Withania somnifera composition
First Claim
1. A Withania somnifera extract composition, in the form of a stable, herbaceous powder, which produces a cognition effect and learning facility for the user, when taken in a dosage of about 200-800 mg/day, which comprises, by weight, (a) at least 3% of withanolide glycosides and sitoindosides, (b) at least 3% of oligosaccharides, and (c) less than 0.5% of free withaferin A (aglycone), wherein the weight ratio of (a):
- (c) is 75-95;
25-5, and the weight ratio of (a);
(b) is 40-60;
60-40.
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Abstract
A high purity Withania somnifera extract composition in the form of a high purity, stable, free-flowing, light yellow-to-brown herbaceous powder, for producing an enhanced cognition effect for the user and to augment the learning facility in the geriatric population when taken in a dosage of 200-800 mg/day. This extract contains, by weight, (a) at least 3% of withanolide glycosides and sitoindosides, preferably 3-8%, (b) at least 3% of oligosaccharides, preferably 3-8%, preferably a molecular weight of <2000, and (c) less than 0.5% of free cytotoxic withaferin A (aglycone), wherein the ratio of (a):(c) is 75-95:25-5, and the ratio of (a):(b) is 40-60:60-40. An extraction process for obtaining such extract composition, and pharmaceutical and nutritional use products thereof, also are described.
23 Citations
13 Claims
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1. A Withania somnifera extract composition, in the form of a stable, herbaceous powder, which produces a cognition effect and learning facility for the user, when taken in a dosage of about 200-800 mg/day, which comprises, by weight, (a) at least 3% of withanolide glycosides and sitoindosides, (b) at least 3% of oligosaccharides, and (c) less than 0.5% of free withaferin A (aglycone), wherein the weight ratio of (a):
- (c) is 75-95;
25-5, and the weight ratio of (a);
(b) is 40-60;
60-40. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13)
- (c) is 75-95;
Specification