OIL COMPOSITION HAVING GOOD STABILITY

Abstract

A high-stability oil composition including an oil and quercetagetin. Quercetagetin, as a stabilizer, can delay an oxidation process of the oil and ensure the stability of the oil. The content of the quercetagetin may be more than 1 ppm, preferably more than 5 ppm, more than 10 ppm; preferably more than 20 ppm, more than 30 ppm, more than 40 ppm, more than 50 ppm, more than 60 ppm, more than 70 ppm, more than 80 ppm, more than 90 ppm, preferably more than 100 ppm, more than 200 ppm, more than 300 ppm, more than 400 ppm, more than 500 ppm, more than 600 ppm, more than 700 ppm, more than 800 ppm, more than 900 ppm; preferably more than 1000 ppm, more than 2000 ppm, more than 3000 ppm, more than 4000 ppm, more than 5000 ppm.

Claims

1. An oil composition, comprising an oil and quercetagetin.

2. The oil composition according to claim 1, wherein the content of the quercetagetin is more than 1 ppm, preferably more than 2 ppm, more than 3 ppm, more than 4 ppm, more than 5 ppm, more than 6 ppm, more than 7 ppm, more than 8 ppm, more than 9 ppm, more than 10 ppm; preferably more than 20 ppm, more than 30 ppm, more than 40 ppm, more than 50 ppm, more than 60 ppm, more than 70 ppm, more than 80 ppm, more than 90 ppm, preferably more than 100 ppm, more than 200 ppm, more than 300 ppm, more than 400 ppm, more than 500 ppm, more than 600 ppm, more than 700 ppm, more than 800 ppm, more than 900 ppm; preferably more than 1000 ppm, more than 2000 ppm, more than 3000 ppm, more than 4000 ppm, more than 5000 ppm.

3. A method for stabilizing oil, comprising: adding quercetagetin as an oil stabilizer in the oil.

4. The method according to claim 3, wherein, the method is for improving the stability of food, feed, health care products, drugs and/or cosmetics containing oil and the stability of the raw material ingredients of the food, feed, health care products, drugs and/or cosmetics containing oil.

5. The method according to claim 3, wherein, the method is for protecting the food, feed, health care products, drugs and/or cosmetics containing oil and preventing the food, feed, health care products, drugs and/or cosmetics containing oil from oxidation loss.

6. The method according to claim 3, wherein the amount of the quercetagetin added in the oil is more than 1 ppm, preferably more than 2 ppm, more than 3 ppm, more than 4 ppm, more than 5 ppm, more than 6 ppm, more than 7 ppm, more than 8 ppm, more than 9 ppm, more than 10 ppm; preferably more than 20 ppm, more than 30 ppm, more than 40 ppm, more than 50 ppm, more than 60 ppm, more than 70 ppm, more than 80 ppm, more than 90 ppm, preferably more than 100 ppm, more than 200 ppm, more than 300 ppm, more than 400 ppm, more than 500 ppm, more than 600 ppm, more than 700 ppm, more than 800 ppm, more than 900 ppm; preferably more than 1000 ppm, more than 2000 ppm, more than 3000 ppm, more than 4000 ppm, more than 5000 ppm.

7. The method according to claim 4, wherein the amount of the quercetagetin added in the oil is more than 1 ppm, preferably more than 2 ppm, more than 3 ppm, more than 4 ppm, more than 5 ppm, more than 6 ppm, more than 7 ppm, more than 8 ppm, more than 9 ppm, more than 10 ppm; preferably more than 20 ppm, more than 30 ppm, more than 40 ppm, more than 50 ppm, more than 60 ppm, more than 70 ppm, more than 80 ppm, more than 90 ppm, preferably more than 100 ppm, more than 200 ppm, more than 300 ppm, more than 400 ppm, more than 500 ppm, more than 600 ppm, more than 700 ppm, more than 800 ppm, more than 900 ppm; preferably more than 1000 ppm, more than 2000 ppm, more than 3000 ppm, more than 4000 ppm, more than 5000 ppm.

