JP2001161319A - Method for treating salted wakame seaweed stem - Google Patents

Abstract

PROBLEM TO BE SOLVED: To obtain a useful and high-quality powdery product excellent in processing efficiency by using salted wakame seaweed stems. SOLUTION: The subject method for treating salted wakame seaweed comprises the following processes: a finely splitting process comprising finely splitting salted wakame seaweed stems into fibrous form ones, washing-in-water process comprising washing the resultant fibrous stems in water, drying process comprising drying the thus washed stems, and pulverization process comprising pulverizing the thus dried stems; wherein the salted wakame seaweed stems made into fibrous forms to enlarge the surface area thereof in the finely splitting process is improved in desalting efficiency in the washing-in-water process and can be dried in a short time in the drying process, therefore the stems are efficiently treated as a whole.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

TECHNICAL FIELD The present invention relates to a method for treating the stems of salted seaweed for effective use of the stems of seaweed.

[0002]

2. Description of the Related Art Generally, the collection time of wakame is limited, and thus the collected wakame is stored as salted wakame. The production of this salted wakame is carried out, for example, by blanching and draining the harvested wakame, kneading with a predetermined amount of salt in a salt entanglement machine, taking out from the salt entanglement machine, further sprinkling salt, and allowing it to stand overnight. It is. The salted wakame produced in this manner is commercialized mainly by using soft leaves and buds, while removing stems and also removing original leaves and cut leaves as waste leaves. The residue mainly containing the removed stem is
Some are processed into pickles or used for seaweed salads, but most are dumped in the ocean.

[0003]

However, as described above, when the residue mainly containing the removed stems is dumped in the sea, the dumped stems are putrefied, resulting in foul odors and decaying shores. There was a problem that it could be contaminated. In addition, there is a problem that the discarded stems are wound around the screw of the fishing boat and may hinder the operation of the fishing boat. Recently, some of the discarded stems have been used for prey on abalone and sea urchins. And cause problems such as polluting the coast. In order to solve this problem, the present inventor has studied to effectively treat the stems of salted seaweed. By the way, conventionally, a method of pulverizing raw wakame is known, and this is a heat treatment which is an inactivation treatment of an enzyme for fixing the alginic acid content after washing with water using a bud strain of wakame. And dried to perform powder treatment (for example, described in Japanese Patent Application Laid-Open No. 10-191942).

[0004] However, even if this conventional technique is simply applied to salted seaweed, there is a problem that the powder processing efficiency is inferior and that products of satisfactory quality cannot always be obtained. The reason is that the stem of salted seaweed contains a lot of salt, and therefore, even if it is simply washed with water, it is difficult to remove the salt sufficiently, so that the salt remains in the product too much, leading to deterioration in quality. . In addition, the stem of salted seaweed is dehydrated by salt and thinned to some extent.However, during the drying process, the epidermis first dries, so the evaporation of water from the epidermis slows down, and the stem surface and the inside of the stem This is because drying tends to end easily with different moisture contents, and it is difficult to dry the inside sufficiently, so that the powder processing is hindered and the quality is affected. Also,
If it is attempted to dry sufficiently, the drying time becomes long. Further, when the stem is dried, there is also a problem that when heated and dried at a high temperature, the active ingredients such as vitamins contained in the stem are denatured.

[0005] The present invention has been made in view of such problems, and it is possible to remove salt as much as possible from the stalks of salted seaweed and to sufficiently dry the stalks to improve the processing efficiency and improve the quality. It is an object of the present invention to provide a method for treating the stem of a salted seaweed, which can provide a useful powder product having good quality.

