JP6179901B2 - Method for producing an oil composition - Google Patents

Description

Detailed Description of the Invention

[Field of the Invention]
The present invention relates to a method for producing an oil composition.

[Background of the invention]
Phytonutrients are chemical substances in plants, excluding vitamins and minerals, that have a particularly good effect on the health of the body. There are several types of phytonutrients, including major ones such as carotenoids and tocotrienols. Plant nutrients act as antioxidants, immunomodulators and anti-inflammatory agents, anti-aging agents and anti-cancer agents and play a role in disease prevention.

  Natural plant nutrients are components such as tocopherol, palm tocotrienol, provitamin A (carotenes), sterols, and squalene. In recent years, the demand for premium oil products has soared due to heightened consumer health awareness. Several conventional methods for producing phytonutrient rich oil compositions with good low temperature stability have been used in the past and have been used in milder countries such as the United States, Europe, Japan and Korea.

  Therefore, there remains a need for a method of producing natural phytonutrient rich oil compositions made from blends of palm oil and other highly unsaturated vegetable oils with good low temperature stability.

[Summary of Invention]
Accordingly, the present invention relates to a method of producing an oil composition, the method comprising refining palm oil and unsaturated oil separately, blending palm oil and unsaturated oil, and blended oil. Heating, fractionating the heated blended oil to produce a liquid oil, cooling the liquid oil with constant stirring to produce a crystallized oil, and performing filtration to filter the crystallized oil into a filtrate. Removing from the liquid oil.

  Furthermore, the present invention provides a method for producing an oil composition, the method comprising blending palm oil and unsaturated oil, heating the blended oil, and separating the heated blend oil. Producing a liquid oil over a fraction; cooling the liquid oil with constant stirring to produce a crystallized oil; filtering to remove the crystallized oil from the liquid oil in the filtrate; And refining the liquid oil.

  The drawings form part of the present specification and include exemplary or preferred embodiments of the invention that can be implemented in various forms. However, it should be understood that the disclosed preferred embodiments are merely illustrative of the invention. Accordingly, the drawings disclosed herein are not to be construed as limiting, but only as a basis for claims and as a basis for teaching one of ordinary skill in the art of the present invention.

It is a figure which shows the preparation method of an oil composition by which raw material oil is refine | purified. It is a figure which shows the preparation method of an oil composition by which a filtrate and a solid fraction are refine | purified.

Detailed Description of Preferred Embodiments
A detailed description of preferred embodiments of the invention is disclosed herein. However, it should be understood that the embodiments are merely illustrative of the invention and that the invention can be implemented in various forms. Accordingly, the details disclosed herein are not to be construed as limiting, but only as a basis for claiming and teaching a person skilled in the art of the present invention.

  The present invention provides a method for producing an oil composition rich in natural phytonutrients, containing a desired fatty acid content, especially for use in cooking foods, fried dishes, salad dressings, especially for consumer food preparation.

  First, the feedstock is refined (as shown in FIG. 1). The feedstocks are ie palm oil and other unsaturated oils. Next, palm oil containing carotene and other phytonutrients is blended with other unsaturated oils such as soybean oil and canola oil in a blend ratio range of 9: 1 to 1: 2, preferably 6: 4. . The blended oil is then heated at a temperature in the range of 40 ° C. to 50 ° C. to ensure that all crystals are destroyed prior to crystallization.

  The blended oil is then subjected to a fractionation process in order to produce a liquid fraction having a higher unsaturated fatty acid content to achieve better low temperature stability (below 6 ° C.). Unsaturated fatty acids derived from unsaturated oils can increase unsaturated fatty acids that remain in the liquid phase during the fractionation step. Thus, the process yield can be improved and the amount of liquid oil produced is increased. The oil blend ratio should match the melting point and crystallization behavior of the mixture.

  Next, a cooling process is started with a crystallizer equipped with a stirrer. The stirrer should be capable of continuous stirring at a constant rate along the process of solidification of the formed crystals. A constant speed of the agitator is desirable to control the generation of a uniform crystal size. The crystallization step can be brought to a temperature between 40 ° C. and −5 ° C. in the range of 6-24 hours, preferably 16 hours, depending on the blend ratio and type of the feedstock. In order to achieve good low temperature stability of the filtrate, the preferred holding temperature of the crystallized oil prior to filtration should be less than 18 ° C. This is because only liquid oil having good low-temperature stability that remains liquid can pass through the membrane. Oil filtration is achieved at a low temperature, preferably at a temperature of 5 ° C. to 15 ° C., with a membrane filter press of at least 400 kPa to 3000 kPa. The filtrate obtained by this filtration step has a high iodine value (IV) (at least 70) and remains liquid at cold temperatures below 6 ° C.

  The filter oil obtained by the filtration step contains 20% to 40% saturated fatty acid, 20% to 40% monounsaturated fatty acid, and 20% to 40% polyunsaturated fatty acid. The filtrate (premium oil) remains liquid at temperatures near zero degrees.

  If feedstock is not refined prior to blending and fractionation (as shown in Figure 2), add degummed, neutral or acidic bleaching soil using 0.1% concentration of phosphoric acid The filtrate and solid fraction shall be purified by controlled bleaching at 95 ° C. used at 1% and neutralization. Neutralization by the steam deodorization method should be avoided to keep a lot of carotene and vitamin E in the oil. Preferred neutralization steps include short path distillation and chemical neutralization.

