Grape seed extract
Vitaflavan
Extract from white grape seeds. Known for its purity and chemical properties, Vitaflavan is guaranteed to have a high content of short oligomers of catechin and epicatechin, molecules that enhance the ingredient’s bioavailability and the beneficial activity of the extract in dietary supplements and functional foods.
- Physiological activity: Antioxidant/venotonic effect
- Recommended daily dose: between 60 and 120 mg
- Applications: dietary supplements: tablets, tablets/capsules functional food: yogurts, juices, cereal bars, compotes
Total polyphenols
> 96
Monomers
< 25
Dimers + trimers
> 30
Procyanidin content (GPC)
> 75
Procyanidin content (Porter)
70
Antioxidant activity, ORAC (μmol teq/g)
19000
Drying losses (%)
6.0
Method: PH.EUR.2.2.32
Insoluble in water at 37°C (%)
3.0
Method: DRT 3882
Sulfur ash (%)
0.5
Method: PH.EUR.2.4.14
Insoluble in THF (%)
1
Method: DRT 3884
pH at 20°C
between 2.5 and 4.5
Method: DRT 3302
UV absorption at 281 nm
between 145 and 175
Method: PH.EUR.2.2.25
Residual solvent: ethyl acetate (mg/kg)
10.00
Method: DRT 1251
STORAGE & STABILITY
Stable for 5 years when stored in its original sealed packaging at room temperature, in a dry place away from air and light.
PACKAGING
The product is available in 1.5 and 10 kg packs.
CUSTOMS TARIFF
13 02 19
CAS
85594-37-2
EINECS
287-896-9
