JPH10179027A - Oily composition and frozen food - Google Patents

Abstract

PROBLEM TO BE SOLVED: To obtain an oily compsn. for suppressing the moisture migration in frozen food capable of prohibiting the movement of moisture and producing high-quality food even if low-moisture components come into contact with high- moisture components by incorporating a prescribed amt. of a specific glyceride into fats and oils. SOLUTION: 1-Position or 3-position satd., di-unsatd. glyceride (SUU) and 2-position unsatd., di-satd glyceride (SUS) are incorporated at >=40wt.% in total into the fats and oils and the SUU is incorporated at 3.0 to 4.5 weight times the SUS. This oily compsn. preferably contains oily materials, such as satd. fatty acid monoglyceride, having a m.p. of >=50 deg.C. The oily compsn. is preferably made to exist between the low-moisture components, such as sugar con, Monaka (a wafer cake filled with red or white bean jam) crusts, nuts, serial flakes, serial puff, fried batter, bread flour, etc., and the high-moisture components, such as ice cream, ingredients for frying, etc.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an oily composition for suppressing moisture transfer in frozen food and a frozen food using the same.

[0002]

2. Description of the Related Art Heretofore, in ice creams using a corn cup or monaca skin as an edible container, chocolate is often used as a coating material on the inner surface of the edible container. This is for the purpose of flavoring chocolate to ice creams (including not only ice cream but also “lacto ice” and “ice milk” having a low milk solid content or amount of milk fat. The same applies hereinafter). The purpose is to prevent the transfer of water over time from the edible container to the edible container, and to maintain the texture of the edible container in a good state. However, in the current product cycle in the actual market, it is still not possible to say that it has sufficient moisture transfer inhibiting ability.

[0003] A method of coating frozen molded frozen desserts and edible containers with an edible oil / fat coating agent (Japanese Patent Application Laid-Open No. 57-170147), or a method in which an edible container is inclined with respect to a vertical axis and flows on the inner surface thereof while rotating. A method of coagulating a foamy ice-coated chocolate in a flowing state (Japanese Patent Laid-Open No. 5-3161931) can be seen. However, these known methods have the disadvantage that the process or equipment is complicated.

[0004] Further, in a product in which low-moisture materials such as roasted almonds and corn flakes are mixed in chocolate and coated on bar-shaped ice creams, the texture of the low-moisture materials inherently possesses It is difficult to maintain a good texture over a long period of time with existing technologies, and there has been a problem that the commercial value gradually decreases during storage.

As described above, there has been no food material that is sufficiently effective to suppress the transfer of water from a high-moisture component to a low-moisture component in the freezing temperature range and maintain commercial value over a long period of time.

[0006]

SUMMARY OF THE INVENTION The present invention relates to an oily composition having an extremely high ability to inhibit the movement of moisture even when a low moisture component contacts a high moisture component in a freezing temperature range, and a refrigeration using the same. It is intended to provide food.

[0007]

DISCLOSURE OF THE INVENTION The present invention has been accomplished as a result of intensive studies to achieve the above object, and it has been found that 1- or 3-position saturated, diunsaturated glyceride (SUU) is contained in fats and oils.
And a total of at least 40% by weight of 2-unsaturated and di-saturated glycerides (SUS), and SUU is 3.0 to SUS.
An oily composition for suppressing moisture transfer in frozen food, which is contained in an amount of up to 4.5 times by weight, and a frozen food in which this oily composition is present between a low moisture component and a high moisture component.

First, the oily composition of the present invention and its production method will be described.

[0009] S in SUU and SUS is a saturated fatty acid having 12 to 22 carbon atoms, preferably 16 to 18 carbon atoms in S.
Occupies most of the food when eating, and especially when eating at relatively low temperatures (refrigerated to frozen temperatures),
16 is the best. U is an unsaturated fat having 16 or more carbon atoms, preferably oleic acid or linoleic acid.

The ratio of SUU to SUS in fats and oils is (3-4.
5) It should be contained in a weight ratio of 1: 1. If the amount of SUU is small, the amount of crystals is too large in the freezing temperature range to form a minute gap, and it is difficult to prevent moisture transfer. Even when cooled from a molten state to a working temperature range around -20 ° C., the amount of crystals is small and it becomes difficult to distribute and immobilize as uniformly as possible on food materials.
It is difficult to prevent moisture transfer when using a thickness less than about. The sum of SUU and SUS is 40% by weight.
If it is less than the above, it is still difficult to prevent the transfer of water, and it is preferable that the total is 45% by weight or more. When such fats and oils are transferred to the freezing temperature range, it is possible to form a dense film-like substance in which fine gaps are unlikely to be formed, and suppress the transfer of water between frozen food components.

