Pongamia Seedcake Extraction for Low Karanjin Residues

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Solution Overview

Problem

Existing methods for extracting pongamia seedcake fail to completely remove residual oil, karanjin, and pongamol, leading to inaccurate analysis and hinder downstream use, while lacking a standardized method for evaluating residual concentrations.

Innovation Solution

A method involving microwave-assisted solvent extraction using alkyl alkanoate solvents, such as ethyl acetate, to separate pongamia compositions into extracted and residual components, allowing for accurate measurement of karanjin and pongamol concentrations.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Manufacturing precision

If existing extraction methods are used to remove karanjin and pongamol from pongamia seedcake, then some extraction is achieved, but the removal is incomplete and residual concentrations remain too high for downstream use

Engineering Contradiction:

Improvekaranjin and pongamol removal efficiencyVSAvoidresidual karanjin and pongamol concentration

Core Design Contradiction:

Manufacturing precisionVSQuantity of substance

Solution Approach 1:

The patent changes the chemical parameters of the extraction system by using alkaline treatments (NaOH, KOH) at controlled concentrations and temperatures, followed by acidification. This parameter change enables complete removal of karanjin and pongamol by exploiting their chemical solubility characteristics in different pH conditions, achieving residual concentrations below detection limits.

Inventive Principle:

Principle #35Parameter changes

Solution Approach 2:

The patent replaces conventional mechanical extraction methods with chemical extraction using alkaline and acid treatments. This substitution allows for more effective removal of karanjin and pongamol by utilizing their chemical properties rather than relying on physical extraction alone, achieving complete removal where mechanical methods failed.

Inventive Principle:

Principle #28Mechanics substitution (Replace mechanical system)

2Measurement precision

If conventional analytical methods using methanol or hexane extraction are used, then karanjin and pongamol concentrations can be measured, but the measurements are inaccurate and inconsistent

Engineering Contradiction:

Improvekaranjin and pongamol concentration measurement accuracyVSAvoidconsistency of concentration values across different methods

Core Design Contradiction:

Measurement precisionVSReliability

Solution Approach 1:

The patent replaces solvent extraction-based analytical methods with direct HPLC analysis of the pongamia seedcake. This substitution eliminates the intermediate extraction step that introduced variability, allowing direct measurement of karanjin and pongamol concentrations with high accuracy and consistency across different samples and laboratories.

Inventive Principle:

Principle #28Mechanics substitution (Replace mechanical system)

Solution Approach 2:

The patent extracts and isolates karanjin and pongamol from the complex pongamia seedcake matrix using HPLC chromatography, separating them from other interfering substances. This extraction at the analytical level enables precise quantification without the inaccuracies introduced by preliminary solvent extraction steps.

Inventive Principle:

Principle #2Taking out (Extraction)

3Ease of manufacture

If crude pongamia seedcake is used directly for downstream applications, then the process is simple, but the presence of residual oil and anti-nutritional factors precludes suitable use as feed

Engineering Contradiction:

Improvesimplicity of processingVSAvoidanti-nutritional factors and residual oil

Core Design Contradiction:

Ease of manufactureVSObject-affected harmful factors

Solution Approach 1:

The patent implements a continuous multi-step treatment process where alkaline extraction, acidification, and washing steps are performed in sequence without interrupting the material flow. This continuous processing efficiently removes residual oil and anti-nutritional factors while maintaining operational simplicity, producing seedcake suitable for feed applications.

Inventive Principle:

Principle #20Continuity of useful action

Solution Approach 2:

The patent uses the anti-nutritional factors karanjin and pongamol as markers to guide the extraction process. By targeting these specific compounds for removal through alkaline treatment, the process simultaneously eliminates harmful substances while recovering valuable proteins and improving feed quality, converting the presence of harmful factors into a beneficial selection criterion.

Inventive Principle:

Principle #22Blessing in disguise (Convert harm into benefit)

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

Provides more precise quantification of karanjin and pongamol, enabling the production of pongamia compositions with low residual concentrations suitable for animal feed, overcoming inaccuracies in existing methods.

Implementation Method 1

irradiating the extraction mixture with microwave radiation to provide an irradiated mixture

Methodology Applied

Scientific EffectMicrowave radiation: Microwave Radiation

Data Source

PatentUS12610971B2Pongamia compositions, methods of preparing and analyzing thereof, and uses thereof

Publication Date: 2026.04.28 TERVIVA INC

AI summary

The present disclosure relates to pongamia compositions having low concentrations of karanjin and other active chemical components intrinsic to pongamia oilseeds, methods of preparing and using said pongamia compositions. The present disclosure also relates to methods of analyzing pongamia compositions, as well as uses of the pongamia compositions.