JPH10108700A - Powdered black sugar and its production - Google Patents

Abstract

PROBLEM TO BE SOLVED: To enable the mass production of powdered black sugar and obtain the uniform powdered black sugar having a fine particle diameter. SOLUTION: A milk of lime is added to a sugar juice after squeezing sugarcanes and the sugar juice is boiled down. The resultant concentrated sugar juice is placed in a screw conveyor and air is blasted thereon while normally and reversibly rotating the screw and stirring the sugar juice to thereby powder the black sugar.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION There are two types of brown sugar, hard lump and powder, and the present invention relates to the latter powder sugar, that is, powdered sugar and a method for producing the same.

[0002]

2. Description of the Related Art In recent years, brown sugar powder has been reviewed in place of white bee sugar under the influence of the health food boom, and has become popular. As a result, the demand for powdered brown sugar has increased and production has not been able to keep up.

[0003] In order to produce powdered brown sugar, usually, a lump-shaped brown sugar is once produced, and the lump of the brown sugar is crushed or shaved to be mechanically pulverized. That is,
Edible lime milk is added to the sugar juice obtained by squeezing sugarcane, concentrated by boiling down, and cooled, thereby producing a lump-shaped brown sugar. And, since the lump of brown sugar is mechanically crushed or shaved into a powdery form, the efficiency is low, the operation is time-consuming, and mass production is not possible.

[0004] In addition, when the lump-shaped and high-density brown sugar is crushed or shaved, the particle size of the powdered brown sugar is not constant, and as a result, the powdered sugar does not dissolve quickly and uniformly at the time of use, and the quality of consumption is low. Can not meet the needs of the elderly.

[0005] The technical problem of the present invention is to focus on such problems and to establish a method for efficiently producing powdered brown sugar, which enables mass production, and which has a fine and uniform particle size. It is to realize.

[0006]

The technical problem of the present invention is solved by the following means. A first aspect of the present invention is a method for producing powdered brown sugar, which comprises adding lime milk to sugar juice squeezed from sugarcane and repeating stirring while blowing the concentrated sugar juice to boil down to powder.

[0007] As described above, if the concentrated sugar juice is blown and cooled and the moisture is evaporated with continuous stirring without giving time for the concentrated sugar juice to become solid, it becomes powdery. Therefore, powdered black sugar can be produced continuously from the conventional production process of brown sugar, which is compared with a method of once producing a lump of brown sugar and then pulverizing or shaving it into a powder as in the conventional method. In addition, the production efficiency is greatly improved, and it is suitable for mass production.

[0008] Further, since the concentrated sugar juice is pulverized without giving time to solidify by continuously stirring and cooling, the particle size is smaller and smaller than the method of pulverizing or shaving the lump of brown sugar. Are evenly distributed.

A second aspect of the present invention is a method for producing powdered brown sugar, wherein the stirring according to the first aspect is performed by putting concentrated sugar juice into a screw conveyor and repeating the forward and reverse rotations of the screw.

As described above, when the concentrated juice is stirred by repeating the forward and reverse rotations of the screw in the screw conveyor, the stirred concentrated juice repeatedly rotates, slides, and reciprocates in the container due to the rotation of the screw. Thus, it is cooled efficiently and moisture evaporates. As a result, high-quality powdered sugar can be produced in a short time.

A third aspect of the present invention is powdered black sugar which is powdered by repeating stirring while blowing a concentrated sugar juice obtained by adding lime milk to sugar juice obtained by squeezing sugarcane and boiled down.

[0012] Thus, the powdered brown sugar produced by stirring and blowing the concentrated sugar juice has a smaller particle size and a smaller particle size than the powdered sugar obtained by grinding or shaving the mass of brown sugar. Make it even. Therefore, when it is put into coffee or used for cooking, it dissolves immediately, so that the quality is excellent.

In addition, since the concentrated sugar juice is converted into powdered brown sugar at a high temperature, the inside of the fine powder becomes porous and becomes more easily dissolved.

[0014]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Next, an embodiment of a method for producing powdered brown sugar according to the present invention and how the powdered sugar is actually embodied will be described. FIG. 1 is a flowchart illustrating a method for producing powdered brown sugar according to the present invention.

First, as shown in (1), squeezing sugarcane,
Add edible lime milk to the juice as in (2) and boil. The method of boiling is to boil it in a single kettle until it is concentrated and thick, or to use multiple kettles such as the first kettle, the second kettle, and the third kettle, and transfer them sequentially, There are a variety of ways to boil, such as the most concentrated method in a pot.

