JPS6346107B2 - - Google Patents

Description

[Detailed description of the invention]

The present invention relates to an oil and fat composition that is soft over a wide temperature range, has excellent heat resistance, and is easy to handle. More specifically, the base is hydrogenated rapeseed oil with an iodine value of 85 to 100, soft hydrogenated palm oil, which is a medium melting point oil with an elevated melting point of 23°C to 32°C, and contains 30% or more of fatty acid groups with a carbon number of 20 or more. A high-melting rapeseed hydrogenated oil with an elevated melting point of 55°C or higher, and optionally a hydrogenated vegetable oil with an iodine value of 90 to 110. It is easily fluidized, soft over a wide temperature range, and has good heat resistance. , oil and fat compositions suitable for edible creams, ointments, etc. Conventionally, plastic resins made by rapidly cooling and kneading animal and vegetable oils and fats have been used for edible creams, ointments, etc. (hereinafter referred to as creams); Since it can only be used in the summer, solid-liquid separation occurs under high temperatures such as in the summer, and it has the disadvantage that it does not return to its original physical properties even when cooled again. In addition, since it is solid, the workability of measuring, preparing, etc. is not easy at all. On the other hand, as oils and fats that are easy to handle and can be used over a wide temperature range, fluidized shotoning, which is a highly hydrogenated oil in a liquid oil and β-type crystals dispersed in an emulsifier, is typified by USP3595674. However, because it is fluid, it cannot be used in creams that require shape retention, and although it is relatively stable at high temperatures compared to ordinary plastic fats and oils, it is not sufficient and cannot be used over time. Dispersed crystals separate and settle on a daily basis. The present inventors have completed the present invention as a result of extensive research into an oil and fat composition that eliminates these drawbacks, has excellent operability, and exhibits good properties when made into a cream. An object of the present invention is to obtain an oil and fat composition that is easily fluidized by physical force, is soft over a wide temperature range, and has excellent heat resistance. The oil and fat composition of the present invention contains 60-96% hydrogenated rapeseed oil with an iodine value of 85-100, 0-36% hydrogenated vegetable oil with an iodine value of 90-110, and an elevated melting point of 23°C as a medium melting point part.
It consists of 2-25% of palm soft hydrogenated oil at ~32℃, and 2-8% of high erucine rapeseed hydrogenated oil that contains 30% or more of fatty acid groups with 20 or more carbon atoms as the high melting point part and has an elevated melting point of 55℃ or higher, and is thixotropic. It is characterized by being soft and heat resistant over a wide temperature range. The oil and fat composition of the present invention can be obtained by rapidly cooling and kneading the above-mentioned composition using the same manufacturing method as that for ordinary plastic shot toning. Among the compositions used in the present invention, slightly hydrogenated rapeseed oil is the base oil of the present invention, and has an iodine value of 85 to 85.
100, preferably 88 to 96, at least 60%, preferably at least 70%. There are no particular limitations on the type of rapeseed oil, but from a nutritional standpoint, a low-erucine one is preferred. The high melting point fat/oil is 2 to 8%, preferably 3 to 8%, high erucinated rapeseed hydrogenated oil with an elevated melting point of 55°C or higher, containing 30% or more, preferably 35% or more, of fatty acid groups having 20 or more carbon atoms.
Use 6%. Used to provide heat resistance,
By combining it with a slightly hydrogenated rapeseed oil base, solid-liquid separation at high temperatures can be prevented. Even if soft hardened palm oil, which is an oil with a medium melting point, is not used, an effect similar to that of the present invention can be obtained to some extent, but it is used to perfect the effect. In consideration of the heat resistance enhancement effect and the effect on hardness at low temperatures, use 2 to 25%, preferably 3 to 15%, of palm soft hardened oil with an elevated melting point of 23°C to 32°C, preferably 25°C to 30°C. do. It is not necessary to use vegetable hydrogenated oil resin, but as long as it has an iodine value of 90 to 110, it can be used up to 36% without adversely affecting the effect of the present invention.
Desirably 20% or less. When oils and fats other than slightly hydrogenated rapeseed oil, such as liquid oils and other hydrogenated oils and fats, are used as the base oil of the present invention, sufficient thixotropy and heat resistance cannot be obtained, and high As the melting point,
When oils and fats other than those of the present invention are used, such as extremely hard beef tallow and extremely hard palm fat, the heat resistance is significantly inferior. The characteristics and effects of the oil and fat composition of the present invention are as follows. It has excellent thixotropy, is easily fluidized by physical force, and has excellent operability. It is soft over a wide temperature range, does not become hard even at low temperatures, and does not sag even at high temperatures, so there is no need to adjust the hardness depending on the season or region. It does not cause solid-liquid separation even when exposed to high temperatures, making it easy to store and distribute creams. Next, examples of the present invention will be given. Example 1 4600 kg of hydrogenated rapeseed oil (iodine value 93.2), 250 kg of soft hydrogenated palm oil (rising melting point 30.1°C), 150 kg of high erucine rapeseed hydrogenated oil (rising melting point 60.8°C, content of fatty acid groups of C ₂₀ or higher 49.8%). After melting and mixing at 50℃ in a mixing tank, cool it to 20℃ in a shortening votator (quenching kneading device), charge it to another tank, and stir it in the tank for 5 minutes once a day. I saved it as I went along. After 10 days, 50Kg of this oil and fat composition
Mix 50 kg of powdered sugar to make cream. Example 2 4000 kg of hydrogenated rapeseed oil (iodine value 96.0), 750 kg of soft hydrogenated palm oil (rising melting point 29.0°C), 250 kg of high erucine rapeseed hydrogenated oil (rising melting point 60.8°C, content of fatty acid groups of C ₂₀ or higher 49.8%) The mixture was rapidly cooled, kneaded, stored, and creamed in the same manner as in Example 1. The conditions during storage in the tank and the conditions when the cream was squeezed onto a sheet of paper and left at each temperature for one day and night in Examples 1 and 2 are as follows.

