Red Vine Leaf Extract Powder

Red vine leaf extract powder comes from the leaf of Vitis vinifera L., the wine grape, taken from red-fruited varieties whose leaves turn red in autumn, and not from the seed or skin of the berry. The leaf is extracted in water, and the liquor is concentrated and dried into a red-brown powder.

The extract ratio is 10:1, the powder is milled to 80 mesh, and it is water dispersible. It carries no proanthocyanidin figure, so it differs from the grape seed extract, the grape skin extract and the OPC-defined grape seed grade.

SKU: BOT-BEX-0540 Category: Botanical Extracts Tags: Dry Blends & Premixes, Grape, Leaf & Herb, Plant Extracts, Water Dispersible, Water Extracted

Red Vine Leaf Source & Identity

Vitis vinifera L. is a woody climber of the grape family (Vitaceae) grown for wine, table fruit and raisins. The part used here is the leaf. In red varieties, and especially in the so-called teinturier types, the leaves turn red as the season ends because they accumulate anthocyanin pigments, which is the origin of the trade name red vine leaf. The seed, the berry skin and the pomace are other parts of the vine and have their own extracts. The leaf contains flavonol glycosides such as quercetin glucuronide and isoquercitrin, proanthocyanidins, caffeic and tartaric acid esters and anthocyanins. These groups are named without numbers.

Red Vine Leaf vs Seed & Skin

Form	What It Is	Choose It When
10:1 Red Vine Leaf Extract	Water-extracted, concentrated and dried grape leaf	A leaf-based extract in a dispersible powder
Grape Seed Extract Powder	Water extract of the grape seed	A seed-based extract is specified
Grape Skin Extract Powder	Water extract of the grape skin	A skin-based extract is specified
Grape Seed Extract 95% OPC / Proanthocyanidins	Extract defined by an OPC content range	A stated OPC level is specified

A 10:1 ratio reports how much dried leaf went into each unit of extract and is not a flavonol or OPC figure. The vine yields three quite different raw materials, and the leaf is the one that holds flavonol glycosides, while the seed is the OPC-bearing part and the skin carries berry anthocyanins. Water extraction takes up the leaf’s soluble glycosides and phenolic acids and leaves the cellulose-rich leaf matrix behind. The resulting powder is red-brown and mildly astringent. Buyers who need seed-derived OPC should use the seed grades, and buyers who specify the leaf should use this extract.

Typical Specifications

Specification Item	Product Information
Latin Name	Vitis vinifera
Plant Part	Leaf & Herb
Processing	Water Extraction
Common Name	Red Vine Leaf, Grape Leaf
Ingredient Type	Ratio Extract
Extract Ratio	10:1
Appearance	Red-Brown 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

Capsules for Leaf Extract Blends

Red vine leaf extract powder is filled into capsules alone or beside other leaf and fruit extracts. The powder is fine and slightly cohesive, so check fill-weight uniformity on the machine and keep the filling room dry.

Instant Drink Powders with Fruit Notes

In instant drink powders, the extract gives a red-brown, hazy dispersion with a mild, tea-like and slightly astringent taste. Grape, cherry and hibiscus flavors fit its color, and the powder dissolves best in a small volume of warm water first.

Tablets with Polyphenol Leaves

The extract compresses with a dry binder and a disintegrant, alone or in a granulate with similar extracts. Tannins bind iron and can darken the blend, so avoid iron-containing contact surfaces and review the tablet color over a short stability run.

Stick Packs with Berry Flavors

In stick packs, red vine leaf extract combines with a soluble base and a berry flavor that echoes its red tone. A little acid brightens the color, while neutral drinks make the shade duller and browner.

Formulation Notes

The powder is red-brown with a gentle, leafy aroma and a dry, mildly astringent taste. In water, red vine leaf extract forms a red-brown, slightly hazy dispersion whose shade depends on pH: it is brighter in acidic drinks and duller toward neutral. Heat and strong light fade the red pigments slowly.

Damp air makes the powder cake, because tannins and glycosides hold moisture. Mix it into a larger carrier fraction ahead of the main blend to limit static and lumps, and use barrier film for sachets. Opened containers should be sealed tightly with the air pressed out, and kept away from heat and direct light.

Red vine leaf extract changes color with the season of harvest, because red-leaf pigments build up late in the year, so autumn leaf gives a redder powder and summer leaf a browner one. A red vine leaf lot is best matched to the color target of the drink or tablet by a bench trial before scale-up.

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.