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Method for preparing pure physical refined oil and camellia oleifera seed oil by using three-stage molecular distillation

A technology of molecular distillation and camellia seed oil, which is applied in the field of physical refining technology of camellia seed oil, can solve the problems of high working temperature, uneconomical, low processing capacity, etc., and can reduce peroxide value, improve safety, and remove pigment. Effect

Inactive Publication Date: 2017-12-19
HUIZHOU RES INST OF SUN YAT SEN UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, after the deacidification process, the adsorption process will inevitably bring about the disadvantage of poor flavor of camellia oil. On the other hand, the deacidification section of this process only contains one-stage molecular distillation, which has low processing capacity and high working temperature, which is not conducive to the quality of camellia oil. control
[0005] CN102669303A discloses a preparation method of squalene-rich camellia oil. The crude oil is saponified, washed, column-loaded, and washed twice to obtain squalene-rich camellia oil. The whole process has long steps and a lot of waste water, which is not conducive to environmental protection
[0006] The above-mentioned oil refining process either lacks consideration for the quality control and improvement of camellia oil, or the process is not environmentally friendly and uneconomical

Method used

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  • Method for preparing pure physical refined oil and camellia oleifera seed oil by using three-stage molecular distillation
  • Method for preparing pure physical refined oil and camellia oleifera seed oil by using three-stage molecular distillation
  • Method for preparing pure physical refined oil and camellia oleifera seed oil by using three-stage molecular distillation

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Embodiment 1

[0020] Embodiment 1: Utilize three-stage molecular distillation to prepare the method for pure physical refining camellia oleifera seed oil:

[0021] (1) In the decolorization tank, heat camellia seed oil to 110°C through steam insulation, then add 3% (w / w) mixed adsorbent (activated clay: self-made adsorbent = 3:1), according to the stirring speed 50r / min, heating time 30min to decolorize under near vacuum conditions, and then filter through a 200-mesh bag filter while hot to obtain decolorized oil. In the present invention, the temperature of crude oil heated by steam insulation is usually 50-120°C, for example, 50°C, 60°C, 70°C, 80°C, 90°C, 100°C, 11°C, or 120°C. The addition amount of mixed adsorbent in the present invention is usually 0.1~8% (w / w), for example can be 0.1%, 0.2%, 0.3%, 0.4%, 0.5%, 0.6%, 0.7%, 0.8%, 0.9% , 1%, 2%, 3%, 4%, 5%, 6%, 7%, 8%. In the present invention, the stirring speed is usually 30-100r / min, for example, 30r / min, 40r / min, 50r / min, 60r / min, 7...

Embodiment 2

[0030] Embodiment 2: Utilize three-stage molecular distillation to prepare the method for pure physical refining camellia oleifera seed oil:

[0031] (1) In the decolorization tank, heat camellia seed oil to 100°C through steam insulation, then add 1.5% (w / w) mixed adsorbent (activated clay: self-made adsorbent = 2:1), according to the stirring speed 50r / min, heating time 30min to decolorize under near-vacuum conditions, and then filter through a 200-mesh bag filter while hot to obtain decolorized oil.

[0032] (2) The decolorized oil is deacidified by three-stage molecular distillation. The working conditions of the first-stage molecular distillation are temperature 110°C, the temperature of the condensation surface is 30°C, and the pressure is 900Pa; the working conditions of the second-stage molecular distillation are temperature 160°C and the temperature of the condensation surface 30°C, pressure 50Pa; the working conditions of the third stage molecular distillation are te...

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Abstract

The invention discloses a method for preparing pure physical refined oil and camellia oleifera seed oil by using three-stage molecular distillation. The method comprises the following steps: firstly, adsorbing crude oil of camellia oleifera seed by using a mixed adsorbent comprising activated clay and a self-prepared adsorbent, filtering, and removing colloid, peroxide and pigment to obtain bleached oil; secondly, deacidifying decolorized oil warp by the three-stage molecular distillation, further removing to obtain a peroxidation value, and carrying out refined filtration to obtain a finished product, wherein the first-stage molecular distillation realizes the effects of dewatering and degassing; the second-stage molecular distillation realizes the effect of removing free fatty acid; the third-stage molecular distillation realizes the effect of further deacidifying to obtain finished camellia oleifera seed oil with a low acid value. The whole refining process for the camellia oleifera seed oil, disclosed by the invention, is environmentally friendly, short in period and high in refining rate; the retention rate of vitamin E and squalene in finished oil is high; in addition, indicators of the finished oil all accord with the standards of national first-class edible oil.

Description

technical field [0001] The invention relates to a physical refining process of camellia oleifera seed oil, in particular to a method for preparing purely physically refined camellia oleifera seed oil by means of three-stage molecular distillation. Background technique [0002] Camellia oleifera oil is the only edible oil comparable to olive oil. High-quality camellia oleifera oil contains 85% to 97% unsaturated fatty acids, and the absorption rate of the human body is as high as 97.2%. It is the crown of all kinds of edible oils and is rich in vitamins. , trace elements, phytosterols, etc., which can be further processed into cosmetic oil, medical injection oil and external skin massage oil. Camellia oleifera seed oil has an extremely broad potential consumer market at home and abroad. Camellia seed crude oil usually needs to be moderately refined to become a qualified product. [0003] CN103333738A discloses a vegetable oil fixed bed adsorption refining process, in which ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C11B3/00
CPCC11B3/001
Inventor 段迪纪红兵陈宇李杰陈曾赖晓宏
Owner HUIZHOU RES INST OF SUN YAT SEN UNIV
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