[0006]

The technical means of the present invention for solving such a problem is to provide a method for treating stems of salted wakame, which comprises treating stems removed from salted wakame which has been blanched and then salted. In the step of finely splitting the stem of the seaweed into a fibrous fibrous body, a washing step of washing the fibrous stem, a drying step of drying the washed stem, and powdering the dried stem And a pulverizing step of forming a powder. In the fission step, the fibrous material is formed into a fibrous fibrous body. Such a wakame stalk is thinned and the surface area is increased, so that the salt easily flows into the water in the washing step, and therefore, the washing efficiency is improved. In addition, as the surface area is increased due to the thinning, the water inside becomes easy to come out, so that the drying efficiency in the drying step is improved and the powder can be efficiently made. Further, if necessary, the stem is torn along the fiber direction of the stem to form a fibrous body in the shredding step. Since the stem is disentangled along the direction of the fiber of the stem, the stem can be easily made into a fibrous body. In the case of tearing along the fiber direction, no labor is required, and the destruction of cells constituting the stem portion and the outflow of the active ingredient are minimized. Furthermore, if necessary, the maximum diameter of the fibrous body that tears the stem along the fiber direction is 4 mm to 5 mm. When the maximum diameter of the fibrous body is 4 mm to 5 mm, it is possible to increase the surface area and to suppress the degree of damage to the cells constituting the stem by the fission treatment.

Further, if necessary, a cutting step for cutting the fibrous body is provided after the above-mentioned tearing step. Since the fibrous body can be shortened, the handling of the fibrous body can be facilitated. Further, if necessary, in the cutting step, the length of the fibrous body to be cut may be 50 mm.
８０80 mm or less. When the length of the fibrous body is within this range, handling in the washing step and the drying step can be facilitated. Further, if necessary, in the water washing step, the salt content of the water-washed fibrous body was set to 1.0 g or less based on 100 g of the fiber body having a water content of 90% or more. When the salt is sufficiently washed off, the resulting product can have a reduced salt content. Also,
When the salt content is low, the adsorption effect of water in the powder on the water due to the water absorption effect of the salt can be reduced, and a good powder state can be maintained for a long time.
Furthermore, if necessary, the drying step is performed by blowing hot air on the stem. The warm air spreads evenly over the object to be dried, and the drying efficiency is improved. Further, if necessary, in the drying step, the drying temperature by the warm air is set to 30.
C. to 40 ° C. In this temperature range,
The drying time can be shortened without denaturing the active ingredient contained in the stem portion. Furthermore, if necessary, in the drying step, the water content of the stem is 8 to
It was configured to be 10% by weight. When the water content is in this range, a good powder having no wet feeling can be obtained.

[0008]

BEST MODE FOR CARRYING OUT THE INVENTION Hereinafter, a method of treating stems of salted seaweed according to an embodiment of the present invention will be described. Usually, wakame is collected as a natural product around August and aquaculture around July, and a part is stored as salted wakame. The method for treating the stem of a salted wakame of the present invention comprises the steps of removing the leaves and buds of the stem of a salted wakame (an original leaf (an old leaf) or a cut leaf (a damaged leaf)). ) Is dried and powdered.

FIG. 1 shows the processing steps of a method for processing the stems of salted seaweed. As shown in FIG. 1, the method of treating the stem of the salted wakame is divided into a fission step of finely splitting the stem of the salted wakame into a fibrous fibrous body, a cutting step of cutting the fissioned fibrous body, A washing step of washing the shaped stem with water,
The process comprises a drying step of drying the washed stem and a powdering step of powdering the dried stem. Hereinafter, each step will be described in detail.

(1) Shredding Step In the shredding step, the stem of the salted seaweed is sandwiched between, for example, a sword mountain for ikebana so that a pair of side surfaces of the stem is fixed, and the fiber is cut along the fiber direction of the stem. It is said. By making it into a fibrous body, the inside of the stem is exposed and the entire surface area is significantly increased. The diameter of the obtained fibrous body is 5 m according to the installation interval of the Kenzan needle used as a tool for tearing.
m, more preferably 2 mm to 4 mm. When the diameter of the fibrous body is 2 mm to 4 mm, a sufficient surface area can be obtained, and the cells constituting the stem of the seaweed are hardly damaged, and the processing efficiency in the washing step and the drying step is improved.

