Process for preparing high quality tea oil

A preparation process, high-quality technology, applied in the field of preparation process of high-quality camellia oil, can solve the problems of multiple harmful substances, harmful to human body, generation of thick smoke, etc., and achieve the effect of simple operation, short processing time and small environmental pollution

Inactive Publication Date: 2012-06-20
湖南大自然制药有限公司
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  • Abstract
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  • Application Information

AI Technical Summary

Problems solved by technology

Because this kind of camellia oil has not been refined, it contains more harmful substances, and it will produce thick smoke when cooking, which not only affects the environment, but also is harmful to the human body.
In recent years, some domestic oil companies and relevant units have conducted research on the refining process of camellia oil, and developed some refining processes suitable for industrial production, such as the Chinese patent "Method for refining camellia oil with high nutrient content" (patent application No. 200910307817.2), this invention aims at the problem of excessive loss of camellia oil nutrients caused by excessive temperature in the prior art, and provides a method for refining camellia oil with high nutrient content. The main steps include: producing crude oil at normal temperature; Add warm water, then use sedimentation separation method to remove the impurities and water in the lower layer; add sodium hydroxide solution, then use sedimentation separation method to remove water and soapstock; heat tea seed crude oil to 80 ℃ ~ 90 ℃, add 1 to 3 parts of activated clay , at -0.1MPa~-0.095MPa, cooled to 68℃~72℃ after 15~20 minutes, and then filtered with cotton cloth; deodorized camellia oil was obtained after distillation at a temperature of 140~150℃ and a vacuum of 200Pa to 260Pa; deodorized The camellia oil is cooled slowly and filtered under static pressure to obtain refined camellia oil

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0029] a, get 3000kg of fresh camellia oleifera seed as raw material, process according to conventional low-temperature cold pressing technology, make crude oil 450kg, standby;

[0030] B, carry out the acid value measurement (the acid value measured in this example is 3.1%) with the spare crude oil, be heated to 55 ℃, stir 2h while heating, then add the NaOH aqueous solution that concentration is 35% (the add-on of alkali T is calculated according to the formula: T=7.1×310 -4 × crude oil weight × acid value, its amount is 2.98 kilograms), precipitated for 12h, filtered out soapstock, and obtained 410 kilograms of alkali-refined crude oil, for subsequent use;

[0031]c. Slowly raise the temperature of the spare alkali-refined crude oil to 85°C, add 0.2% by weight of the alkali-refined crude oil and a 50% sodium chloride aqueous solution, stir evenly while adding, and then, Precipitate at constant temperature for 2 hours, filter out the soapstock again; then add hot water abov...

Embodiment 2

[0036] This embodiment is a further processing carried out on the basis of Embodiment 1.

[0037] a. Take 110kg of high-quality camellia oil prepared by Example 1 and put it into a distiller. When the temperature in the distiller is raised to 100-200° C. and the pressure is 0.1-0.6 MPa, open the first valve and close the second valve , keep the pressure at 0.1-0.45Mpa, the temperature at 100-150°C, and the distillation time at 70min;

[0038] b. Then, close the first valve, open the second valve, keep the pressure at 0.2-0.4Mpa, the temperature at 100-110°C, and the distillation time for 60min;

[0039] c. When the temperature in the distiller is raised to 200-350°C and the pressure is 0.3-0.8Mpa, open the first valve and close the second valve to keep the pressure at 0.3-0.6Mpa and the temperature at 200-250°C. After 90min, the obtained distillate was cooled to obtain 22kg of high-quality finished camellia oil.

[0040] The high-quality finished camellia oil prepared by thi...

Embodiment 3

[0043] This embodiment is a further processing carried out on the basis of Embodiment 1.

[0044] a, get the high-quality camellia oil 110kg that is prepared by embodiment one and place in the container, add the edible ethanol (that is: the edible ethanol 220kg that concentration is 95%) of high-quality camellia oil 2 times weight, add 4.0 kilograms of aluminum oxides simultaneously , place it in a water bath at 70-80°C, heat and react for 6-8 hours under the protection of nitrogen, after cooling, the esterification reaction is completed, filter out 315 kg of the mixed solution, and set aside;

[0045] b. Heat the spare mixed solution to 50-60°C, then add neutral activated carbon accounting for 1-10% of the mixed solution weight (the activated carbon used in this example is 28 kg), stir evenly, repeat 3 times, filter, collect and filter liquid, repeat the above steps 3 times; the collected filtrate is heated and concentrated, left to stand, precipitated, and 92 kg of the upper...

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PUM

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Abstract

The invention discloses a process for preparing high quality tea oil and relates to the technical field of biomedicine and food processing. The process flow comprises the following steps of: preparing crude oil; performing alkali refining to remove soapstock; washing to remove colloid; decoloring by using argil; deodorizing at high temperature and the like. The process has the characteristics that the activity of target component s in the tea oil can be maintained, useless or harmful impurities can be removed, the energy consumption is low, environmental pollution is light, a production period is short and the like, and can be used for processing tea oil suitable for common people, edible tea oil with a health effect, health tea oil suitable for middle-aged and aged people, and health teaoil suitable for pregnant women and children.

Description

technical field [0001] The invention relates to the technical fields of biomedicine and food processing, in particular to a preparation process of high-quality camellia oil. Background technique [0002] Camellia oleifera is a unique woody oil crop in my country, and it is also an oil crop vigorously developed in China. The comprehensive utilization value of camellia oleifera is very high. It is rich in unsaturated fatty acids, monounsaturated fatty acids, vitamin E, squalene, tea polyphenols and other biologically active substances. Among them, monounsaturated fatty acids can improve blood antioxidant capacity, reduce cholesterol, It can prevent the occurrence of cardiovascular and cerebrovascular diseases, and can also reduce the incidence of diseases caused by metabolic disorders such as insulin-resistant diabetes. Not only does it not accumulate in the internal organs and subcutaneously, but it also prevents fat deposition and prevents obesity. In medicine, tea oil is u...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C11B1/06C11B3/00C11B3/06C11B3/10C11B3/12C11B3/02C11C3/04
Inventor 李文东邹先明管天球孙兴力
Owner 湖南大自然制药有限公司
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