JPH07227253A - Preparation of fine tangle powder - Google Patents

Abstract

PURPOSE:To provide a process for the preparation of fine tangle powder controlled to a low salt content. CONSTITUTION:This process for the preparation of fine tangle powder comprises the immersion of dried raw tangle in an alkaline ion water for about 24hr, the immersion in pure water for about 24-hr to effect the desalting, the cutting of the tangle into small pieces after draining, the storage of the small tangle pieces in cold water for a prescribed period under stirring, the separation of the tangle pieces from the cold water to leave a treating stock liquid containing tangle extract, the thermal sterilization of the stock liquid at about 100 deg.C, the quenching of the liquid from hot state after removing foreign materials by filtration, the low-temperature evaporation of the obtained tangle water under reduced pressure, the preparation of tangle extract granules by the spray- drying of the concentrate and the crushing of the granules with a crusher to fine powder of 500-1,000 mesh.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method for producing fine kelp powder controlled to have a low salt content.

[0002]

2. Description of the Related Art Seaweed such as kelp is collected from the sea and dried in the sun as a food material. Further, beverages, seasonings and the like are produced from these dried raw materials and used as processed products. Extract components contained in seaweed such as kelp and process them into seaweed drinks, seasoning liquids, etc.
Various techniques have been conventionally known as techniques for adding to foods. For example, "Seaweed beverage product and method for producing the same" described in JP-A-3-172147, JP-A-57-
No. 68765, "Seaweed juice and its production method", JP-A-57-33579, "Production method of seaweed extract", JP-A-54-49369, "Production method of seasoning or beverage", "Granular food of seaweed extract" described in JP-A No. 52-128256 is a typical known technique.

Among these processed products, the one in which dried raw material kelp is processed into powder has high utilization of the raw material, is not wasteful, and can be stored for a long time. It can be used as a supplement or a seasoning, and the granules obtained by extracting the raw material kelp extract have a high content of active ingredients and can be used as a nutritional food or medicinal product.

[0004]

However, since the processed product produced from the dried raw material kelp contains the salt brought in from the raw material and the amount thereof is not constant, it is necessary to add it to foods each time. There is a problem that it is necessary to season the salt while tasting it, and especially as a health food, the salt content tends to be limited, so these processed foods need to be controlled to have a low salt content. There is.

Further, the particle size of the powder is one of the taste elements as the texture of the tongue, and it is desirable to make it into a fine powder for addition to beverages and the like. Since it is contained in a large amount, it is difficult to atomize it.

The present invention has been made under the above circumstances, and an object of the present invention is to provide a method for producing a kelp powder having a fine particle size which is controlled to a low salt content by using dried raw kelp. Especially.

[0007]

The present invention relates to a method for producing a fine salted kelp powder having a low salt content. The above object of the present invention is to immerse a dried raw kelp in alkaline ionized water for about 24 hours, and further After soaking in water for about 24 hours to remove the salt contained in the raw kelp, the raw kelp is pulled up, dehydrated and cut into strips, and the kelp strips are put into cold water and stirred for a certain period of time. It is stored at a low temperature and the processed kelp extract is produced by separating the kelp strips from the cold water to produce a treated stock solution. The treated stock solution is sterilized by heating at about 100 ° C. to filter foreign substances, and then heated. The kelp water is rapidly cooled to produce kelp water, and the kelp water is concentrated by low-temperature evaporation under reduced pressure. The concentrate is spray-dried to form kelp extract granules, and the granules are pulverized by a pulverizer to 500 to 100
This is achieved by using 0 mesh fine powder.

[0008]

[Function] Since the dried raw material kelp is desalted by immersing it in water under a certain condition before processing, the processed kelp powder does not contain an excessive amount of salt. Further, by using weakly alkaline alkaline ionized water, elution of the active ingredient and discoloration of kelp can be suppressed. Furthermore,
Since the temperature is not raised during the period of desalting and extraction of the extract, deterioration or decomposition of components due to propagation of bacteria and fermentation does not occur.

