Green Tea Catechin Bioavailability via OPC and Ascorbic Acid Stabilization
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Solution Overview
Problem
The bioavailability of green tea catechins is poor due to their instability under physiological conditions, and existing methods to enhance stability and bioavailability are either ineffective or not applicable without fasting periods.
Innovation Solution
A formulation combining oligomeric procyanidins (OPCs) and ascorbic acid is used to increase the bioavailability and stability of green tea catechins, which can be incorporated into various food, pet food, and cosmetic products.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If green tea catechins are used alone, then the formulation is simple, but the bioavailability is poor due to instability under physiological conditions
Solution Approach 1:
The patent combines green tea catechins with oligomeric procyanidins (OPCs) and ascorbic acid to create a composite formulation. This combination stabilizes the catechins under physiological conditions and improves their bioavailability, resolving the contradiction between simple formulation and poor bioavailability.
Solution Approach 2:
OPCs and ascorbic acid act as intermediary substances that protect green tea catechins from degradation. These intermediaries stabilize the catechins in the gastrointestinal tract, preventing chemical changes and improving absorption, thus enhancing bioavailability without requiring complex delivery systems.
2Stability of the object's composition
If antioxidants are added to stabilize catechins, then the stability improves, but the bioavailability enhancement is unconfirmed or ineffective
Solution Approach 1:
The patent optimizes the concentration ratios of catechins, OPCs, and ascorbic acid to achieve optimal stability and bioavailability. By carefully controlling these parameters, the formulation maintains catechin stability while enhancing bioavailability, overcoming the limitation of unconfirmed effectiveness of simple antioxidant additions.
Solution Approach 2:
The synergistic combination of OPCs and ascorbic acid with green tea catechins creates a composite system where each component enhances the others. This composite approach provides both stability protection and confirmed bioavailability enhancement, unlike single-antioxidant additions.
3Reliability
If fasting period is required before tea polyphenol intake, then the bioavailability may improve, but the ease of operation is reduced
Solution Approach 1:
The formulation contains OPCs and ascorbic acid that actively protect and enhance catechin absorption during normal digestion. This self-service mechanism eliminates the need for fasting periods, as the stabilizing and bioavailability-enhancing effects occur automatically during regular meal consumption.
Solution Approach 2:
OPCs and ascorbic acid perform preliminary protective action on catechins during formulation and digestion, preventing degradation before absorption occurs. This preliminary stabilization eliminates the need for fasting periods, allowing the catechins to be absorbed effectively during normal eating conditions.
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 combination of OPCs and ascorbic acid significantly improves the stability and bioavailability of green tea catechins, leading to enhanced nutritional and cosmetic benefits, including increased plasma levels of catechins and prolonged stability, as demonstrated by clinical trials.
Implementation Method 1
One possible strategy to increase the stability of green tea catechins under adverse conditions is to protect them by antioxidants thus preventing the chemical changes caused by exposure to oxygen. For example, Rode et al. (2002) have shown that the incorporation of a hydrosoluble antioxidant (vitamin C) stabilized green tea catechins in emulsions
Implementation Method 2
The present invention relates to the use of a mixture of OPCs and ascorbic acid to increase bioavailability of green tea EGCg and ECg catechins. The combination of OPCs and ascorbic acid significantly improves the stability and bioavailability of green tea catechins, leading to enhanced nutritional and cosmetic benefits, including increased plasma levels of catechins
Data Source
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AI summary
The present invention relates to a green tea formulation stabilized by natural antioxidants such as OPC together with vitamin C or vitamin C analogs. The invention also relates to the use of a mixture of OPC and ascorbic acid to increase bioavailability of green tea catechins. It also relates to a food, pharmaceutical or cosmetic composition that contains the stabilized green tea formulation.