(2) Cutting Step The length of the fibrous body obtained in the shredding step is adjusted. This cutting step is a step of cutting and shortening the fibrous body to a desired length, and makes it easier to perform a subsequent washing step and drying step. Therefore, the fibrous body has a length of 80 in the cutting process.
mm or less, preferably 50 mm to 70 mm. If it is less than 50 mm, it takes time and effort to drain the water in the washing step. Here, in contrast to the process of the present invention, when the salt is removed by the water washing process and then the shredding process is performed, the stems softened by the salt removal cannot withstand the pulling of the sword mountain and are divided. As a result, a fiber body (having a large surface area) that is effective for the drying step cannot be obtained.

(3) Washing step The fibrous body obtained in the shredding step and the cutting step is exposed to running water for 30 minutes, and the salt added by the salting treatment is washed off, and desalting is performed. Desalting has a water content of 9
It is preferable to carry out the treatment so that the salt content is 1.0 g or less per 100 g of the fiber body of 0% or more. Salt content,
If the amount exceeds 1.0 g, undesired saltiness is given to the product. If the salt content is 0.6 g or more and 1.0 g or less with respect to 100 g of the fibrous body having a water content of 90% or more, moderate saltiness can be given to the product. In this washing step, the stem of the seaweed was converted into a fibrous fibrous body in the shredding step, and the stem became thinner, the inside of the stem was exposed, and the surface area was enlarged. In the washing step, the salt easily flows into the water, so that the washing efficiency is improved.

(4) Drying process The fibrous body processed in the water washing process is dried by applying hot air uniformly to the fibrous body by a hot air drier. Drying in the sun is also effective as a drying treatment. However, a dried product obtained by the sun drying is preferably subjected to a hot air drying treatment using a drier, because factors such as a smell of sunshine and a decrease in color are accompanied by factors that reduce consumer confidence. The drying temperature of the hot air dryer with hot air is 30
C. to 40.degree. In the drying step, the water content of the stem is adjusted to 8 to 10% by weight. In this drying step, the stem of the seaweed is made into a fibrous fibrous body in the shredding step, and the stem is thinned, the inside of the stem is exposed and the surface area is enlarged. This makes it easier for the water inside to come out, thereby improving the drying efficiency.

The conditions in the drying step were determined by the following experiment. First, the water content of the fibrous body suitable for the powdering treatment was examined. As an experiment target, 30
A fibrous body that had been desalted by being exposed to running water for minutes was used. Drying was performed with a warm air dryer at 30 ° C. (wind speed 2 m / s). Moisture content of fiber before drying (% by weight)
Was 92.1% by weight. When the fibrous body is dried with a warm air drier so that the moisture content (% by weight) becomes a predetermined value, and the feel of the dried fibrous body and the dried fibrous body are powdered using a mill. Was examined for powder state. The results are shown in FIG. As shown in FIG. 2, the water content (% by weight)
It was found that the fibrous body in which the content was 8% by weight to 10% by weight was in a state where moisture was sufficiently removed and became a good powder which did not feel wet. On the other hand, when the water content (% by weight) is set to 12% by weight to 20% by weight, the powder cannot be powdered because it is soft and cannot be wet, and is not suitable for powdering. all right. As described above, in order to improve the powder state, the water content is preferably set to 10% by weight or less of the fibrous body. It can be said that setting the water content to 10% by weight or less is preferable from the viewpoint of food hygiene in terms of suppressing spoilage.

Next, a drying temperature suitable for drying was examined. As a test object, a fibrous body subjected to desalination by exposing to running water for 30 minutes in a water washing step was used. The fibrous body was adjusted to a water content of 10% by weight at a predetermined drying temperature (wind speed: 2 m / s), which was suitable for powdering treatment. FIG. 3 shows the time required for the drying to be completed at that time. As shown in FIG.
It can be seen that the time to the end of drying was shortened by about 2 hours when the temperature was set to 40 ° C. to 40 ° C. as compared to when the temperature was set to 20 ° C. to 25 ° C. For this reason, the drying temperature is preferably set to 30 ° C to 40 ° C. For the range over 40 ° C,
If the temperature exceeds 40 ° C., components such as vitamins are denatured and cannot be used as useful products. When the stems of the salted wakame seaweed, which are not subjected to the shredding and cutting steps, are similarly subjected to hot air drying at 30 ° C., about 720 wt.
It was found that the drying treatment efficiency was very poor. This is considered to be because the evaporation of water from the epidermis becomes slower as the epidermis dries.

