPC proanthocyanidins from Vitis vinifera L., standard ≥95% proanthocyanidins (UV), custom 80%/90% grades, multiple mesh sizes, organic grade optional.

Q2: Are there any additives added to your OPC powder?

A2: Our bulk grape seed OPC only undergoes physical extraction and purification. No added sugar, artificial colours, flavours or preservatives, suitable for clean label and vegan production.

Q3: What about sample service, MOQ and lead time?

A3: Samples are available for formulation and quality testing. Regular grades are in stock for prompt shipment. Custom requirements can be negotiated separately.