[0011] Suitable fats and oils constituting the oily substance can be obtained by fractionating from palm oil, and so-called palm olein or palm super olein, which is a fractionated oil having an iodine value of 48 or more, can be suitably used. .

However, any fats and oils may be used as long as they satisfy the above essential requirements as a whole, such as rapeseed oil, soybean oil, sunflower seed oil, cottonseed oil, peanut oil,
Vegetable oils such as rice bran oil, corn oil, safflower oil, olive oil, kapok oil, sesame oil, evening primrose oil, palm kernel oil, coconut oil, shea butter, monkey fat, cocoa butter, milk fat, tallow,
Fats and oils such as animal fats and oils such as lard, fish oil and whale oil can be used.

When the oily composition further contains a small amount of an oily substance having a melting point of 50 ° C. or more, the workability for use in frozen foods is improved, and the moisture transfer resistance in the frozen foods is improved. 0.1% by weight of such oily substances based on fats and oils
As described above, the amount is preferably in the range of 0.5 to 5%. If the amount is insufficient, rapid crystallization of the fat or oil from the molten state to the cooled state is difficult to occur, and it takes time to reduce workability. Before dripping or solidifying, the distribution may become non-uniform and the moisture transfer resistance may not be sufficient. Such oily substances include, for example, monoglycerides having a fatty acid having a chain length of 12 or more, preferably a fatty acid having a chain length of 18 to 24 as a constituent fatty acid, and hardened oils such as rapeseed oil and fish oil.
Fats and oils containing long chain saturated fatty acids of from 22 to 22 can be suitably used.

It is preferable to use such a high-melting oily substance once completely dissolved in fats and oils. For this purpose, the oily substance is mixed with the fats and oils at a temperature according to the melting property or solubility of the oily substance to be used, and the fluidity is still reduced. It is preferable to spray or apply at a temperature higher than normal temperature so as not to be lost, and to quickly solidify in a working atmosphere. As a result, crystals of the high-melting oily substance are precipitated first, which promotes the crystal growth of solid fats such as SUS in fats and oils, and creates a three-dimensionally strong network structure. It is presumed that the gap between the crystals is closed by enclosing the oil to prevent the transfer of moisture. Therefore, when a high melting point oily substance is not used, it is necessary to take time until the fat or oil has a certain degree of solidification or to lower the cooling temperature.

The above oily composition can function as an inter-component barrier for frozen foods having a moisture transfer preventing function. The oily composition may be an oil or fat itself, or may be used in a form containing other solid matter such as coated chocolate, and can impart any flavor and color tone.

In the present invention, it is sometimes preferable that the oily composition contains a solid content other than fats and oils from the viewpoint of further enhancing the function of preventing moisture transfer. For example, when ice cream is filled immediately after coating a cone cup with an oily composition such as cone ice, the formed film is not completely solidified. This is because it contributes to the target strength and, subsequently, to the prevention of moisture transfer.

Examples of usable solids include known chocolate components such as whole milk powder, skim milk powder, cacao mass, cocoa powder and sugar, as well as known powdered foods and food materials such as starch and powdered cheese. Can be
The ratio of (oil / fat) / (other solid matter) is 4: 6 to 10:
It is preferably used in the range of 0.

Another invention in this application is a frozen food in which the above-mentioned oily composition is interposed between a low moisture component and a high moisture component.

The method of using the above oily composition is a method conventionally used using fats and oils such as coating, spraying, dipping, and overlaying on a low moisture component or a high moisture component which is a frozen food material. It can be done easily.

The low moisture components include corn ice cones (also known as sugar corn), monaca ice monaca skin, almond nuts, peanuts, and other nuts, cereals such as corn flakes, cereal puffs, fry coats, bread crumbs, and the like. The high moisture component is a so-called seed material (fried seed) of ice creams and fried foods
Etc. can be exemplified.

As a method of interposing the oily composition between the low moisture component and the high moisture component, it is common to mix or contact one of the components previously coated with the oily composition with the other component. For example, a method in which the inner material, the oily composition, and the outer material composition are extruded in three layers using an encrusting apparatus is also possible.

The food of the present invention obtained by interposing a high-moisture component, a low-moisture component, and an oily component therebetween has a reduced moisture transfer between these components even when stored at a freezing temperature range. Foods with good value can be manufactured.

[0023]

EXAMPLES The present invention will be described more specifically with reference to examples and comparative examples, but the scope of the present invention is not limited to these examples. In the examples, parts and% mean weight basis.

Example 1 and Example 2 Palm fractionated oil A (SUU 38.5%, SUS 11.
5%, an iodine value of 68 and a softening point were measured by the Oil and Fats Association of Japan standard fat and oil analysis test method 2.3.4.3-86 but could not be measured. ) Or behenic acid monoglyceride (distilled monoglyceride) was previously mixed and dissolved at 70 ° C. to prepare a chocolate dough by the usual method with the composition shown in the following table.

