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Refining method of safflower oil

A technology of safflower seed oil and safflower seeds, which is applied in the field of vegetable oil refining, can solve problems such as difficult to remove, high residual leaching crude oil, complex composition, etc., and achieve the effect of overcoming too slow speed

Active Publication Date: 2016-02-03
XINJIANG YUMIN TIANDING SAFFLOWER CO LTD
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  • Abstract
  • Description
  • Claims
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Problems solved by technology

(4) Solvent method, such as leaching with No. 6 solvent oil, but because No. 6 solvent oil has a wide boiling range (60-90°C) and its composition is relatively complicated, it is still difficult to remove the high boiling point components remaining in the oil , resulting in higher residual solvent in the leached crude oil

Method used

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Embodiment Construction

[0012] The present invention is described in further detail below in conjunction with embodiment.

[0013] The crude oil obtained from safflower seeds through the oil press generally contains about 9wt% saturated fatty acids. When the temperature drops to about 17°C, white flocs (mainly saturated fatty acids) begin to coagulate and precipitate. Because this kind of precipitate is very soft and easy to deform and coagulate to block the filter pores, it hinders the application of filtration, especially pressure difference filtration. The invention improves the solidification curve of the safflower seed crude oil, so that the precipitates can obtain the particle strength reaching the filtration level, so that they can be removed by direct filtration, and the effect of shortening the separation time is achieved.

[0014] Refining process of the present invention comprises:

[0015] (1) Cool down the safflower seed crude oil, and carry out constant temperature treatment at least a...

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Abstract

The invention discloses a refining method for safflower seed oil. The method comprises the following steps: (1) cooling crude safflower seed oil and carrying out constant temperature treatment at temperatures of 10 to 5 DEG C, 2 DEG C and 0 DEG C; and (2) continuing cooling the crude safflower seed oil having been treated in the step (1) to no more than -10 DEG C, maintaining a constant temperature for at least 72 h and carrying out filtering so as to obtain refined safflower seed oil. The refining method provided by the invention overcomes the problem of unavoidable residual of added chemical reagents in a finished product in conventional hydration, alkali refining and solvent processes and the like, does not need decoloring and deodorization, produces no pollution, overcomes the problem of a too slow speed in natural sedimentation and maintains the natural flavor and color of safflower seed oil after refining.

Description

technical field [0001] The invention belongs to the field of vegetable oil refining, in particular to a method for refining safflower seed oil. Background technique [0002] Safflower seed crude oil contains a large amount of phospholipids, impurities, stearin, solid fat, saturated fat and so on. At present, the main methods of refining crude oil are: (1) Precipitation method, the crude oil is placed in the precipitation equipment, generally at 20 ~ 30 ° C to let it settle naturally. Since the particles of many impurities are small, the specific gravity of oil is not much different from that of oil. Therefore, the natural precipitation of impurities is very slow, usually taking more than 10 days or even longer. In addition, because the viscosity of oil decreases with the increase of temperature, increasing the temperature of oil can speed up the precipitation of certain impurities. However, increasing the temperature will also increase the solubility of impurities such as...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C11B3/00
Inventor 王来忠陈建国李华彬
Owner XINJIANG YUMIN TIANDING SAFFLOWER CO LTD
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