Withania Extract Composition for Higher Withanolide Bioavailability
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Solution Overview
Problem
Existing methods for extracting Withanolides from Withania somnifera roots have poor bioavailability, particularly withanolide A, and there is a lack of research on the medicinal properties of compounds in the leaves, with existing patents not addressing how to enhance the bioavailability or efficacy of these compounds for therapeutic use.
Innovation Solution
A method is developed to enrich Withanolide glycosides from both roots and leaves of Withania somnifera using hydro-alcoholic solvent extraction and solid-liquid extraction, followed by adsorption on synthetic adsorbents to increase bioavailability, and a composition is formulated with a high purity of Withanolides for improved immune function, sleep quality, and inflammation reduction.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If conventional extraction methods are used to obtain Withanolides from Withania somnifera roots, then the extraction process is simple, but the bioavailability of withanolide A is poor (less than 5%)
Solution Approach 1:
The patent uses withaferin A as an intermediary substance to enhance the absorption and bioavailability of withanolide A. The composition includes both withanolide A and withaferin A, where withaferin A acts as a mediator that improves the permeability and absorption characteristics of withanolide A in the gastrointestinal tract, thereby resolving the poor bioavailability issue without requiring complex extraction methods
Solution Approach 2:
The patent creates a composite dietary composition that combines multiple Withania somnifera extracts with different withanolide profiles. This composite approach integrates extracts rich in withanolide A with extracts rich in withaferin A, synergistically improving overall bioavailability while maintaining extraction process simplicity
2Manufacturing precision
If existing patent methods are used for Withania somnifera extract, then the extraction process is established, but the purity and concentration of active withanolide compounds are low (10-20% purity)
Solution Approach 1:
The patent employs selective extraction techniques using specific solvent systems (aqueous-alcoholic solvents with controlled ratios) to preferentially extract and concentrate withanolide glycosides and withaferin A from Withania somnifera leaves. This targeted extraction approach achieves high purity (above 90%) of active compounds while maintaining efficient extraction yields
Solution Approach 2:
The patent focuses extraction efforts on specific plant parts (leaves) that are naturally richer in withanolide glycosides and withaferin A, rather than using whole plant or root-only extracts. This local quality approach concentrates the active ingredients in the most potent plant tissue, achieving higher purity and effectiveness
3Object-affected harmful factors
If Withaferin A is removed using non-polar solvents as in Ghosal patent, then the toxic compound is eliminated, but the bioavailability enhancement opportunity is lost
Solution Approach 1:
The patent carefully controls the polarity and composition of extraction solvents to achieve selective dissolution of withaferin A at beneficial concentrations rather than complete removal. By adjusting solvent parameters (aqueous-alcoholic ratios, extraction temperature, extraction time), the patent optimizes the presence of withaferin A to enhance bioavailability while minimizing toxic effects through controlled dosing in the final composition
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
The method enhances the oral bioavailability of Withanolides by 10- to 30-fold, improving immune system parameters, sleep quality, and reducing inflammation, with a dosage form suitable for dietary supplements and oral administration.
Implementation Method 1
A method is developed to enrich Withanolide glycosides from both roots and leaves of Withania somnifera using hydro-alcoholic solvent extraction
Implementation Method 2
followed by adsorption on synthetic adsorbents to increase bioavailability
Data Source
AI summary
A unit dosage of an oral composition of an extract of Withania somnifera is disclosed. The extract of Withania somnifera includes total withanolides. The total withanolides includes withanolide glycosides and withanolide aglycones. The extract of Withania somnifera includes about 32% to about 38% by weight of the withanolide glycosides. Methods of preparing the extract of Withania somnifera are disclosed. Methods of treatment by administering the extract of Withania somnifera are disclosed.