JPS6057814B2 - Cooking oil - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a novel edible oil containing palm oil and corn oil, in which the mixing ratio (by weight) of the former to the latter is 45:55 to 1/3''0.

Palm oil generally has excellent oxidation stability, is strong and can withstand repeated use, drains well, has a light flavor, and is inexpensive and economical, so its domestic consumption has increased rapidly in recent years. is increasing.

Furthermore, unlike many other oil crops, oil balm, which is the source of palm oil, is perennial, and once planted, it has the characteristic of having an economic age of two or more years, so it is expected that production will expand. . In addition, cultivation is progressing rapidly in production areas, and it is attracting attention as a new food resource. It is known that when the lipid concentration in the blood increases abnormally, adult diseases such as heart disease, mainly arteriosclerotic disease, and cerebrovascular disorders increase rapidly.

These serum lipids associated with arteriosclerosis are mainly cholesterol, and it is thought that a high blood cholesterol concentration has a significant influence on the development of arteriosclerosis. One of the exogenous factors that greatly influences serum cholesterol is known to be related to fats and oils ingested with food. As a result of quantitative analysis of its influence, it was found that it acts in the direction of increasing serum cholesterol with about twice the influence of polyunsaturated fatty acids such as saturated fatty acid linoleic acid, which is a component of lipids. It has been revealed that monounsaturated fatty acids have almost no effect on cholesterol, but polyunsaturated fatty acids have the opposite effect on cholesterol. Based on these epidemiological and experimental studies, in order to not raise serum cholesterol, it is necessary to reduce the intake of cholesterol, but also to reduce the intake of saturated fatty acids as much as possible and increase the intake of polyunsaturated fatty acids. It was concluded that this is preferable, and the use of vegetable oils and fats containing more polyunsaturated fatty acids than animal oils and fats has been recommended for the prevention of adult diseases, especially arteriosclerosis. When palm oil is evaluated from this perspective, palm oil has the above-mentioned advantages, but despite being a vegetable oil, it has a significantly high saturated fatty acid content, and palm oil intake has the disadvantage of increasing serum cholesterol. It cannot be denied that there is. The present inventor has determined that palm oil and corn oil are 45:55 to 1.
If mixed at a composition ratio (weight) of 0 to 9, it is possible to suppress the rise in serum cholesterol levels in the same way as corn oil alone, and the taste is almost the same as with corn oil alone. They discovered this and completed the present invention.

It is true that mixing different types of fats and oils has been practiced for a long time, but in general, it is a method that absorbs price fluctuations of raw materials for fats and oils and provides products at stable prices to consumers. This has been carried out with the aim of improving various physical properties, such as taste and flavor. Attempts to produce such effects are unprecedented in the art. As mentioned earlier, the intake of fats and oils has a large effect on the increase or decrease of blood cholesterol concentration, and in particular, it is greatly influenced by the composition of its constituent fatty acids.

Furthermore, it is contained in oil and fat products. So-called unsaponifiable components are also known to influence blood cholesterol levels. Fats and oils have different compositions of fatty acids and unsaponifiable components depending on their type, and when ingested, have different effects on blood cholesterol levels. In this regard, many studies have been conducted on how various oils and fats individually affect blood cholesterol. However, no research has been conducted on the effects of blending fats and oils on blood cholesterol after ingestion of the resulting product. One reason for this is thought to be that the effect that occurs when oils and fats are mixed is simply an additive effect of the characteristics of each individual oil and fat before mixing, and this was quickly determined.

In fact, the present inventors have recognized the existence of such combinations during the course of their research. The nature of the present invention thus overturns simple expectations, and it is believed that when palm oil and corn oil are mixed, a unique effect will appear that would not be expected by simply adding together their effects on blood cholesterol levels. is rooted in new discoveries.

In other words, when palm oil and corn oil are mixed, the effect of corn oil on increasing blood cholesterol levels is significantly reduced.
There is no linear relationship between the mixing ratio of the two, and especially between the mixing ratio of 10 to 45% palm oil and 9077 to 55% corn oil, the ability to suppress blood cholesterol elevation is lower than that of corn oil alone. It was found that it is not inferior in the slightest, and even shows superior effects. The present invention, which applies these new findings, has created a formulation that has excellent nutritional properties to prevent and prevent increases in blood cholesterol levels, and also takes into account several of the inherent advantages of palm oil. Oil will be provided, which will be of great benefit to the world.

The palm oil used in the present invention is not particularly limited and may be any oil obtained from palm, and when fractionated palm oil with a low melting point is used, the effect is further enhanced. The corn oil used in the present invention is not particularly limited as long as it is obtained from corn.

