Cold pressing and physical refining process of camellia oil

A technology of physical refining and camellia oil, applied in the direction of fat oil/fat refining, fat oil/fat production, fat production, etc., can solve the problems of difficulty in ensuring the quality of finished products, inability to remove free fatty acids and fatty acid peroxidation products, and high oil yield , to avoid the increase of acid value and peroxide value, reduce the increase of oil peroxidation products, and reduce the increase of free fatty acid content.

Active Publication Date: 2012-06-20
温州瑞雪农业开发有限公司
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AI Technical Summary

Problems solved by technology

This patented method imitates the processing technology of olive oil, and eliminates the pressing and extraction process and chemical refining process, avoiding the residue of chemical substances and the loss of nutrients, but this method does not consider the two woody oils of camellia seed and olive fruit The difference between the picking and processing process, olive oil is pulp oil, generally must be controlled within 8 hours from picking to processing, at this time the free fatty acids and peroxidation products in the oil are extremely low, this process can be considered
Camellia oleifera grows mostly in low mountain and hilly areas. It usually takes dozens of days to complete from picking, transportation, drying, shelling to crushing, and the free fatty acids and fatty acid peroxidation products produced during this process cannot be removed. , it is difficult to guarantee the quality of the finished product
[0006] Another example is that the publication d...

Method used

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  • Cold pressing and physical refining process of camellia oil
  • Cold pressing and physical refining process of camellia oil

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0030] Embodiment 1: as figure 1 The cold pressing and physical refining process of camellia oil shown includes:

[0031] (1) Select the raw material of mature camellia seed, which is dried in a microwave vacuum at a frequency of 2450MHz to a moisture content of 3%, and the pressure is controlled at 12KPa, so that the drying temperature will be controlled at 50°C to avoid excessive temperature and air Oxygen causes the oil in the camellia seed kernel to oxidize and decompose. Since camellia oleifera shells contain benzo(a)pyrene, the shelling rate of raw materials after drying should be above 99%, so as not to mix too much shells and produce benzo(a)pyrene during the pressing process. The microwave vacuum drying in the present invention is usually between the mass content of 3-6%, for example, it can be 4%, 4.5% or 5%. The microwave vacuum drying pressure in the present invention is usually 7KPa~20KPa, for example, it can be 10 KPa, 12KPa, 14KPa, 16KPa or 18KPa.

[0032] (2...

Embodiment 2

[0041] Camellia oil cold pressing and physical refining process includes:

[0042] (1) Select 100 kg of mature camellia seeds, put them into a microwave vacuum drying oven, and dry them to a moisture content of 5% under microwaves with a frequency of 2450 MHz and a pressure of 20 KPa. Send the dried shelled camellia seeds to the sheller for shelling, the shelling rate is 99%;

[0043] (2) Send the husked camellia seeds to a cold press for pressing, control the temperature of the press chamber at 130°C, and control the oil outlet temperature below 100°C;

[0044] (3) the camellia oil squeezed out is filtered through plate and frame to remove solid impurities;

[0045] (4) The camellia oil obtained by filtering the plate frame was winterized at 3° C. for 24 hours to remove high melting point waxes, esters, etc.;

[0046] (5) Put the winterized camellia oil into the feed cup of molecular distillation, degas it under the vacuum of 200pa for 15min, and then degas it under the pre...

Embodiment 3

[0049] Camellia oil cold pressing and physical refining process can also be used to produce Torreya oil, the steps are as follows:

[0050] (1) Select 500 kg of ripe torreya seeds without arils, put them into a microwave vacuum drying oven, and dry them to a moisture content of 3% with microwaves at a frequency of 2450 MHz and a vacuum of 10 KPa. The dried raw materials are sent to the shelling machine for shelling, and the shelling rate is 99%;

[0051] (2) Send the shelled Chinese torreya seed kernel to the cold press for pressing, the temperature of the pressing chamber is controlled at 120°C, and the oil outlet temperature is controlled below 80°C;

[0052] (3) the torreya torreya oil that squeezes out, removes solid impurity by plate and frame press filtration;

[0053] (4) The torreya oil obtained by filtering the plate frame was winterized at 1° C. for 18 hours to remove high melting point waxes, esters, etc.;

[0054] (5) Put the winterized torreya oil into the feedi...

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Abstract

The invention relates to a cold pressing and physical refining process of camellia oil. The cold pressing and physical refining process of the camellia oil is characterized by comprising the following steps of: (1) selecting ripe camellia seeds and drying the ripe camellia seeds by microwave vacuum until the water content is 3-6%; and conveying the dried camellia seeds into a huller to be hulled;(2) carrying out cold pressing on the hulled camellia seeds to squeeze the camellia oil, wherein the temperature of a barrel is in a range of 100-150 DEG C and an oil output temperature is in a rangeof 80-120 DEG C; (3) removing solid impurities in the squeezed camellia oil through a plate and frame filter press; (4) winterizing the camellia oil filtered by the plate and frame filter press at a temperature in a range from below 5 DEG C to 5 DEG C; (5) carrying out molecular distillation on the winterized camellia oil to remove free fatty acid, oil peroxide products, moisture and other low-boiling-point substances from the camellia oil; and (6) taking a mixture of carclazyte, active carbon and aluminum oxide as a filtering medium to filter; and removing impurities and pigments of the camellia oil treated by the molecular distillation to obtain the finished product. The cold pressing and physical refining process of the camellia oil has the advantages of environmental friendliness, high oil yield, and high retention ratio of micronutrients in finished oil.

Description

technical field [0001] The invention relates to a pressing and refining process of camellia seed oil, in particular to a low-temperature cold pressing process of camellia oil and a physical refining process of camellia oil. Background technique [0002] Camellia oil, also known as camellia oil, is obtained from the seeds of Camellia oleifera Abel. It is one of the oldest traditional woody edible vegetable oils in my country. Its fatty acid composition is very similar to that of olive oil. Known as "Oriental Olive Oil". Camellia oil also contains various active substances such as tea polysaccharides, camellia saponins, flavonoids, tea polyphenols, vitamins and phytosterols. Regular consumption can reduce cholesterol, increase high-density lipoprotein, reduce low-density lipoprotein, lower blood fat, and prevent heart disease. For cerebrovascular diseases, improving immunity, anti-radiation, scavenging free radicals, preventing tumors and other effects, the International Food ...

Claims

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Application Information

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IPC IPC(8): C11B1/04C11B1/06C11B3/00C11B3/12C11B3/10
Inventor 王衍彬钱华刘本同童晓青
Owner 温州瑞雪农业开发有限公司
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