8. The method according to claim 5, wherein the amount of the quercetagetin added in the oil is more than 1 ppm, preferably more than 2 ppm, more than 3 ppm, more than 4 ppm, more than 5 ppm, more than 6 ppm, more than 7 ppm, more than 8 ppm, more than 9 ppm, more than 10 ppm; preferably more than 20 ppm, more than 30 ppm, more than 40 ppm, more than 50 ppm, more than 60 ppm, more than 70 ppm, more than 80 ppm, more than 90 ppm, preferably more than 100 ppm, more than 200 ppm, more than 300 ppm, more than 400 ppm, more than 500 ppm, more than 600 ppm, more than 700 ppm, more than 800 ppm, more than 900 ppm; preferably more than 1000 ppm, more than 2000 ppm, more than 3000 ppm, more than 4000 ppm, more than 5000 ppm.

Description

SPECIFIC MODES FOR CARRYING OUT THE EMBODIMENTS

[0019] In order to make the purpose, technical solution and advantages of the present invention more clear, the present invention is further described in detail below in combination with the examples. It should be understood that the specific examples described herein are only used to explain the present invention, not to define the present invention.

1. Oil Composition

(1) Preparation of Experimental Examples

[0020] The preparation method of the oil composition containing quercetagetin is as follows.

[0021] (i) Three portions of chicken oil and beef fat were taken, 100 g each, respectively, to which quercetagetin was added with an amount of 4 ppm, 6 ppm, and 8 ppm, respectively, and the resultants were stirred evenly.

[0022] (ii) 150 g of fish oil powder were taken, 0.075 g (experimental group 1), 0.15 g (experimental group 2) and 0.3 g (experimental group 3) of quercetagetin were added respectively, and the resultants were mixed evenly.

(2) Preparation of Comparative Examples

[0023] (i) Ethoxyquinoline control group: one portion of chicken oil and one portion of beef fat with 100 g each were taken, to which ethoxyquinoline was added with an amount of 150 ppm; [0024] (ii) BHT control group: one portion of chicken oil and one portion of beef fat with 100 g each were taken, to which BHT was added with an amount of 150 ppm.

2. Feed Composition Containing Vitamin

[0025] The composition proportion of pig feed used in this experiment is shown in Table 1, wherein it was guaranteed that vitamin A is 4000 IU/kg and vitamin E is 45 IU/kg.

TABLE-US-00001 TABLE 1 Composition of pig feed used in antioxidant effect test Feed composition Percentage/% Corn 49.5 Bran 5.0 Bean Cake 21.0 Fine wheat bran 10.0 Paddy 12.0 Bone Meal 1 Shell powder 0.6 Table salt 0.4 Vitamin/mineral premix 0.5

(1) Preparation of Experimental Examples

[0026] Pig feed composition: three portions of pig feed as shown in Table 1 above were taken, 100 g each, to which quercetagetin was added with an amount of 4 ppm, 6 ppm, and 8 ppm, respectively, and the resultants were stirred evenly.

(2) Preparation of Comparative Examples

[0027] (i) Ethoxyquinoline control group: one portion of 100 g of pig feed as shown in Table 1 above was taken, to which ethoxyquinoline was added with an amount of 150 ppm; [0028] (ii) BHT control group: one portion of 100 g of pig feed as shown in Table 1 above was taken, to which BHT was added with an amount of 150 ppm;

3. Feed-Grade Lutein Powder Composition

(1) Preparation of Experimental Examples

[0029] Feed-grade lutein powder composition: 100 g of feed-grade lutein powder was taken, quercetagetin was added with an amount of 3%, and the resultants were stirred evenly.

(2) Preparation of Comparative Examples

[0030] 100 g of feed-grade lutein powder was taken, ethoxyquinoline was added with an amount of 3%, and the resultants were stirred evenly.

[0031] Study of Stability Effect:

[0032] 1. Oil [0033] (1) 100 g of ordinary chicken oil and 100 g of ordinary beef fat were taken as the blank control groups;

[0034] The oils or oil compositions prepared in the above blank control groups, the above experimental examples and comparative examples were placed in a 40° C. incubator, the samples were taken at 0, 3rd, 7th, 14th, 21th and 28th day respectively to detect the peroxide value of each group. The results are shown in Table 2 and Table 3. Compared with ordinary chicken oil and beef fat, when quercetagetin exists in the oil, it can delay the process of oil oxidation loss. The effect of quercetagetin with the content of 8 ppm, is equivalent to that of 150 ppm of ethoxyquinoline or BHT.

