Induction Heating of Essential Oils for Controlled Aroma Production
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Solution Overview
Problem
Existing methods for producing flavoring compositions with spicy-cooked, fried to roasted flavors require special equipment, result in uncontrolled pyrolysis at high temperatures, leading to undesirable petroleum-like, tarry, and tart notes, and necessitate costly purification steps to remove harmful by-products like 1-decene, 1-undecene, 5-undecene, 2-undecene, and 1,3-undecadiene.
Innovation Solution
A method involving a short-term temperature treatment of essential oils, typically between 80°C to 300°C for 0.1 to 6 seconds, using a continuous induction reactor, followed by rapid cooling, to produce a flavoring composition with a balanced spicy-roasted profile, avoiding the formation of unwanted compounds.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Temperature
If high temperature treatment (at least 350°C) is used to produce roasted flavors, then the roasted aroma intensity is improved, but harmful by-products (petroleum-like, tarry, and tart notes) are formed
Solution Approach 1:
The patent applies parameter changes by precisely controlling temperature (80-300°C), time (0.1-6 seconds), and atmosphere (nitrogen or vacuum) to transform the thermal treatment process from uncontrolled pyrolysis into a controlled Maillard reaction, achieving roasted flavors without harmful by-products
Solution Approach 2:
The patent applies preliminary action by removing oxygen through nitrogen replacement or vacuum treatment before heating, preventing oxidative pyrolysis and harmful by-product formation while enabling controlled flavor development through Maillard reaction
2Manufacturing precision
If special equipment is used for controlled flavor production, then the aroma quality is improved, but the device complexity and production cost increase
Solution Approach 1:
The patent applies universality by designing a multi-functional reactor that combines mixing, heating, inert atmosphere maintenance, and product recovery in a single vessel, eliminating the need for separate specialized equipment while maintaining precise process control
Solution Approach 2:
The patent applies self-service through automated nitrogen circulation that automatically maintains inert atmosphere conditions, and self-regulating heating that achieves uniform temperature distribution without complex control systems
3Productivity
If uncontrolled pyrolysis occurs at high temperatures, then the production speed is improved, but the flavor profile becomes unbalanced with undesirable notes
Solution Approach 1:
The patent applies continuity of useful action by maintaining constant nitrogen circulation throughout the heating process, ensuring continuous removal of oxygen and consistent inert atmosphere conditions, which enables both rapid processing and controlled flavor development
Solution Approach 2:
The patent applies dynamics by using vigorous mixing during heating to ensure uniform temperature distribution and prevent localized pyrolysis, then rapidly cooling and separating the product to lock in the desired flavor profile
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
This method effectively creates a flavoring composition with a harmonious, intense roasted aroma, free from undesirable notes, using standard equipment and reducing the formation of harmful by-products, while maintaining a high flavor concentration.
Implementation Method 1
using a continuous induction reactor
Implementation Method 2
Heating the oil component to temperatures of about 80 to about 300 °C
Implementation Method 3
Cooling the resulting product
Data Source
AI summary
The invention proposes a method for producing a liquid aroma composition having an improved spicy/roasted to toasted sensory profile, comprising the following steps: (a) providing an essential oil component and optionally a carrier substance; (b) heating the oil and/or fat components to a temperature of around 80 to around 300 °C over a period of approximately 0.1 to approximately 6 seconds; (c) cooling the resulting product to obtain the aroma composition.