【table】

[Table] (To judge the softness, scoop the cream into a pie plate and apply it with almost no resistance. ◎. If you feel some resistance but there is no problem when applying it, ○. If the surface of the pie gets loose. △, those where the pie breaks are marked as ×.Also, as a judgment of shape retention, those with a shape that remains squeezed are marked as ◎, and those with a slightly rounded end are rounded, but the overall shape is almost the same. 〇, those that are slightly sagging and wide are marked as △, and those that are completely flat are marked as ×. Solid-liquid separation is judged by the presence or absence of oil stains on the paper. , those with no oil stains but with some shiny spots were rated as ±.) Next, comparative examples of the present invention will be described. Comparative Example 1 3750 kg of liquid rapeseed oil (iodine value 120), 1000 kg of the same soft palm oil as in Example 2, and 250 kg of high-grade rapeseed hardened oil as in Example 1 were quenched, kneaded, and stored in the same manner as in Example 1. Creamed. Comparative Example 2 4000Kg of hydrogenated rapeseed oil same as Example 2, Example 2
750 kg of the same soft hydrogenated palm oil and 250 kg of hardened beef tallow oil (rising melting point 59.3°C) were rapidly cooled and kneaded, stored, and creamed in the same manner as in Example 1. Comparative Example 3 1750 kg of palm oil (rising melting point 33.5°C), 500 kg of soft hardened palm oil (rising melting point 36.1°C), and 2750 kg of liquid soybean oil (iodine value 134.5) were quenched, kneaded, preserved, and creamed in the same manner as in Example 1. It became. In Comparative Examples 1 to 3, the conditions when stored in a tank and the conditions when the cream was squeezed onto a sheet of paper and left at each temperature for one day and night are as follows.

【table】

【table】

[Table] Comparative Example 3 is a normal soft shot toning that has good spreading properties even at low temperatures. It requires constant stirring in order to dissolve. Comparative examples 1 and 2
Although it is quite close to the present invention and has a considerable improvement effect over Comparative Example 3, the high temperature resistance is still not sufficient. In contrast, as can be seen from Examples 1 and 2, the composition of the present invention can be easily fluidized,
It is clear that it has excellent heat resistance and can be used in a wide temperature range. Example 3 Hydrogenated rapeseed oil (iodine value 88.0) 3450Kg, soybean hydrogenated oil and fat with iodine value 100 750Kg, palm soft hydrogenated oil (rising melting point 26.5℃) 500Kg, Hierusin rapeseed hydrogenated oil (rising melting point 57.8℃, C ₂₀ Fatty acid group content of
49.8%) 300Kg was stored in the same manner as in Example 1,
Creamed. Comparative Example 4 Hydrogenated rapeseed oil 450 same as that used in Example 1
Kg and 500 Kg of the same Hierusin rapeseed hardened oil used in Example 1 were stored and creamed in the same manner as in Example 1. Comparative Example 5 Same hydrogenated rapeseed oil as used in Example 2 250
Kg, same hydrogenated soybean oil used in Example 3 850
Kg and 1500 Kg of the same soft hardened palm oil used in Example 2 were stored and creamed in the same manner as in Example 1. Comparative Example 6 Hydrogenated rapeseed oil 2000 same as that used in Example 1
Kg, same hydrogenated soybean oil as used in Example 3 2000
850 kg of soft palm hardened oil, the same as that used in Example 2, and 150 kg of high erucine rapeseed hardened oil, the same as that used in Example 1, were stored and creamed in the same manner as in Example 1. Comparative Example 7 Hydrogenated rapeseed oil 4900 same as that used in Example 1
Kg and 100 Kg of Hierusin rapeseed hydrogenated oil, which is the same as that used in Example 1, was stored in the same manner as in Example 1.
Creamed. In the above Example 3 and Comparative Examples 4 to 7, the state of each oil and fat composition when stored in the tank and the state when each cream (oil and fat composition) was squeezed onto a filter paper and left at each temperature for a day and night are as follows. That's right.

【table】

[Table] From the above table showing (state during storage) and (state after leaving the cream on), the following can be seen. Comparative Example 4 lacks softness and requires constant stirring to fluidize. Comparative Example 5 lacks softness especially at low temperatures and cannot be made into a fluid state even by stirring. Comparative Examples 6 and 7 have poor heat resistance and cause solid-liquid separation.

Claims (1)

[Claims] 1 60-96% hydrogenated rapeseed oil with an iodine value of 85-100,
2 to 25% soft hydrogenated palm oil with an elevated melting point of 23°C to 32°C as the medium melting point part, and high erucin rapeseed oil containing 30% or more of fatty acid groups with a carbon number of 20 or more and an elevated melting point of 55°C or more as the high melting point part. An oil and fat composition containing 2 to 8% hydrogenated oil, which has excellent thixotropy, is soft over a wide temperature range, and has excellent heat resistance.