JPS6360973B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Industrial Field of Application] The present invention relates to a method for producing dried sweet potato cubed into sticks.

[Conventional technology]

General dried sweet potato a is produced by steaming whole sweet potatoes, slicing them into plates, and then arranging them on a bamboo basket and drying them in the sun. Its shape is a plate-like one as shown on the right side of FIG. When slicing steamed sweet potatoes, a slicer as shown in FIG. 2 is used, for example. That is,
This slicer has piano wire 2 between frame 1,
2. are strung parallel to each other at intervals of several millimeters, and by passing the steamed sweet potato through this, the sweet potato is sliced into approximately uniform thickness.

When producing dried sweet potato a, the weather is chosen to be as cold and dry as possible so as not to change the quality of the steamed sweet potato. For example, in the northern Kanto region, the production season is from mid-November to February. The daytime temperature at this time is 5 to 12 degrees Celsius, and steamed sweet potatoes sliced into 5 to 7 mm thickness will dry to their optimum state in 5 to 8 days.

Dried sweet potato a has a unique sweet taste and chewy texture, and has a relatively good shelf life, since only the moisture is removed by drying and the sweet taste remains. For this reason, it remains popular as a luxury item. However, in order to obtain such a sweet taste and texture, it is necessary to use a variety of sweet potato that is relatively low in fiber and contains a large amount of water as a raw material.

Plate-shaped dried sweet potato a as shown on the left side of Figure 1
Since it is difficult to eat it as it is, it is customary to cut it into pieces before eating it. Therefore, in order to accommodate this dietary pattern and to eliminate the formative image of sweet potato and create a product with a smart shape, an attempt was made to produce dried sweet potato a that was diced into sticks as shown on the left in Figure 1. ing. As a means of achieving this, for example, in the Shizuoka Prefecture region, a hard variety of sweet potato with relatively high fiber content and low water content is used, and the sweet potato is steamed and cut into sticks using a cutter as shown in Figure 4. After that,
Until now, methods of drying it under the sun have been used. In addition to the piano wires 2, 2 of the slicer as shown in FIG.
It is made of cloth.

[Problems to be solved by the invention] However, when using a variety of sweet potato that is relatively low in fiber and contains a large amount of water, such as a variety of sweet potato called "Tamatoyo" produced in Ibaraki Prefecture, When steamed sweet potatoes are cut with a cutter as shown in FIG. 4, they fall apart and are difficult to arrange on a bamboo basket or the like. Therefore, it is virtually impossible to manufacture, and
Even if they were manufactured, they would only be in extremely poor shape.

For this reason, conventional diced dried sweet potatoes are made from sweet potatoes that have a relatively low moisture content and are somewhat hard when steamed, such as those produced in the Shizuoka Prefecture region mentioned above. ing. However, when sweet potatoes of these varieties are used as raw materials, although the yield is good, the sweetness and texture of dried sweet potatoes are poor, and the value as a luxury item is inevitably low.

This invention was made in order to solve the above-mentioned problems in the conventional method for producing diced dried sweet potato.Even when sweet potato containing a large amount of moisture is used, the work is easy and the cubes can be formed into good shapes. The present invention provides a method for producing cut and dried sweet potatoes.

[Means to solve the problem]

That is, the method for producing diced dried sweet potato according to the present invention involves slicing steamed sweet potato into plate shapes, drying them until at least half-dry, cutting them at regular intervals, and further drying them if necessary. This is the way to do it.

[Effect]

In this invention, since the steamed sweet potato sliced into plate shapes is dried once, it becomes hard and does not easily fall apart even when cut into pieces, and can be easily and neatly cut.

〔Example〕

Next, examples and preferred embodiments of the present invention will be described with reference to the drawings.

First, the raw material, sweet potatoes, is steamed, then peeled and sliced into pieces about a few millimeters thick.
As mentioned earlier, the raw material sweet potato used is one with low fiber content and high water content, such as varieties such as "Tamaho". When sweet potatoes of these varieties are steamed, the skin can be easily peeled with a crowbar. When slicing, slice as long as possible. For example, when using a slicer as shown in FIG. 1, the sweet potato is sliced through the piano wires 2, 2, .

Next, the sliced steamed sweet potato is dried.
Although sweet potatoes can be force-dried using hot air, etc., it is preferable to dry them in the sun by arranging them on a bamboo rack so that they do not overlap, in terms of taste and texture.

The plate-shaped dried sweet potato a is cut into sticks at regular intervals. The dry state of the sweet potato at the time of cutting only needs to be such that it is easy to cut and the sweet potato does not fall apart during cutting, and it is not necessarily necessary to dry the sweet potato to a state suitable for drying the sweet potato. That is, it may be partially dried. However, in this case, a further drying step is required after cutting, so it is actually more efficient to dry and cut the sweet potato to the most suitable state as dried sweet potato a.

The dried sweet potatoes a, a... can be cut by appropriate means as necessary. For example, what is shown in FIG. 3 is a means for cutting plate-shaped dried sweet potatoes a, a, . . . at high speed while intermittently conveying them on a belt conveyor 5. That is, plate-shaped dried sweet potatoes a, a...
This is a method in which the material is placed on a belt conveyor 5 and conveyed intermittently in the direction of the arrow, while being cut by a cutting blade 6 that is driven up and down. In this case, the dried sweet potatoes a, a... are arranged so that the direction perpendicular to the feeding direction of the belt conveyor 5 is vertically elongated.
It is best to cut the dried sweet potatoes a, a... lengthwise.

〔Effect of the invention〕

As explained above, according to the present invention, the sweet potato can be easily cut without breaking it, so even sweet potato varieties with a high moisture content can be easily produced into cubes of stick-shaped dried sweet potato that are easy to eat and have a smart appearance. .

[Brief explanation of drawings]

Fig. 1 is a perspective view showing cubed dried sweet potato produced by the production method according to the present invention and general plate-shaped dried sweet potato, and Fig. 2 is a perspective view showing an example of a slicer for slicing steamed sweet potato. , FIG. 3 is a schematic perspective view showing the cutting process of the method for producing diced dried sweet potato according to the present invention, and FIG. 4 is a perspective view of a cutter used in the conventional method for producing cubed dried sweet potato. be. a...Dried sweet potato.

Claims (1)

[Claims] 1. In a method for producing dried sweet potato a cut into sticks, the steamed sweet potato is sliced into plate shapes, dried until at least half-dried, and then cut into cubes at regular intervals. A method of producing sweet potatoes.