Grape Seed Extract Powder

Seeds recovered as a by-product of winemaking and juice pressing, from Vitis vinifera, are the starting material for this grape seed extract. Water extraction concentrates the soluble seed fraction of Vitis vinifera, and the liquor is dried to a light yellow powder.

This 10:1 ratio extract of grape seed carries no proanthocyanidin percentage figure. It is water dispersible and milled to 80 mesh. The OPC-standardized extract, the grape skin extract and the red vine leaf extract are separate products from other parts of the vine.

SKU: BOT-BEX-0029 Category: Botanical Extracts Tags: Bars & Bakery, Grape, Gummies & Chews, Plant Extracts, Seed & Grain, Water Extracted

Vitis vinifera Seed Identity & Plant Part

The botanical entity is Vitis vinifera L., the European wine grape of the vine family. The part used is the seed, a hard, tannin-rich kernel found inside the berry. Skins, pulp, stems and leaves are not included in this grape seed extract. Seeds come from the pomace left after winemaking or juice pressing and are dried before processing.

The vine yields quite different extracts, and the part decides which one a buyer gets. Skin is the anthocyanin-bearing part in red varieties, and leaf is the flavonol-bearing one, while the seed is the source of the proanthocyanidin material. A line reading only “grape extract” leaves open which of the three is meant, so the seed has to be named.

Grape Seed Extract vs Skin & Leaf

Form	What It Is	Choose It When
10:1 Grape Seed Extract	Water-extracted, concentrated and dried V. vinifera seed	A dispersible seed extract without a marker is wanted
Grape Seed Extract 95% OPC / Proanthocyanidins	Standardized seed extract with a defined proanthocyanidin level	The specification names an OPC figure
Grape Skin Extract Powder	Extract of grape skins	A skin-based, anthocyanin-bearing extract is the brief
Red Vine Leaf Extract Powder	Extract of red grapevine leaf	A leaf-based extract is requested

Seed is the part on which the OPC grade above is built. The 10:1 ratio only says the seed fraction was concentrated, so it gives no proanthocyanidin value, and two seed extracts at that ratio can differ widely in that respect. A label that must carry a proanthocyanidin figure needs the OPC extract.

Where grape seed identity and a dispersible, astringent powder are enough, this ratio extract is the simpler choice. The skin extract brings anthocyanin color and the leaf extract a flavonol profile, so neither can replace seed in a formula. An offer for “grape extract” that does not name the part cannot be compared with this one.

Typical Specifications

Specification Item	Product Information
Latin Name	Vitis vinifera
Plant Part	Seed & Grain
Processing	Water Extraction
Common Name	Grape Seed
Ingredient Type	Ratio Extract
Extract Ratio	10:1
Appearance	Light Yellow powder
Solubility / Dispersibility	Water Dispersible
Quality Parameters
Moisture (LOD)	≤5.0%
Total Ash	≤5.0%
Particle Size	80 mesh
Heavy Metals	Lead ≤2 ppm · Arsenic ≤1 ppm · Cadmium ≤1 ppm · Mercury ≤0.1 ppm
Microbiology	TPC ≤1,000 cfu/g · Yeast & Mold ≤100 cfu/g · E. coli Negative · Salmonella Negative/25 g
Shelf Life	24 months in unopened original packaging, cool and dry storage

Application Areas

Tannin-Aware Capsule Fills

Capsules take this powder after a flow check, and an opaque shell shields the tannin fraction from light. Because tannins bind proteins, a capsule blended with protein powders or gelatin-based components deserves a disintegration test on aged samples.

Taste-Masking Tablet Coats

Grape seed tablets are usually film coated, since the astringent taste is unpleasant if a tablet is chewed or dissolves in the mouth. The coat also screens the surface from air and light, which slows the browning that tannin-rich compacts show on storage.

Dry Drink Mixes

Powder mixes use the extract in small amounts because its astringency is noticeable. Sweetener, acid and fruit flavors soften the dry mouthfeel, and juice-style bases hide the mild haze the extract can give in water.

Gelatin Gummy Premixes

Tannins bind gelatin, so a gummy mass containing the extract may firm or turn cloudy where the two meet. The extract goes in as the batch cools, and a small trial with the intended gelling agent comes before scale-up.

Cocoa-Masked Bar Premixes

Bar premixes carry the extract in the dry blend, where its light yellow color hardly affects the look of the bar. The astringent edge is the limiting factor, and cocoa, nut or dried-fruit flavors cover it best.

Formulation Notes

The powder is light yellow with a faint woody aroma and a markedly astringent, slightly bitter taste. In water it disperses to a pale, lightly hazy liquid. Tannins bind proteins, so dry blends with protein powders or gelatin can show haze or firming once liquid is added, and the finished base should be tested for it.

Polyphenols oxidize on exposure to air and light, so the powder slowly darkens toward brown. Opaque packaging helps, and iron tools should be kept away because iron forms dark complexes with tannins. Blend the extract into a small part of the filler first so that the pale, fine powder does not streak a larger batch.

Sieve before filling and watch flow in the hopper, since the powder is slightly hygroscopic. After opening a container, reseal it and keep light and air out: the tannin fraction browns first, so a darkening lot usually shows it before any lumps form.

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.