Citrus Peel Polyphenol Extraction via Basic pH Heating

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Solution Overview

Problem

Current natural anti-inflammatory products face challenges with quality, purity, and yield, limiting their effectiveness and safety for widespread use in treating inflammatory diseases such as multiple sclerosis and chronic inflammation.

Innovation Solution

The development of a process to extract citrus peel extracts with increased levels of hesperitin and narirutin, using a heated aqueous extraction at a basic pH, which nearly doubles the polyphenol and flavonoid extraction efficiency, resulting in a highly effective anti-inflammatory composition.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Productivity

If conventional extraction methods are used for citrus peel, then the extraction process is simple, but the yield and purity of polyphenols and flavonoids are low

Engineering Contradiction:
Improveextraction efficiencyVSAvoidextraction process complexity
Core Design Contradiction:
ProductivityVSDevice complexity

Solution Approach 1:

The patent applies parameter changes by adjusting the pH to basic conditions (pH 8-12) and increasing extraction temperature (60-100°C) to significantly improve the extraction efficiency of polyphenols and flavonoids from citrus peel, achieving nearly double the yield compared to conventional methods

Inventive Principle:
Principle #35Parameter changes

Solution Approach 2:

The patent employs preliminary action through pre-heating and drying the citrus peel before extraction, and adjusting the pH of the extraction solvent in advance, which prepares the material and solvent optimally for maximum compound release during the extraction process

Inventive Principle:
Principle #10Preliminary action

2Reliability

If natural anti-inflammatory products are used, then they provide therapeutic benefits, but their quality, purity, and yield are insufficient for widespread use

Engineering Contradiction:
Improvetherapeutic effectivenessVSAvoidyield
Core Design Contradiction:
ReliabilityVSProductivity

Solution Approach 1:

By changing the extraction parameters to basic pH and elevated temperature, the patent achieves nearly double the yield of active compounds while maintaining high purity, making natural anti-inflammatory products reliable and productive for widespread therapeutic use

Inventive Principle:
Principle #35Parameter changes

Solution Approach 2:

The patent replaces conventional mechanical extraction methods with a chemically optimized extraction system using basic pH solutions, which significantly enhances the release and solubility of polyphenols and flavonoids, thereby improving both yield and therapeutic reliability

Inventive Principle:
Principle #28Mechanics substitution (Replace mechanical system)

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 improved extraction process yields a therapeutic anti-inflammatory composition that effectively treats inflammatory diseases like multiple sclerosis and chronic inflammation, with enhanced solubility and flowability, and can be used in various formulations including foods, beverages, and pharmaceuticals.

Implementation Method 1

extracting compounds from the pre-treated, ground peel in a solution adjusted to a basic pH

Methodology Applied
Scientific EffectSolvation: Solvation

Implementation Method 2

extracting compounds from the pre-treated, ground peel in a solution

Methodology Applied
Scientific EffectDiffusion: Diffusion

Implementation Method 3

heating a ground peel to form a pre-treated, ground peel

Methodology Applied
Scientific EffectHeating: Heating

Data Source

PatentUS11141449B2Method of extracting flavonoids and/or polyphenols from dried and powdered citrus peels, compositions therefrom, and methods of treatment of diseases associated with chronic inflammation
Publication Date: 2021.10.12 TAIT LAB
  • US11141449B2 patent drawing
  • US11141449B2 patent drawing
  • US11141449B2 patent drawing

AI summary

Improved processes for extracting polyphenols and/or flavonoids from citrus peels are provided that comprise 1) heating a ground peel to form a pre-treated, ground peel; and 2) extracting the compounds of interest from the pre-treated, ground peel using a basic solution of pH greater than 7 and less than 12. Such processes serve to increase the efficiency of extraction of the polyphenols and/or flavonoids. In preferred embodiments, the flavonoids extracted include hesperidin and narirutin. These extracts are useful in the preparation of anti-inflammatory medicaments for the treatment of chronic inflammatory disorders such as inflammatory bowel disease, Crohn's disease, irritable bowel syndrome (IBS), and multiple sclerosis.