Ethanol-Free Vanilla Extract Production via Solvent Substitution
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Solution Overview
Problem
Existing methods for producing vanilla extract rely on ethanol as a solvent, which can alter the sensory profile of the extract during storage and processing, and there is a growing demand for ethanol-free food products.
Innovation Solution
A process for producing an ethanol-free vanilla extract involves preparing fermented vanilla beans, extracting them with an organic solvent mixture having a specific polarity range, adding a protective solvent, filtering, and distilling off the extraction solvent to obtain a vanilla extract with minimal ethanol content.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If ethanol is used as extraction solvent for vanilla beans, then the extraction efficiency and solubility of flavor compounds is improved, but the sensory profile changes during storage and processing
Solution Approach 1:
The patent changes the extraction solvent from ethanol to ethyl acetate, altering the chemical parameter of the solvent system. This substitution maintains extraction efficiency while preventing the sensory profile changes that occur with ethanol during storage, as ethyl acetate does not undergo the same chemical reactions with vanilla compounds.
Solution Approach 2:
The patent employs a solvent system where ethyl acetate serves as the primary extraction solvent that can be completely removed by evaporation, leaving no residual solvent in the final product. This approach replaces the need for long-term stabilizers like ethanol, achieving stability through complete solvent removal rather than ongoing chemical protection.
2Adaptability or versatility
If ethanol-free extraction methods are used, then the demand for ethanol-free food products is met, but alternative solvents must be found that maintain extraction effectiveness
Solution Approach 1:
The patent selects ethyl acetate as the extraction solvent based on its specific physical and chemical parameters - it has appropriate polarity for extracting vanilla flavor compounds, favorable volatility for complete removal, and acceptable safety profile. This parameter-optimized solvent substitution maintains extraction efficiency while achieving ethanol-free product status.
Solution Approach 2:
The patent uses ethyl acetate as an intermediary solvent that facilitates the extraction of vanilla compounds without becoming part of the final product. The solvent acts as a temporary carrier that transfers flavor compounds from the beans to the extract, then is completely removed by evaporation, leaving only the desired flavor compounds behind.
3Productivity
If common extraction solvents are used, then extraction of flavor compounds is effective, but toxicological or sensory limitations restrict their use in final products
Solution Approach 1:
The patent employs ethyl acetate as a temporary extraction medium that is completely removed by evaporation. Unlike ethanol which may remain as a stabilizing residue, ethyl acetate is designed to be fully eliminated from the final product, serving only its extraction function and then being discarded through evaporation, thus avoiding all toxicological and sensory restrictions.
Solution Approach 2:
The patent changes from using solvents with restrictive parameters (ethanol's toxicological limits, methanol's toxicity) to ethyl acetate which has favorable parameters - it is effectively non-toxic at extraction levels, has pleasant sensory properties, and most importantly, can be completely removed by evaporation, eliminating all restriction issues.
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 process results in an ethanol-free vanilla extract with an authentic sensory profile that is closer to the natural aroma of fermented vanilla beans, maintaining stability during storage and avoiding changes in the odor type.
Implementation Method 1
extracting them with an organic solvent mixture having a specific polarity range
Implementation Method 2
adding a protective solvent
Implementation Method 3
distilling off the extraction solvent to obtain a vanilla extract
Implementation Method 4
distilling off the extraction solvent
Data Source
AI summary
The present invention relates to a process for producing an ethanol-free vanilla extract, and an ethanol-free vanilla extract obtainable by the process according to the invention. In particular, the present invention relates to an ethanol-free vanilla extract comprising at most 100 mg/kg ethanol, the use of this ethanol-free vanilla extract and products comprising the ethanol-free vanilla extract. The focus of the present invention is in particular to provide an ethanol-free vanilla extract which contains only traces of ethanol naturally contained in fermented vanilla beans and is produced without the use of ethanol.