O-Glycosyl Flavonoid Solubility via L-Arginine Complexation
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Solution Overview
Problem
Current methods to enhance the water solubility of O-glycosyl flavonoids, such as isoquercitrin and rutin, either alter their natural form or result in unstable modifications, limiting their pharmaceutical and cosmetic applications due to low solubility.
Innovation Solution
A composition is prepared by mixing glycosyl compounds like isoquercitrin or rutin with L-arginine in specific molar ratios and concentrations, then agitated at controlled temperatures to create a formulation with significantly improved water solubility, allowing for enhanced pharmacokinetic profiles and stability.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Quantity of substance
If invasive chemical or enzymatic modification is used to improve water solubility, then water solubility is improved, but the natural form of the glycosyl flavonoid is altered
Solution Approach 1:
L-arginine serves as an intermediary substance that forms a complex with glycosyl flavonoids, enabling improved water solubility without chemically modifying the flavonoid structure. The L-arginine acts as a mediator that bridges the hydrophobic flavonoid and hydrophilic water environment through non-covalent interactions.
Solution Approach 2:
The invention creates a composite system consisting of L-arginine and glycosyl flavonoid in a specific molar ratio (1:1.6 to 1:3.0). This composite material combines the properties of both components, where L-arginine enhances water solubility while the glycosyl flavonoid maintains its natural therapeutic properties.
2Quantity of substance
If non-invasive salt or co-crystal polymorph formation is used to improve water solubility, then water solubility is improved, but the modified forms are unstable
Solution Approach 1:
L-arginine acts as a stable intermediary that forms a soluble complex with the glycosyl flavonoid through non-covalent interactions. This complex remains stable in aqueous solution and can be stored without degradation, unlike traditional salt or co-crystal forms.
Solution Approach 2:
The invention changes the physical-chemical parameters of the system by controlling the molar ratio of L-arginine to glycosyl flavonoid (1:1.6 to 1:3.0) and the agitation temperature (90°C or lower). These parameter optimizations ensure both high solubility and stability of the composition.
3Quantity of substance
If high temperature agitation is used to improve solubility, then water solubility is improved, but degradation of the glycosyl flavonoid may occur
Solution Approach 1:
The invention optimizes the temperature parameter by limiting agitation temperature to 90°C or lower. This temperature control achieves sufficient solubility enhancement while preventing thermal degradation of the heat-sensitive glycosyl flavonoid structure.
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 achieves water solubility of glycosyl compounds at least 300 times higher than conventional methods, enabling superior pharmacokinetic profiles and stability, making them suitable for pharmaceutical, medical, and cosmetic use without altering their natural form.
Implementation Method 1
mixing the glycosyl compound with an aqueous solution of L-arginine to form a mixture, in which the glycosyl compound and L-arginine are present in a molar ratio of 1:1.6 to 1:3.0
Implementation Method 2
agitating the mixture at a temperature of 90° C. or lower
Data Source
AI summary
A composition containing L-arginine and a glycosyl compound of formula (I):in which R is a moiety formed of a monosaccharide, a disaccharide, or an oligosaccharide including three to five monosaccharides; and the composition contains the glycosyl compound and L-arginine in a molar ratio of 1:1.6 to 1:3.0. Also disclosed is a method for preparing such a composition, as well as a composition prepared by the method.