  The final oil obtained by the above process contains at least 300 ppm carotene and 400 ppm vitamin E and has a cloud point of less than 6 ° C.

  The following examples illustrate the present invention and are not intended to limit the scope of the invention.

Example 1
Palm oil with the characteristics of the Palm Oil Refiners Association of Malaysia (PORAM) standard was obtained from a local plant. Palm oil is blended with soybean oil in a 6: 4 ratio. The oil is then heated to 60 ° C. and continuously stirred to ensure homogeneity. The oil is then cooled at a temperature of 50 ° C. to 14 ° C. for about 6 hours before being fractionated. For the oil composition shown in Table 1, the fraction is filtered at 18 ° C. The oil composition obtained from these conditions has saturated (mono), monounsaturated (mono) and polyunsaturated (poly) fatty acids in a ratio of approximately 1: 1: 1. The cloud point of the filtrate is 5 ° C. The carotene content and vitamin E content in the filtrate are 432 ppm and 714 ppm, respectively.

Example 2
The method described in Example 1 was repeated in another batch of palm oil blended with soybean oil in a 5: 5 ratio. The obtained results are shown in Table 2. The cloud point obtained for the filtrate is 5 ° C. The carotene content and vitamin E content in the filtrate are 315 ppm and 967 ppm, respectively.

Example 3
The process described in Example 1 was repeated with another batch of palm oil blended with soybean oil at a ratio of 8: 2, with a crystallization time of about 8 hours. For the oil composition shown in Table 3, the fraction is filtered at 14 ° C. The cloud point of the filtrate is 6 ° C. The carotene content and vitamin E content in the filtrate are 253 ppm and 938 ppm, respectively.

Example 4
The process described in Example 1 was repeated in another batch where the crystallization time was about 8 hours and the palm oil was blended with canola oil at a ratio of 8: 2. For the oil composition shown in Table 4, the fractions are filtered at 14 ° C. The cloud point of the filtrate is 5 ° C. The carotene content and vitamin E content in the filtrate are 417 ppm and 624 ppm, respectively.

Example 5
The method described in Example 1 was repeated for another batch of palm oil blended with canola oil in a 6: 4 ratio. The blended oil is cooled for about 16 hours and the final oil is at a temperature of 3 ° C. The results obtained are shown in Table 5. The cloud point of the filtrate is 6 ° C. The carotene content and vitamin E content in the filtrate are 356 ppm and 690 ppm, respectively.

Example 6
Another batch of palm oil was blended with canola oil in a 5: 5 ratio and the process described in Example 1 was repeated. The results obtained are shown in Table 6. The cloud point of the filtrate is 5 ° C. The carotene content and vitamin E content in the filtrate are 299 ppm and 578 ppm, respectively.

  While embodiments and examples of the invention have been illustrated and described, it is not intended that these embodiments and examples illustrate and describe all possible forms of the invention. Rather, the language used in the specification is word of description rather than limitation, and various modifications can be made without departing from the scope of the invention.

Claims (8)

A method for producing an oil composition that is a liquid oil at a temperature of less than 6 ° C, comprising:
i. Separately refining unrefined palm oil and unsaturated oil;
ii. Blending palm oil and unsaturated oil;
iii. Heating the blended oil at a temperature in the range of 40 ° C to 50 ° C ;
iv. Fractionating the heated blended oil to produce a liquid oil having a higher unsaturated fatty acid content than the blended oil;
v. Cooling the liquid oil with constant stirring at a temperature in the range of 40 ° C. to −5 ° C. for a period between 6 and 24 hours to produce a crystallized oil;
vi. Removing the crystallized oil from the liquid oil of the filtrate by performing filtration at a temperature in the range of 5 ° C to 15 ° C and a pressure in the range of 400 kPa to 3000 kPa .   The method of claim 1, wherein the palm oil comprises carotene or other phytonutrients or mixtures thereof.   The method of claim 1, wherein the unsaturated oil is soybean oil, canola oil, rapeseed oil, sunflower oil, or other vegetable oil, or mixtures thereof. The oil composition is
i. At least 300 ppm carotene,
ii. 4. The method according to any one of claims 1 to 3 , comprising at least 400 ppm vitamin E. A method for producing an oil composition that is a liquid oil at a temperature of less than 6 ° C, comprising:
i. A step of blending an unsaturated oil palm oil that has not been purified,
ii. Heating the blended oil at a temperature in the range of 40 ° C to 50 ° C ;
iii. Fractionating the heated blended oil to produce a liquid oil having a higher unsaturated fatty acid content than the blended oil;
iv. Cooling the liquid oil with constant stirring at a temperature in the range of 40 ° C. to −5 ° C. for a period between 6 and 24 hours to produce a crystallized oil;
v. Removing the crystallized oil from the filtrate liquid oil by performing filtration at a temperature in the range of 5 ° C to 15 ° C and a pressure in the range of 400 kPa to 3000 kPa ;
vi. And refining the crystallized oil and the liquid oil. 6. The method of claim 5 , wherein the palm oil comprises carotene or other phytonutrients or mixtures thereof. 6. The method of claim 5 , wherein the unsaturated oil is soybean oil, canola oil, rapeseed oil, sunflower oil, or other vegetable oil, or a mixture thereof. The oil composition is
i. At least 300 ppm carotene,
ii. 8. The method according to any one of claims 5 to 7 , comprising at least 400ppm vitamin E.

Images