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Method for extracting camellia oil through subcritical fluid extraction technology

A technology of subcritical fluid and extraction technology, which is applied in the field of extracting tea oil with critical fluid, can solve the problems of low product quality, environmental pollution and high production cost, and achieve the effects of convenient operation, shortening extraction time and improving extraction rate.

Inactive Publication Date: 2011-05-25
曹庸
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AI Technical Summary

Problems solved by technology

But a common feature is that the production cost is relatively high, and most of them are produced by traditional techniques, resulting in environmental pollution and low product quality.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0015] Embodiment 1: 1.0 kilograms of tea seeds are put into the extraction kettle, feed CO 2 , the extraction temperature is 32°C, the pressure is adjusted to 22MPa, the extraction time is 90min, the flow rate is 50L / h, and CO is recovered after extraction 2 . The camellia oil extracted under this condition is clear in color and has no obvious impurities, and the extraction rate can reach 99%.

Embodiment 2

[0016] Example 2: Put 1.0 kg of tea seeds into the extraction kettle, pass through butane, the extraction temperature is 45°C, adjust the pressure to 0.8-1.0MPa, the extraction time is 40min, the flow rate: 50L / h and recover the butane after the extraction is completed alkyl. The camellia oil extracted under this condition is clear in color and has no obvious impurities, and the extraction rate can reach 99%.

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Abstract

The invention provides a method for extracting camellia oil through subcritical fluid extraction technology, which comprises the steps of: putting weighed camellia seed raw materials into an extraction kettle; and introducing CO2 or an odorless and nontoxic alkane solvent for extraction, wherein the extraction conditions are that: the temperature is 5 to 50DEG C, the pressure is 0.1 to 45Mpa, the extraction time is 10 to 240min, and the flow is 30 to 60L / h. Through the method, the one-time extraction rate is about 98 percent, the extraction time can be shortened by about 30 percent, harmful solvent residual does not exist, the extraction refinement can be realized through one-time treatment, the high temperature process is avoided, high-quality camellia oil can be obtained, and subsequent treatment such as deodorization and decoloration are not needed; and the method is convenient, safe and environment-friendly to operate, and the cost is reduced by about 10 percent compared with that of the traditional high-grade camellia oil processing method.

Description

technical field [0001] The invention relates to an extraction method of camellia oil, in particular to a process method for extracting camellia oil with a critical fluid. Background technique [0002] Camellia oil is obtained from the seeds of Camellia oleifera. It is a unique woody oil in my country. It is mainly distributed in the southern provinces of my country. The fatty acid composition of camellia oil is very similar to that of olive oil, which is the best wood edible vegetable oil recognized in the world. Similar, therefore, camellia oil is transcribed as "Oriental olive oil". "Compendium of Wood Grass" records: "Tea oil is cool in nature, has the effects of cooling blood, stopping bleeding, clearing away heat, and detoxifying. According to the "Dictionary of Chinese and Foreign Medicine", tea oil is not only rich in nutrition, but also has important medicinal value, which can enhance the elasticity and toughness of blood vessels, delay atherosclerosis, increase gast...

Claims

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Application Information

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IPC IPC(8): C11B1/10
Inventor 曹庸
Owner 曹庸
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