[Latin Name] Vitis vinifera Linn

[Plant Source] Grape seed from Europe

[Specifications] 95%OPCs；45-90% polyphenols

[Appearance] Red brown powder

[Plant Part Used]: seed

[Particle size] 80 Mesh

[Loss on drying] ≤5.0%

[Heavy Metal] ≤10PPM

[Pesticide residue] EC396-2005, USP 34, EP 8.0, FDA

[Storage] Store in cool & dry area, keep away from the direct light and heat.

[Shelf life] 24 Months

[Package] Packed in paper-drums and two plastic-bags inside.

[Gerneral feature]

1. Our product has passed the ID test by ChromaDex, Alkemist Lab. and other

third-party authoritative testing institutions, such as detection;

2. The pesticide residues match (EC) No 396/2005 USP34, EP8.0, FDA and other foreign pharmacopoeia standards and regulations;

3. The heavy metals in strict accordance with the foreign pharmacopoeia standard controls, such as USP34, EP8.0, FDA, etc.;

4. Our company set up a branch and import raw materials directly from Europe with strict control of heavy metal and pesticide residue. Aslo ensure the procyanidins content in grape seed is more than 8.0%.

5. OPCs over 95%, polyphenol over 70%, high activity, the oxidation resistance is strong, the ORAC more than 11000.

[Function]

Grapes (Vitis vinifera) have been heralded for their medicinal and nutritional value for thousands of years. Egyptians ate grapes a very long time back, and several ancient Greek philosophers spoke about the healing power of grapes — usually in the form of wine. European folk healers made an ointment from the sap of grapevines to treat skin and eye diseases. Grape leaves were used to stop bleeding, inflammation, and pain, such as the kind brought on by hemorrhoids. Unripe grapes were used to treat sore throats, and dried grapes (raisins) were used for constipation and thirst. Round, ripe, sweet grapes were used to treat a range of health problems including cancer, cholera, smallpox, nausea, eye infections, and skin, kidney, and liver diseases.

Grape seed extracts are industrial derivatives from whole grape seeds that have a great concentration of vitamin E, flavonoids, linoleic acid and phenolic OPCs. The typical commercial opportunity of extracting grape seed constituents has been for chemicals known as polyphenols having antioxidant activity in vitro.

Plant Care
In general, Stevia should be treated as a vegetable crop. When hot weather sets in, usually a month after planting, beds should be mulched 3 to 6 inches deep with organic residue such as grass clippings, chopped leaves, straw, hay, or compost. This will protect the shallow feeder roots and hold in moisture. Plant growth is slow at first, accelerating by mid summer.

A consistent moisture supply is important for Stevia. Irrigate once or twice a week, whenever rain fails to water the plants. Sandy soils require more frequent irrigation. Trickle irrigation is ideal, ensuring consistent moisture levels without wetting leaves. A simple and effective system is the black, “weeping” soaker hose made from recycled rubber. Place a soaker hose between the two rows of plants, beneath the mulch. Attach to a garden hose and turn the water on at a trickle for a couple of hours. The system can be automated with the addition of a timer.

Side-dressing is usually not necessary, but low nitrogen or organic fertilizer may be applied in the summer as plant growth begins to accelerate. Excess nitrogen causes tender growth and reduced leaf sweetness.

Stevia may be affected by two lesion-producing fungal diseases, Septoria steviae and Sclerotinia sclerotiorum. With Sclerotinia, dark brown lesions form on stems, near the soil line, followed by wilting and eventual collapse of the plant. Stevia plants are usually full grown before diseases appear. As harvest time nears, commercial growers watch plants closely and harvest the entire crop at the first sign of disease. Meticulous weed control (by hand) permits strong growth, which helps plants resist disease. Humid, wet weather and standing water favor the development of fungal diseases, making raised beds or hills a preventative measure. Additionally, avoid wetting leaves during irrigation. Stevia is usually the last plant insects will feed on, so pests are seldom a problem outdoors. Aphids, thrips, and whiteflies can cause damage in heavily infested greenhouses.

Sugar amount Equivalent Stevia powdered extract Equivalent Stevia liquid concentrate
1 cup 1 teaspoon 1 teaspoon
1 tablespoon 1/4 teaspoon 6 to 9 drops
1 teaspoon A pinch to 1/16 teaspoon 2 to 4 drops

Sugar amount Equivalent 1 cup = Stevia powdered extract Equivalent 1 teaspoon = Stevia liquid concentrate 1 teaspoon
Sugar amount Equivalent 1 tablespoon = Stevia powdered extract Equivalent 1/4 teaspoon = Stevia liquid concentrate 6 to 9 drops

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Class 11: Biology: Biomolecules: Polysaccharides