TABLE-US-00002 TABLE 2 Evaluation on peroxide value of chicken oil containing quercetagetin Chicken oil containing quercetagetin Ordinary Content of quercetagetin Ethoxyquinoline BHT Days chicken oil 4 ppm 6 ppm 8 ppm 150 ppm 150 ppm 0 1.116 ± 0.039  1.125 ± 0.100.sup.  1.053 ± 0.088.sup.  1.077 ± 0.037.sup.  1.104 ± 0.071.sup.  1.041 ± 0.056.sup.  3 1.256 ± 0.070   1.119 ± 0.048.sup.ab  1.109 ± 0.072.sup.ab  1.110 ± 0.115.sup.ab 1.100 ± 0.055.sup.b 1.137 ± 0.022.sup.b 7 1.853 ± 0.027.sup.a 1.402 ± 0.051.sup.b 1.398 ± 0.069.sup.b 1.333 ± 0.019.sup.b 1.129 ± 0.034.sup.c 1.219 ± 0.147.sup.b 14 2.601 ± 0.239.sup.a 2.405 ± 0.044.sup.b 2.214 ± 0.106.sup.c 1.560 ± 0.072.sup.a 1.564 ± 0.100.sup.d 1.632 ± 0.030.sup.d 21 5.199 ± 0.304.sup.a 3.856 ± 0.043.sup.b 3.291 ± 0.257.sup.c 2.901 ± 0.169.sup.c 2.852 ± 0.376.sup.c 2.913 ± 0.131.sup.c 28 5.920 ± 0.592.sup.a 5.703 ± 0.311.sup.a 3.544 ± 0.695.sup.b 3.222 ± 0.378.sup.b 2.959 ± 0.045.sup.b 3.208 ± 0.167.sup.b Note: In the superscripts of data of the same column or row, the same lowercase letters indicate no significant difference (P > 0.05); the different lowercase letters indicate significant difference (P < 0.05); and the different capital letters indicate extremely significant difference (P < 0.01). The following is same as above.

TABLE-US-00003 TABLE 3 Evaluation on peroxide value of beef fat containing quercetagetin Peroxide value (mmol/kg) Beef fat containing quercetagetin Ethoxy quinoline BHT Days Ordinary beef fat 4 ppm 6 ppm 8 ppm 150 ppm 150 ppm 0 1.550 ± 0.057  1.519 ± 0.010.sup.  1.477 ± 0.101  1.582 ± 0.145.sup.  1.538 ± 0.104.sup.  1.403 ± 0.026.sup.  3 1.857 ± 0.112.sup.a  1.612 ± 0.101.sup.bc 1.593 ± 0.190.sup.b  1.607 ± 0.015.sup.bc  1.496 ± 0.118.sup.bc 1.470 ± 0.059.sup.b 7 2.212 ± 0.093.sup.a 2.128 ± 0.077.sup.a 1.891 ± 0.078.sup.b 1.636 ± 0.152.sup.b 1.587 ± 0.211.sup.b 1.625 ± 0.064.sup.b 14 2.738 ± 0.100.sup.a 2.303 ± 0.121.sup.b 1.950 ± 0.077.sup.c 1.754 ± 0.043.sup.c 1.636 ± 0.107.sup.c 1.699 ± 0.095.sup.c 21 3.211 ± 0.162.sup.a 2.956 ± 0.068.sup.b 2.307 ± 0.196.sup.c 2.017 ± 0.110.sup.d 1.909 ± 0.256.sup.d 1.969 ± 0.084.sup.d 28 4.475 ± 0.321.sup.a 3.192 ± 0.237.sup.b 2.732 ± 0.100.sup.c 2.221 ± 0.161.sup.c 2.215 ± 0.240.sup.c 2.499 ± 0.298.sup.c [0035] (2) 150 g of fish oil powder was taken as a blank control group;

[0036] The oil powder or oil powder composition prepared by the above blank control group and the above experimental example were placed in an oven, kept at 40° C. and high humidity, to conduct strong oxidation experiments. The samples were taken at 0, 3rd, 6th, 9th, 12th, and 15th day respectively to detect a peroxide value of each group. The results are shown in Table 4. Compared with the blank fish oil powder, when quercetagetin exists, it can delay the process of oxidation loss of the fish oil powder.