---------------------------------------------------------------------------------------------------------- Example 1 Example 2 Example 3 Example 3------------------------------------------- --------------------------------------------------------- Palm fractionated oil A 50.0 48.5 67.9 Cocoa 10.0 10.0 6. 0 Sugar 39.65 39.65 23.65 Lecithin 0.3 0.3 0.3 Vanilla flavor 0.05 0.05 0.05 0.05 Stearic acid monoglyceride 0.0 1.5 2.1 ------ −−−−−−−−−−−−−−−−−−−−−−−−−−−−−−

In Example 1, it was necessary to spray 6 g of the chocolate dough in a -20 ° C. atmosphere at 35 ° C. onto the inner surface of a cone cup having a surface area of about 75 cm 2 and then let it stand for 10 minutes. In No. 3, the chocolate layer could be immediately adhered in a uniform thickness by spraying 6 g of the chocolate dough at 50 ° C. onto the inner surface of the cone cup as it was at room temperature. These cone cups were filled with lacto ice (overrun 50%) discharged from a continuous ice cream freezer (manufactured by Daito Food Machinery Co., Ltd.), and the top surface was covered with the same chocolate dough. Use this as a shock freezer (T
OBI DEKOR CO. LTD, HOLLAND)
For 1 hour.

The corn ice prepared as described above was sealed, individually packaged, stored at -15 ° C., and the state of the corn was observed over time. As a result, after 6 months, the moisture content of the corn was 10.0%, 8.3% in the order of Examples 1, 2 and 3, and
9.0%, and all had good hardness and texture. When the cone ice was cut open and the cross section was examined, in each example, the chocolate layer was attached to the cone with a uniform thickness.

Comparative Examples 1 to 3 Instead of palm fractionated oil A, palm fractionated oil B (SUU
3.0%, SUS 67.0%, iodine value 34, softening point 3
0 ° C), soybean oil (SUU 29.3%, SUS5.9)
%, Iodine value 132, softening point cannot be measured) or a mixed oil of (soy oil, coconut oil and fractionated palm oil C) (SUU 2
0.6%, SUS 18.3%, iodine value 58, softening point 1
A cone ice was prepared in the same manner as in Example 2 except that 7.5 ° C.) was used.

[0029] Comparative Example 1 Comparative Example 2 Comparative Example 3------------------------------------------------ −−−−−−−−−−−−−−−−−−−−−−−−−−− Palm fractionated oil B 48.5% −− Palm fractionated oil C − − 24.0 Palm oil − −14 5.5 soybean oil-48.5 10.0 cocoa 10.0 10.0 10.0 10.0 sugar 39.65 39.65 39.65 lecithin 0.3 0.3 0.3 vanilla flavor 0.05 0.050 .05 stearic acid monoglyceride 1.5 1.5 1.5-----------------------------

In Comparative Examples 1 and 3, the water content of the corn reached 15% in 3 weeks, became soft, and the commercial value was impaired. And although the chocolate layer of the cone cross section was uniform, fine gaps were observed. Also in Comparative Example 2, the moisture content of the corn reached 15% in the third week,
The chocolate layer with a cone cross section was pushed away by the pressure at the time of filling the ice creams, and was thin and non-uniform, which also impaired the commercial value.

[0031]

As described above, by using the oily composition of the present invention, foods having both high and low moisture components can be prevented from increasing in the freezing temperature range by increasing the moisture content of the low moisture components. It has become possible to maintain texture such as toothache and chewing response.

 ──────────────────────────────────────────────────続 き Continuing on the front page (72) Inventor Yoichi Tashiro 4-3 Kinokudai, Yawahara-mura, Tsukuba-gun, Ibaraki Pref. Fujitsu Ltd. Tsukuba R & D Center

Claims (6)

[Claims] 1. A fat or oil containing 40% by weight or more of 1- or 3-position saturated, di-unsaturated glyceride (SUU) and 2-position unsaturated, di-saturated glyceride (SUS) in a total amount of at least 40% by weight. An oily composition for suppressing moisture transfer in frozen food, which is contained in an amount of 3.0 to 4.5 times by weight. 2. The oily composition according to claim 1, which contains an oily substance having a melting point of 50 ° C. or higher. 3. The oily composition according to claim 2, wherein the oily substance is a saturated fatty acid monoglyceride. 4. The method according to claim 1, further comprising a solid content other than fats and oils.
The oily composition according to the above. 5. A frozen food wherein the oily composition according to claim 1 is present between a low moisture component and a high moisture component. 6. The low moisture component is sugar corn, monaca skin,
6. The frozen food according to claim 5, wherein the frozen food is nuts, cereal flakes, cereal puffs, fry batter, or bread crumbs, and the high moisture component is ice cream or fried varieties.