(5) Powdering step The fibrous body processed in the drying step is ground to a predetermined particle size by a mill. The preferred range of the particle size varies depending on the target product and is not generally defined, but from the results of the taste test shown in FIG. 4, it is determined that the following particle sizes are preferred. When used as a fortified food, the particle size is preferably 0.05 mm or less, and when used as a sprinkled food, the particle size is preferably 0.3 mm to 0.1 mm.

FIG. 5 shows a composition table of stalk powder obtained by the method of treating salted wakame stalks. As can be seen from the composition table, the content of dietary fiber having an effect of enhancing intestinal motility and the like is 46.4 (g / 100 g) and other foods shown in FIG. 6, for example, dried seaweed (27.1 g / 100 g) 100
g), dried seaweed (29.1 g / 100 g), dried radish (20.3 g / 100 g), burdock (11.1 g / 1)
00g), which is extremely large compared to other vegetables (2 g to 5 g / 100 g). The stem powder also contains a large amount of potassium, which is involved in the regulation of blood pH and blood pressure, calcium which is essential for bone and tooth formation, phosphorus which assists calcium intake, and iron which is involved in anemia. It is expected to be used effectively as a health food.

The powder of the stalk portion, which is the stem of the seaweed stalk, obtained as described above is used as it is as a fortified food, a seasoning,
It can be made into a useful product as tea, as a sprinkle by mixing dried small fish or dried vegetables with powder, or as a favorite product in combination with plum dried powder. In particular, the stem of seaweed contains a lot of alginic acid that enhances gastrointestinal peristalsis, and plum also has an organic acid that enhances gastrointestinal peristalsis similarly to alginic acid, citric acid that has the function of lowering blood pressure, and further intestinal action Since catechins containing catechin are contained, various effects such as constipation and prevention of colorectal cancer due to the synergistic action of these active ingredients are expected with respect to luxury products combined with powdered plum. Specifically, we are trying to commercialize jelly obtained by adding wakame stalk powder obtained by the present invention to plum juice or health tea obtained by adding umeboshi powder to wakame stalk powder obtained by the present invention. .

In the method of treating the stem of a salted seaweed according to the above-described embodiment, freeze-drying may be performed instead of drying with hot air in the drying step. Also, the target of powdering is
Not only the stem portion but also the unused leaf portion and bud portion can be included.

[0020]

As described above, according to the method for treating salted wakame stalks of the present invention, a step of finely splitting wakame stalks into fibrous fibrous bodies, And a drying step of drying the washed stem, and a powdering step of pulverizing the dried stem, so that the stem that has been shredded in the shredding step has an increased surface area. Therefore, salt can be removed from the stem of the salted seaweed as much as possible in the washing step, and it is easy to dry in the drying step, and it is efficiently treated in the powder step. Further, in the fission step, when the stalk is torn along the fiber direction of the stalk to form a fibrous body, the stalk is easily torn, so that the processing efficiency of the fission step can be improved. Furthermore, the maximum diameter of the fibrous body that tears the stem along the fiber direction is 4 mm to 5 mm.
When the thickness is set to mm, the surface area can be increased, the treatment efficiency of washing and drying can be improved, and the degree of damage to the cells constituting the stem can be suppressed. Furthermore, when a cutting step of cutting the fibrous body is provided after the shredding step,
It is possible to improve the handleability by shortening the length of the fibrous body, increase the surface area, and further improve the processing efficiency of washing and drying. In the cutting step, when the length of the fibrous body to be cut is set to 50 mm to 80 mm or less,
The handleability of the fibrous body and the efficiency of washing and drying can be further improved.