The above is the same as the ordinary method for producing brown sugar. However, in order to produce powdered brown sugar by the method of the present invention,
According to the method of the present invention, as in (3), air is blown with a blower while stirring in a container. This blast stirring process is continuously performed until the concentrated sugar juice becomes powdered brown sugar.

The time required for the blast stirring depends on the amount of the raw materials and the stirring capacity of the stirrer. In the embodiment, for the concentrated sugar juice of about 100 g, the particle size is reduced by the blast for about 15 minutes. Uniform powdered sugar was obtained.

FIG. 2 shows an embodiment of an apparatus for producing powdered brown sugar according to the present invention, wherein (1) is a plan view and (2) is (1).
FIG. 3A is a cross-sectional view of FIG. Reference numeral 1 denotes an iron container having a cross section U as shown in FIG.
It is shaped like a letter. In this U-shaped container 1, a screw 2
The screw conveyor is configured by incorporating the.

Both ends 4a, 4b of the shaft 4 of the screw 2 are inserted and supported by bearings 3a, 3b fixed to the side walls 1a, 1b at both ends of the U-shaped container 1. And the shaft end 4
b between the chain sprocket 5 fixed to the output shaft 6 of the motor M and the chain sprocket 7 fixed to the output shaft 6 of the motor M.
They are connected by a chain 8.

An outlet 9 is opened below one end wall 1a of the U-shaped container 1, and a guide 10 is integrally connected to the outside thereof. The outlet 9 is opened and closed by an opening / closing lid 11 that rotates around a horizontal axis.

The screw 2 may have the same structure as a normal screw conveyor. In the illustrated embodiment, the screw 2 is used to increase the contact area between the concentrated concentrated juice and the air and to improve the ventilation. And the shaft 4 are connected by spokes 12 in a radial direction, and a space 13 is formed between the screw 2 and the shaft 4.

(2) As shown in the figure, a blower fan f, which is driven to rotate by a motor m, is disposed diagonally above the U-shaped container 1 so that air is blown into the U-shaped container 1. Has become.

In this apparatus, concentrated sugar juice is put into the U-shaped container 1 and blown into the U-shaped container 1 by the fan f. Also, the concentrated sugar juice in the U-shaped container 1 is stirred by rotating the screw 2 by the motor M.

That is, when viewed from the chain sprocket 5 side, when the screw 2 rotates counterclockwise, the U-shaped container 1
The concentrated sugar juice S inside is moved to the left side of the figure. When the screw 2 rotates clockwise, the concentrated sugar juice S is moved to the right side in the figure.

Therefore, when the screw M is rotated clockwise and counterclockwise alternately by rotating the motor M forward and backward, the concentrated sugar juice S in the U-shaped container 1 is moved to the left side of the figure, The operation of moving to the right can be alternately performed at a predetermined cycle. With such reciprocating movement, the concentrated sugar juice also adheres to the screw 2 and the shaft 4 and the U-shaped container 1
The concentrated sugar juice is repeatedly stirred without giving time to solidify the sugar juice by sliding against the inner wall of the sugar juice or rubbing between the concentrated sugar juices.

Furthermore, the concentrated sugar juice S is cooled by the air blow by the air blower fan f, and the moisture evaporates. Therefore, it is muddy at first, but becomes clay-like as agitation proceeds, then becomes brittle, and finally becomes powdery.

As described above, the concentrated sugar juice hardens, but is continuously stirred, and the blast cooling and the evaporation of water are promoted to obtain fine and uniform powdered black sugar of uniform quality. Can be In order to enhance the stirring and cooling effects, the concentrated sugar juice as a raw material should not be added in a large amount, and it is preferable that the screw shaft 4 is sufficiently exposed.

In the illustrated apparatus, the desired powdered sugar can be obtained by stirring and blowing for about 15 minutes. Finally, the screw 2 is rotated counterclockwise to discharge the powdered sugar in the U-shaped container 1 into the outlet 9. Side, the opening / closing lid 11 is opened, and moved from the guide 10 to an iron plate tray or the like and cooled, whereby the powdered brown sugar is completed.

As shown in FIG. 2, when the space 13 is formed between the outer periphery of the screw 2 and the center shaft 4, the air from the blower fan f can flow well and the screw 2 can be in contact with the air. Since the area is large, the contact area of the concentrated juice with the screw 2 is increased, and cooling of the concentrated juice and evaporation of water are promoted.