TABLE-US-00004 TABLE 4 Evaluation on peroxide value of fish oil powder containing quercetagetin Peroxide value (mmol/kg) Item 0 d 3 d 6 d 9 d 12 d 15 d Control group 2.16 2.36 6.41 69.07 84.76 170.69 Experimental group 1 2.16 3.34 4.47 13.73 19.31 87.3 Experimental group 2 2.16 2.01 4.49 9.4 12.79 20.18 Experimental group 3 2.16 1.9 3.9 8.27 10.87 22.86

[0037] 2. Feed Containing Vitamin

[0038] 100 g of pig feed shown in Table 1 was taken as a blank control group;

[0039] The pig feed compositions prepared by the above blank control group, the above experimental examples and comparative examples were sealed in plastic bags and stored at room temperature. Samples were taken at 0, 14th, 28th, 49th and 77th day respectively to detect the contents of vitamin A and vitamin E in each group. The results show (Table 5) that during the storage of the pig feed for 0-77 days, compared with the ordinary pig feed, the contents of vitamin A and vitamin E in the pig feed containing quercetagetin are more consistent at different times, that is, the process of oxidation loss of vitamin A and vitamin E is not effectively delayed; Compared with the pig feed containing ethoxyquinoline or BHT, the oxidation loss of vitamin A and vitamin E in the pig feed containing quercetagetin is faster.

TABLE-US-00005 TABLE 5 Evaluation on vitamin stability of pig feed containing quercetagetin Content of vitamin (IU/kg) Ordinary Quercetagetin Ethoxyquinoline BHT Days Vitamin species pig feed 4 ppm 6 ppm 8 ppm 150 ppm 150 ppm 0 A 4150 4150 4150 4150 4150 4150 E 46.0 46.0 46.0 46.0 46.0 46.0 14 A 4050 4050 4050 4100 4150 4150 E 45.2 45.0 45.1 45.5 45.9 45.6 28 A 3750 3700 3800 3800 3900 3800 E 41.6 41.8 40.7 42.1 43.9 42.5 49 A 3350 3400 3450 3250 3450 3400 E 37.3 37.0 36.8 37.6 38.0 37.2 77 A 2700 2700 2650 2650 2750 2700 E 32.1 31.5 30.9 32.0 32.8 31.8

3. Feed-Grade Lutein

[0040] 100 g of feed-grade lutein powder was taken as a blank control group;

[0041] The feed-grade lutein powder compositions prepared by the above blank control group, the above experimental examples and comparative examples were stored at 25° C. in the dark for 20 days, at 25° C. in the indoor natural light for 20 days, at 25° C. in the dark and sealed for 20 days, and at 140° C. by heating for 1 hour respectively to detect contents of lutein and calculate the loss ratio of lutein. The results show that (Table 6), compared with the blank control group, the loss of lutein content in the feed-grade lutein powder containing quercetagetin is relatively consistent under different conditions, that is, the presence of quercetagetin does not effectively delay the loss process of lutein.

TABLE-US-00006 TABLE 6 Evaluation on a loss of content of feed- grade lutein containing quercetagetin Loss at Loss at Loss at 25° C. 25° C. Loss at 25° C. in the indoor in the dark 140° C. in the dark natural light and sealed by heating for 20 days for 20 days for 20 days for 1 hour Blank group 17.15% 25.23% 7.84% 10.24% Example 16.58% 25.67% 7.94% 9.45% Comparative 8.54% 13.68% 3.55% 6.21% example

INDUSTRIAL APPLICABILITY

[0042] The present invention provides a high-stability oil composition containing oil and quercetagetin. Quercetagetin, as a stabilizer, can delay an oxidation process of oil and ensure the stability of oil. The oil composition provided by the present invention has good economic value and application prospect.