JPS601855B2 - Separation type dressing manufacturing method - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a method for producing a separation type dressing in which an oil layer and an aqueous layer are separated during standing.

More specifically, the present invention relates to a method for producing a separate dressing packed in a polyester container. Traditionally, ordinary households have used it as a seasoning when eating salads such as Ikuno Aoi.
Separate type dressings are often used, in which an oil layer consisting mainly of salad oil and an aqueous layer consisting mainly of vinegar and spices added as needed are separated at the same time. This separate type dressing is usually packed in a transparent glass container and shaken lightly before serving to mix the oil and water layers to temporarily emulsify and then serve over raw vegetables. . By the way, glass containers are easy to break and are heavy and difficult to use, so in order to reduce this problem, it is possible to use plastic containers such as vinyl chloride or polyester (polyethylene terephthalate). Among them, polyester containers are highly transparent, so you can see through the container that the water layer and oil layer, which are filled sequentially and are neatly separated into two upper and lower layers, give a clean appearance and are preferred. It is something.

However, separate dressings packed in polyester containers differ from separate dressings packed in glass containers or vinyl chloride containers. Many oil droplets with a diameter of 2 to 5 ribs adhere to the inner wall of the container, and these oil droplets reflect light and glare, and this condition persists even if the container is left standing for a long time after shaking, resulting in a poor appearance. There is a problem with becoming.

The present inventor has developed a method to prevent oil droplets from adhering to the inner wall of the container and cause glare when a polyester container-packed separation type dressing is shaken, and furthermore, to prevent oil droplets from adhering to the inner wall of the container and causing glare, and furthermore, to prevent the boundary between the oil layer and the water layer from forming immediately after shaking. As a result of various studies with the aim of preventing the formation of a cloudy layer on the skin, it was discovered that adding gum tragacanth among the many types of gums is effective in preventing this.As a result of further studies, the present invention was completed. It was. That is, the method for manufacturing a separation type dressing of the present invention is a method for manufacturing a separation type dressing packed in a polyester container, in which the water layer is mixed with a water layer of 0.02 to 0.
It is characterized by adding a weight % of gum tragacanth.

Hereinafter, the present invention will be explained in detail based on embodiments.

The shape and size of the polyester container used in the present invention are not particularly limited, but since the container is to be filled with a separation type dressing and shaken, it is preferable to use a container that is easy to grip and has diamonds.

When producing the separation type dressing of the present invention, 0.02 to 0.2% by weight of gum tragacanth is added to the water layer of the oil layer and water layer, which are made of vinegar, vegetable oil, spices, etc. Added.

The reason why gum tragacanth is used in the present invention is that gum tragacanth is particularly effective in preventing glare compared to other gums. The amount of gum tragacanth added to the water layer was 0.0.
The reason why it is set to be more than a weight % is because if it is less than 0.0 Z weight %, the size of oil droplets adhering to the inner wall of the container will not become so small and the number of oil droplets will not decrease, so glare can be effectively prevented. This is because it cannot be prevented.

Also, the reason why it is set at 0.2% by weight or less is that if it exceeds 0.2% by weight, the size of oil droplets that adhere to the inner wall of the container will become smaller.
In addition, although the number of oil droplets can be reduced and glistening can be prevented, a white cloudy layer is formed at the boundary between the oil layer and the water layer due to emulsification, and this cloudy layer does not disappear even if left to stand still after shaking, and tragacanth gum When the amount of addition is increased, the cloudy layer becomes thicker,
This is because it ends up being an emulsified type dressing. The amount of added tragacantoga to the water layer is 0.0.
When the amount is 2 to 0.2% by weight, preferably 0.05 to 0.15% by weight, the size of oil droplets that adhere to the inner wall of the container even when shaken is usually less than one foot in diameter, and the number of oil droplets is also reduced. The amount of tragacanth gum is about 10% compared to the product without the addition of gum tragacanth, which prevents glare in appearance, and hardly any cloudy white layer is formed at the boundary between the oil layer and the water layer. Note that the method for adding gum tragacanth is arbitrary, but it is common to add and dissolve it in advance in an aqueous layer raw material such as vinegar.

As described above, according to the present invention, 0.02 to 0.0. a
% by weight of tragacanth gum is added, so even if the separation type dressing is packed in a polyester container and shaken, the adhesion of large oil droplets to the inner wall of the container in the aqueous layer is significantly reduced, which improves the appearance. No glare.

Moreover, a cloudy layer is not substantially formed at the boundary between the oil layer and the water layer. In addition, in the present invention, when a certain amount or more of gum tragacanth is added to the separation type dressing, the size of oil droplets adhering to the inner wall of the container in the aqueous layer becomes significantly smaller, and the number of adhering oil droplets also decreases. Although it is unclear, this is probably because the added tragacanth gum significantly lowers the affinity between the polyester adhering to the inner wall of the container and the fats and oils adhering to it.

Test examples of the present invention are shown below.

Test examples Vinegar 750 yen, Sugar 150 yen, Salt 150 yen, Shimizu 13
An aqueous layer consisting of 0.00 ml and seasoning 50 ml was prepared.

Separate this water layer into 150 liters, add the gum shown in the table below to each water layer, pack it into a cylindrical polyester container with a diameter of 6 mm and a height of 16 mm, then fill with salad oil for 150 liters and separate. Got type dressing. After shaking this separation type dressing to temporarily emulsify the oil layer and water layer and allowing it to stand still for 3 minutes, ■ the size of the oil bottles (average diameter side), the results of measuring the number of oil bottles, and ■ the glare. The status is shown in the table. Incidentally, the measurement was carried out in the middle part 3 of the aqueous layer part.

Table (Note) Brass has oil droplets attached to the inner wall of the container in the water layer and is glistening.

Minus is not glaring. As shown in the table, it can be seen that the glare disappears when 0.02% by weight or more of gum tragacanth is added to the water layer.

In addition, tragacanth gum and carrageenan were added to the water layer at 0% concentration.
．． When 3% by weight was added, a cloudy white layer was formed at the boundary between the oil layer and the water layer.

In addition, when no gum was added, the size of the oil droplets was 5 ribs, the number of oil droplets was approximately 40, and the number of oil droplets was 10.

Examples of the present invention will be shown below. Example 1 To a water layer consisting of 50 parts of vinegar, 10 parts of sugar, 10 parts of salt, 100 parts of fresh water, and 5 parts of seasoning, 0.35 parts of gum tragacanth (0.2% by weight based on the water layer) was added.

This aqueous layer was packed into a polyester container, and then 180 g of salad oil to which a small amount of oil mustard and oil garlic had been added was packed to obtain a separate type dressing. Example 2 Add 0.2 parts of gum tragacanth (
0.2% by weight relative to the aqueous layer) was added.

This aqueous layer was packed into a polyester container, and then 200 g of salad oil to which a small amount of oil mustard and oil garlic had been added was packed to obtain a separate type dressing. This polyester container-packed separation type dressing is
Even when shaken, the large oil bottle did not stick to the inner wall of the container in the water layer, and there was no glare.

Claims (1)

[Claims] 1. A method for producing a separate type dressing made of polyester packed in a container, characterized in that 0.02 to 0.2% by weight of gum tragacanth is added to the aqueous layer.