Gynostemma Pentaphyllum Extract Preparation with Benzopyrene Reduction
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Solution Overview
Problem
Existing methods for preparing Gynostemma Pentaphyllum leaves extracts fail to adequately increase small molecular effective saponin content while minimizing benzopyrene levels, leading to reduced efficacy and safety concerns due to high benzopyrene generation during heat treatment processes.
Innovation Solution
A method involving drying fresh Gynostemma Pentaphyllus leaves after roasting or steaming, followed by steam treatment, hot water extraction, and alcohol extraction under controlled temperature and pH conditions to enhance small molecular saponin content and reduce benzopyrene levels, resulting in a product with 0.01-7 mg/g of ginsenoside Rg3, 1.5-70 mg/g of gypenoside L, and 1.5-70 mg/g of gypenoside LI, with benzopyrene levels of 10 ppb or less.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Quantity of substance
If high temperature heat treatment is applied to increase small molecular saponin content, then saponin conversion is improved, but benzopyrene generation increases
Solution Approach 1:
The patent applies parameter changes by controlling the extraction temperature within 60-100°C and maintaining pH between 2-6 to optimize saponin extraction while preventing benzopyrene formation. This resolves the contradiction by finding optimal parameters that achieve saponin conversion without excessive heat treatment.
Solution Approach 2:
The patent uses pH control as an intermediary mechanism to facilitate saponin extraction without relying on high temperature. By adjusting pH to 2-6, the extraction process becomes more efficient at lower temperatures, thereby reducing benzopyrene generation while maintaining saponin content.
2Quantity of substance
If additional processing steps such as fermentation or enzyme treatment are added to increase saponin content, then small molecular saponin content is improved, but production time and cost increase
Solution Approach 1:
The patent achieves saponin conversion through parameter changes in the extraction process itself (temperature 60-100°C, pH 2-6), eliminating the need for separate fermentation or enzyme treatment steps. This resolves the contradiction by integrating the conversion function into the extraction process, reducing overall production time.
Solution Approach 2:
The patent extracts and isolates the essential function of saponin conversion directly during the extraction process rather than requiring subsequent separate processing steps. This extraction approach eliminates unnecessary time-consuming steps like fermentation while maintaining effective saponin content.
3Productivity
If conventional extraction methods are used without pH control, then extraction simplicity is maintained, but saponin extraction efficiency is insufficient
Solution Approach 1:
The patent enhances extraction efficiency by controlling pH within 2-6, which significantly improves saponin solubility and extraction yield. This parameter control adds minimal complexity while substantially improving productivity.
Solution Approach 2:
The patent applies partial pH control (within the optimal range of 2-6) rather than complete process control, achieving sufficient extraction efficiency without excessive complexity. This partial action approach balances productivity improvement with process simplicity.
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 effectively increases the content of small molecular effective saponins like ginsenoside Rg3, gypenoside L, and gypenoside LI, while significantly reducing benzopyrene levels, enhancing the safety and efficacy of the extracts for applications in obesity, diabetes, and muscle loss treatment, as well as improving motor ability.
Implementation Method 1
adding water of 1-fold to 100-fold volume and then preparing a hot water extract by carrying out hot water extraction at 100-150° C., 0.5-10 atm for 1-120 hours
Implementation Method 2
adding C1-C4 lower alcohol of 1-fold to 100-fold volume to the residual from the hot water extraction and then preparing an alcohol extract of residual from the hot water extraction by carrying out alcohol extraction at 50-100° C. for 1-120 hours
Implementation Method 3
treating the dried Gynostemma Pentaphyllum leaves with steam
Data Source
AI summary
A preparation method of Gynostemma Pentaphyllus leaves extracts with increased amount of small molecular effective saponin and decreased benzopyrene includes the steps of drying fresh Gynostemma Pentaphyllus leaves after heating, treating the dried Gynostemma Pentaphyllus leaves with steam, adding water of 1 to 100-fold volume to the above Gynostemma Pentaphyllus leaves and then preparing a hot water extract by carrying out a hot water extraction at 100-180 V, 0.5-10 atm for 1-120 hours, adding C1-C4 lower alcohol of 1 to 100-fold volume to the residual remained after the hot water extraction and then preparing an alcohol extract of the residual from the hot water extract by carrying out an alcohol extraction at 50-100° C. for 1-4 hours, and mixing the hot water extract and the alcohol extract, and then filtering and concentrating the mixture.