[0009]

Embodiments of the present invention will be described in detail with reference to the drawings. FIG. 1 is a process chart showing an example of production of fine kelp powder according to the present invention. First, dry the raw material kelp 1 to PH7.
It is placed in a dipping tank containing alkali ion water adjusted to -10, soaked for about 2 hours, then replaced with water, and then newly soaked in pure water for about 24 hours to remove salt contained in the raw kelp. At this time, the components eluted from the raw material kelp 1 change depending on the pH of the immersion water, but can be suppressed to a low level by changing the neutral to weakly alkaline, and the kelp discoloration is small.

Next, the desalted kelp is pulled up, dehydrated and cut into pieces of 1 cm square or more. The kelp pieces are stored in a cold water tank filled with cold water, kept at a temperature of 1 to 3 ° C., and the extract is extracted for about 1 week while stirring. Small pieces of kelp are separated from the liquid from which the extract has been extracted, and this is used as treated stock solution 2. The undiluted solution 2 is sent to a high-pressure kettle through a pipeline, heated to 100 ° C., and sterilized. In this case, if the raw stock solution 2 is passed through the heat exchange tube provided in the high-pressure pot, it is hygienic without touching the air or the operator. The heat-sterilized treated stock solution 2 is further filtered through a pipeline, filtered while hot to remove foreign substances, and rapidly cooled to about 1 ° C. in a cooling tank through a pipeline for about 1 hour, and then stored in a refrigerator as kelp water 3. Be stored. With such rapid cooling, bacterial growth conditions do not occur during the cooling process.

The kelp water 3 is concentrated by evaporating it at a low temperature under reduced pressure, and the concentrated liquid is spray-evaporated by an atomizer to obtain kelp extract granules 4, and the granules 4 are pulverized by a pulverizer to obtain fine kelp kelp. Get powder 5. This granule 4 does not contain fibrous material, and since it has a large amount of water-soluble low-molecular weight components, its viscoelasticity is small,
It can be a fine powder of 000 mesh.

[0012]

As described above, according to the method for producing fine kelp powder according to the present invention, the raw kelp is desalted and used under certain conditions, so that the processed product is always controlled to have a low salt content. There is. In addition, since the storage during the manufacturing process is kept at a low temperature, various bacteria do not propagate and the quality does not deteriorate. Furthermore,
Since this powder is made from an extract extracted with water, the purity of the active ingredient is high, and it can be used not only as a seasoning but also as a medicinal product in combination with atomization.

[Brief description of drawings]

FIG. 1 is a process drawing showing an example of production of a fine kelp powder of the present invention.

[Explanation of symbols]

 1 Raw material kelp 2 Undiluted solution 3 Kelp water 4 Extract granules 5 Fine particles

Claims (4)

[Claims] 1. The dried raw material kelp is immersed in alkaline ionized water for about 24 hours, further immersed in pure water for about 24 hours to remove the salt contained in the raw material kelp, and then the raw material kelp is pulled up and dehydrated. Cut into strips, put the kelp strips in cold water and store at low temperature for a certain period while stirring, and separate the kelp strips from the cold water to produce a processed stock solution in which the kelp extract is extracted. The treated stock solution is sterilized by heating at about 100 ° C. to filter foreign substances, then rapidly cooled from the heated state to produce kelp water, and the kelp water is concentrated by low-temperature evaporation under reduced pressure. Is dried by spray-drying to obtain kelp extract granules, which are crushed by a crusher to 50
A method for producing a fine kelp powder, characterized in that it is a fine powder of 0 to 1000 mesh. 2. The alkaline ionized water has a pH of 7 or more.
It is adjusted to a weak alkaline of 0 or less.
The method for producing the fine kelp powder described in. 3. The method for producing a fine kelp powder according to claim 1, wherein the low temperature storage for a certain period is immersion storage in cold water at 10 ° C. or lower for 4 days or more for about 1 week. 4. The rapid cooling from the heated state is about 60.
The method for producing fine kelp powder according to claim 1, wherein the kelp powder is cooled to about 1 ° C per minute.