Liquefied CO2 Extraction of Vegetable Cell Sap Concentrate
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Solution Overview
Problem
Existing methods for extracting biologically active substances from plants often destroy vitamins and result in low stability of extracts due to high process temperatures, and fail to produce a cell sap concentrate using liquefied carbon dioxide effectively.
Innovation Solution
The method involves using liquefied carbon dioxide at room temperature with a high flow rate and elevated storage chamber to selectively separate an aqueous cell sap fraction from plant raw materials, avoiding the addition of water and maintaining the native form of biologically active substances.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If steam distillation is used to extract biologically active substances, then the extraction process is simple and effective, but high process temperature destroys vitamins and reduces stability of the extract
Solution Approach 1:
The patent changes the temperature parameter from high (steam distillation) to low (room temperature) and uses liquefied carbon dioxide as the extracting medium instead of steam, thereby preserving biologically active compounds while maintaining extraction effectiveness
Solution Approach 2:
The patent utilizes the phase transition properties of carbon dioxide (liquid to gas) to achieve extraction at room temperature, where CO2 acts as a supercritical fluid that can dissolve biologically active substances without thermal degradation
2Ease of manufacture
If traditional extraction methods are used, then the process is well-established, but they fail to produce cell sap concentrate in native form with high concentration of dissolved substances
Solution Approach 1:
The patent extracts cell sap and dissolved substances from plant raw materials using liquefied carbon dioxide, separating them from the plant matrix while maintaining their native form and achieving high concentration in the extracted fraction
Solution Approach 2:
By changing the extracting medium to liquefied carbon dioxide and controlling pressure and temperature parameters, the patent achieves concentration of cell sap components without adding water or other solvents, producing a concentrate in native form
3Object-affected harmful factors
If liquefied carbon dioxide is used for extraction, then biologically active substances are preserved, but the aqueous fraction is not segregated as a separate product
Solution Approach 1:
The patent segments the extracted fraction into separate components (aqueous fraction containing cell sap and oily fraction), allowing the aqueous fraction to be obtained as a distinct product with high concentration of biologically active substances
Solution Approach 2:
The patent uses an intermediary separation step where the extracted mixture is processed to separate the aqueous fraction from the oily fraction, with the aqueous fraction being collected as the desired cell sap concentrate
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 approach increases the yield and quality of biologically active substances by producing a concentrated cell sap concentrate with a significant increase in the concentration of dissolved substances, surpassing traditional methods in terms of dry residue content and retention of biological activity.
Implementation Method 1
The invention is based on the use of liquefied carbon dioxide. The extraction of plant raw materials by liquefied gases is accomplished under pressure in two stages
Implementation Method 2
depressurization to the filling pressure is carried out between the stages
Implementation Method 3
the flow-through extraction is accomplished under pressure exceeding the filling pressure
Data Source
AI summary
The invention relates to extracting biologically active substances from raw vegetable matter, consists in using a liquefied carbon dioxide and can be used in the pharmaceutical, perfume-and-cosmetic and food industries. The aim of the invention is to produce a cell sap concentrate by using liquefied carbon dioxide for the irradiation thereof. The inventive method consists in extracting a milled matter by means of liquefied carbonic acid at room temperature and in separating an oil fraction, wherein the extraction is carried out at a high rate of the liquefied carbonic acid with a proportion of not less than 11 of carbonic acid per 1 g of extracted vegetable cell sap and a vegetable cell sap concentrate is produced by separating the oil fraction from a water fraction.