Further, in the washing step, when the salt content of the washed fiber is set to 1.0 g or less per 100 g of the fiber having a water content of 90% or more, the salt content of the obtained powder is reduced. In addition, the storage stability of the obtained powder can be improved. Furthermore, when the drying step is performed by applying warm air to the stem, the warm air can spread evenly over the stem, thereby improving the drying efficiency. In addition, in the drying step, when the drying temperature with warm air is set to 30 ° C. to 40 ° C., the stem can be dried without denaturing the active ingredient contained in the stem, and the drying time can be reduced. it can. Furthermore, when the moisture content of the stem is 8 to 10% by weight in the drying step, a good powder having no wettability can be obtained.

[Brief description of the drawings]

FIG. 1 is a flowchart of a method for treating salted seaweed stems according to an embodiment of the present invention.

FIG. 2 is a table showing the correlation between the water content and the state of the fibrous body and the powder obtained by the method for treating the stem of a salted seaweed according to the embodiment of the present invention.

FIG. 3 is a table showing the correlation between the drying temperature and the drying time in the drying step of the method for treating salted seaweed stalks according to the embodiment of the present invention.

FIG. 4 is a table showing the correlation between the particle size and the texture of the powder obtained in the powdering step of the method for treating salted seaweed stalks according to the embodiment of the present invention.

FIG. 5 is a table showing the components of a powder obtained by the method of treating stems of salted seaweed according to the embodiment of the present invention.

FIG. 6 is a table showing the dietary fiber content of other foods.

[Explanation of symbols]

 ──────────────────────────────────────────────────続 き Continued on the front page (72) Inventor Yoshio Murakami 6 Nagane-dong, Hirota-cho, Rikuzentakata-shi, Iwate Pref. (72) Inventor Satoru Yamasaki 32-9 Tomizawa, Tofunawa-cho, Ofunato-cho, Ofunato, Iwate (72) Invention Person Hidekazu Murakami Character collection 163, Hirota-cho, Rikuzentakata-shi, Iwate (72) Inventor Mitsuhide Ozaki 231, Ueyama, Suezaki-cho, Ofunato-shi, Iwate F term (reference) 4B019 LE04 LP01 LP03 LP04 LP07

Claims (9)

[Claims] 1. A method of treating a stem of a salted wakame, which comprises treating a stem removed from a salted wakame that has been blanched and then salted, comprising: a step of splitting the stem of the wakame into fine fibrous bodies; A method for treating stems of salted seaweed, comprising: a washing step of washing the fiberized stems with water, a drying step of drying the washed stems, and a powdering step of powdering the dried stems. . 2. The method for treating stems of salted wakame seaweeds according to claim 1, wherein, in the shredding step, the stems are torn in a fiber direction of the stems to form fibrous bodies. 3. The method for treating salted seaweed stems according to claim 2, wherein the maximum diameter of the fibrous body that tears the stems along the fiber direction is 4 mm to 5 mm. 4. The method for treating stems of salted seaweed according to claim 1, further comprising a cutting step of cutting the fibrous body after the shredding step. 5. The method according to claim 4, wherein in the cutting step, the length of the fibrous body to be cut is set to 50 mm to 80 mm or less. 6. In the washing step, a salt content of the washed fiber body is adjusted to 100 g of a fiber body having a water content of 90% or more.
The method for treating stems of salted seaweeds according to claim 1, 2, 3, 4, or 5, wherein the amount is 1.0 g or less. 7. The method for treating stems of salted wakame as claimed in claim 1, wherein the drying step is performed by blowing hot air on the stems. 8. The method according to claim 7, wherein in the drying step, a drying temperature by warm air is set to 30 ° C. to 40 ° C.
A method for treating the stem of a salted seaweed as described above. 9. The salted wakame as claimed in claim 1, wherein the water content of the stem is 8 to 10% by weight in the drying step. Stalk processing method.