To increase the cooling effect, the blower fan f
May be a cool air blower that blows cool air generated by a cooler or the like. The screw 2 may be formed of a metal tube, into which cold air or cold water may be put or circulated. Further, it is possible to form the shaft 4 by a hollow tube, through which cool air or cooling water is passed.

FIG. 3 shows another embodiment of the screw, in which a screw 15 is formed on the outer periphery of the drum 14. Therefore, the concentrated sugar juice also adheres to the outer peripheral surface of the drum 14 and slides with the inner wall of the U-shaped container 1 or rubs between the concentrated sugar juices, so that the concentrated sugar juice can be agitated without time to solidify. . The rotation speed of the screws 2 and 15 may be low, such as several tens to 100 rotations per minute.

When air is sent to the inside of the drum 14 from one opening as shown by an arrow and discharged from the other opening, the drum 14 is constantly cooled by air, so that the cooling of the concentrated sugar juice is further promoted. Into the drum 14, it is possible to send cool air generated by a cooling machine, and also to send cooling water. Also in these cases, it is preferable to use the blowing fan f in combination.

As described above, powdered black sugar can be produced by rotating the screws 2 and 15 forward and backward for, for example, about 15 minutes. However, in order to produce larger quantities, as shown in FIG. By arranging the letter-shaped containers 1 in parallel and providing the screws 2 and 15 in each, the production capacity can be enhanced.

The cooling of the concentrated juice in the U-shaped container 1 is accelerated,
In order to increase the production efficiency, it is also possible to blow air from the outside to the U-shaped bottom portion or the side wall of the U-shaped container 1 or cool it with water cooling.

Although the screw conveyor mechanism has been exemplified as the stirring means for the concentrated sugar juice, various other stirring mechanisms can be used.

[0036]

According to the first aspect of the present invention, if the concentrated sugar juice is blown while being continuously stirred and cooled while allowing the concentrated sugar juice to harden, and the moisture is evaporated, it becomes powdery. Therefore, powdered black sugar can be produced continuously from the conventional production process of brown sugar, and once a mass of brown sugar is produced as in the past,
Compared to the method of pulverizing or shaving to make a powder, the production efficiency is remarkably improved and suitable for mass production. In addition, the particle size is fine and uniform.

When the concentrated juice is stirred by repeating the forward and reverse rotations of the screw in the screw conveyor as described in claim 2, the concentrated sugar juice is rotated and reciprocated in the container by the rotation of the screw. As the movement is repeated, it is cooled efficiently and the moisture evaporates. As a result, high-quality powdered sugar can be produced in a short time.

As described in claim 3, the powdered brown sugar produced by stirring and blowing the concentrated sugar juice has a finer particle size than the powdered sugar obtained by grinding or shaving the lump of brown sugar. And evenly. Therefore, when it is put into coffee or used for cooking, it dissolves immediately, so that the quality is excellent.

Furthermore, since the concentrated sugar juice is converted into powdered brown sugar at a high temperature, the inside of the fine powder becomes porous, and it becomes easier to dissolve.

[Brief description of the drawings]

FIG. 1 is a flowchart illustrating a method for producing powdered brown sugar according to the present invention.

FIG. 2 is an embodiment of an apparatus for producing powdered brown sugar according to the present invention, wherein (1) is a plan view and (2) is an A- of FIG.
FIG. 3A is a cross-sectional view of FIG.

FIG. 3 is a plan view showing another embodiment of the screw.

FIG. 4 is a schematic cross-sectional view of a multiple-type powdered brown sugar manufacturing apparatus.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 U-shaped container made of iron 2 Screw 4 Shaft 9 Outlet 12 Spoke 13 Space S Concentrated sugar juice f Ventilation fan

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[Procedure amendment]

[Submission date] February 21, 1997

[Procedure amendment 1]

[Document name to be amended] Drawing

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[Procedure amendment 2]

[Document name to be amended] Drawing

[Correction target item name] Figure 3

[Correction method] Change

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[Procedure amendment 3]

[Document name to be amended] Drawing

[Correction target item name] Fig. 4

[Correction method] Change

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Claims (3)

[Claims] 1. A method for producing powdered brown sugar, comprising adding lime milk to sugar juice squeezed from sugarcane and repeating stirring while blowing the concentrated sugar juice which has been boiled down to powdery sugar. 2. The method for producing powdered brown sugar according to claim 1, wherein the stirring is performed by putting concentrated sugar juice into a screw conveyor and repeating forward and reverse rotations of the screw. 3. Powdered black sugar which has been powdered by repeating stirring while blowing on concentrated sugar juice, which is obtained by adding lime milk to sugar juice squeezed from sugarcane and boiled down.