All edible oils containing palm oil and corn oil in the above weight ratio are products of the present invention, and may contain, for example, other types of oil or additives required to maintain quality.

Hereinafter, the present invention will be specifically explained with reference to Examples.

Example 1 After feeding 28-day-old male Sprague-Dore rats on commercial feed for 5 days, they were divided into sections, with 10 rats per section and an average weight of 1.
Use 15.2±4.0f and mix corn oil and palm oil 10(7)0175 to 25.50X! 25 to 7 to 15
The animals were fed for 28 days with a diet in which 10% of the edible oil was blended in 5 stages (5:5, 0:100).

Food and water were provided ad libitum. After breeding, fast for a while,
Blood was collected under ether anesthesia, and serum was collected using a conventional method. Total cholesterol in serum was measured using a kit (ChOlesterOlB-TestWOkO) manufactured by Wako Pure Chemical Industries, Ltd. The composition of the test feed is shown in Table 1, and the chemical composition of the fats and oils used in the test is shown in Table 2. The sample edible oil was prepared by dissolving palm oil at 50'C and blending it with corn oil at the above mixing ratio (weight).

1k9 of vitamin E acetate is added to the feed as an antioxidant.
100m9 was added per feed. *1: Manufactured by Oriental Yeast Kogyo Co., Ltd.: Contains Hakopani *2: Manufactured by Eisai Co., Ltd.: Diluted with 1 hako The breeding production and serum total cholesterol level used are shown in Table 3.

From the following results, the edible oil of the present invention has no effect on breeding performance such as average weight gain, average food consumption, and feed efficiency, and autopsy findings show no particular abnormalities other than liver enlargement due to cholesterol loading. I couldn't help it.

Serum cholesterol level is determined by the mixing ratio of corn oil and palm oil,
Although no significant difference was observed between 10(7)O and 50:50, when the proportion of palm oil was 50% or more, the serum cholesterol level increased significantly. Deriving this relationship from an orthogonal polynomial, Y=208.4-92.6X+2
2.7X2Y: Serum cholesterol M9/DLX: It was revealed that it is expressed by a quadratic function with the mixing ratio of corn oil and palm oil.

The results are shown in Figure 1. From this, it can be seen that a mixed oil in which the mixing ratio (weight) of palm oil and corn oil is 45:55 to 1(7)90 is excellent in terms of cholesterol-lowering effect. Example 2 After feeding 28-day-old Sprague Dole male rats with commercially available feed for 5 days, they were divided into 10 groups.
We used corn oil and fractionated palm oil of 1 (1): 0175: 2 (5 (7)
) The animals were fed for 28 days with a diet in which 10% of the edible oil was added to the feed, which was a five-stage blend of 50:50, 25:7, and 0:100.

The breeding method and measurement method were the same as in Example 1. The composition of the test feed is shown in Table 1, and the chemical composition of the fats and oils used in the test is shown in Table 2. To prepare the sample edible oil, add 1 part palm oil
The liquid fractionated palm oil separated at 6°C was heated to room temperature (25°C).
) and blended with corn oil at the above mixing ratio (weight).

1k9 of vitamin E acetate is added to the feed as an antioxidant.
100m9 was added per feed. Breeding performance and serum total cholesterol values are shown in Table 4.

From the above results, the blended oil of palm fractionated oil and corn oil has no effect on breeding performance, and the autopsy findings of Example 1
It was equally desirable.

No significant difference was observed in serum cholesterol levels between the mixture ratios of corn oil and fractionated palm oil of 1 (1) versus 0 to 5 (7) 50. When the mixing ratio of fractionated palm oil was 50% or more, the serum cholesterol level increased, but the degree of increase was smaller than that of blended oil of palm oil and corn oil. When this relationship is derived from an orthogonal polynomial, it is expressed as Y=154.1-36.9X+%■ Y: Serum cholesterol M9/Dt X: Mixing ratio of corn oil and fractionated palm oil and a quadratic function.

When illustrated, it looked like FIG. 2. From this, it can be seen that a mixed oil in which the mixing ratio (weight) of palm oil and corn oil is 45:55 to 10,890 is excellent in terms of cholesterol-lowering effect.

[Brief explanation of the drawing]

1 and 2 illustrate the results of Examples 1 and 2, respectively.

Claims (1)

[Claims] 1 Edible oil containing palm oil and corn oil, the mixing ratio (weight) of the former to the latter being 45:55 to 10:90.