Seashell-imitation nori filamentous culture film and method for producing the same

Abstract

This invention provides a seashell-imitation nori filamentous culture film that mimics the prismatic layer, nacreous layer, and limestone layer of a seashell, as well as a method for producing the same. [Solution] The seashell-imitation nori filamentous culture film according to the embodiment of the present invention is characterized by comprising: a base film layer; a filamentous growth layer formed on the upper part of the base film layer, which creates an environment in which nori filamentous bodies can penetrate and grow; and a filamentous protection layer formed on the upper part of the filamentous growth layer, which forms a number of fine pores through which the nori filamentous bodies can pass, and protects the nori filamentous bodies growing in the filamentous growth layer from the outside.

Description

Technical Field

[0001] The present invention relates to a shell-mimicking laver filament culture film and a method for manufacturing the same. More specifically, the present invention relates to a shell-mimicking laver filament culture film that mimics the prismatic layer, nacreous layer, and calcareous layer of a shell and enhances the infiltration rate and growth property of laver filaments due to its material and structural characteristics, and a method for manufacturing the same.

Background Art

[0002] In a general laver cultivation process, first, carpospores are collected from mature laver thalli, cultured in a culture container for about 2 to 3 months while adjusting the water temperature and illuminance to obtain glassy filaments, and then these glassy filaments are transplanted onto oyster shells. After the filaments enter the fine holes formed in the nacreous layer of the oyster shells and the filaments propagate and cystocarps are formed, the oyster shells with cystocarps formed at the appropriate seedling collection time are hung on laver slits, and by allowing the spores in the cystocarps to be released from the oyster shells and adhere to the laver slits by the tidal current and waves, the growth of laver thalli is achieved on the laver slits. This consists of a series of steps.

[0003] In the conventional culture method of filaments transplanted onto shells in laver cultivation, the method mainly used is to fill the bottom of a wooden or plastic box or a concrete tank with oyster shells and fill it with culture water so that the filaments transplanted onto the oyster shells can propagate.

[0004] However, such a method has problems in securing high-quality oyster shells, is troublesome in handling the oyster shells, and induces environmental pollution.

[0005] Furthermore, using oyster shells for filamentous culture required a lot of manpower because each shell had to be thoroughly washed before transplanting the filaments and then individually arranged on the bottom of the culture box or tank. This also resulted in increased transportation and labor costs due to the heavy weight during shipping. Additionally, a separate process of placing the shells in nets for spat collection and suspending them was required, and if there was significant overlap, the cost-benefit ratio for seed yield was poor. Moreover, all used oyster shells and spat collection nets had to be incinerated, causing environmental pollution.

[0006] Therefore, in order to solve these problems, the applicant has previously disclosed "Film for cultivating filamentous organisms for seaweed cultivation and method for cultivating filamentous organisms using the same" in Korean Registered Patent No. 10-2629468.

[0007] The applicant's registered patent in Korea includes a coated base film comprising a base film formed in a rectangular shape having a certain width and a coating film formed on the upper surface of the base film, wherein the base film and the coating film are made of biodegradable material, and the invention relates to a method for efficiently cultivating filamentous organisms for seaweed cultivation using this film, which solves the problem of raw material supply and demand by replacing oyster shells, which are difficult to supply and handle, and has the advantages of low manufacturing costs due to the absence of labor costs associated with washing and arranging oyster shells, excellent lightness making transportation easy and not causing environmental pollution.

[0008] On the other hand, in order to culture filaments more effectively using filamentous culture films, the filamentous culture films must be as similar as possible to the filamentous culture structure of oyster shells, have a high rate of filamentous infiltration, and provide sufficient space for the filaments to be cultured.

[0009] Therefore, in order to effectively cultivate filamentous nori seaweed, there is a need for a method that is more similar to the filamentous nori culture structure of oyster shells than conventional filamentous nori culture films, that can increase the penetration rate of filamentous nori, and that can secure sufficient culture space for the filamentous nori. [Overview of the Initiative] [Problems that the invention aims to solve]

[0010] The present invention was made to solve the above-mentioned problems, and its purpose is to provide a shell-imitating nori (seaweed) culture film and a method for producing the same, which is modeled to be as similar as possible to an oyster shell, which consists of a lime layer in which filamentous organisms cannot penetrate, a nacreous layer in which filamentous organisms can grow, and a prismatic layer that protects the filamentous organisms, and which forms a triple structure with a base film layer in which filamentous organisms cannot penetrate, a filamentous organism growth layer that creates a growth environment for filamentous organisms, and a filamentous organism protection layer that protects the filamentous organisms, thereby increasing the penetration rate and growth of nori filamentous organisms through the material and structural characteristics of each layer. [Means for solving the problem]

[0011] To achieve the above objectives, the present invention provides a seashell-like seaweed filamentous culture film comprising: a base film layer made of a biodegradable material; a filamentous growth layer formed on top of the base film layer to create an environment in which seaweed filamentous bodies can penetrate and grow; and a filamentous protection layer formed on top of the filamentous growth layer to form numerous micropores through which the seaweed filamentous bodies can pass, and to protect the seaweed filamentous bodies growing in the filamentous growth layer from the outside.

[0012] In a preferred embodiment, the filamentous growth layer is characterized by comprising a porous sheet in which a hydrophilic material is mixed with or reacted with a biological material that provides nutrients to the filamentous seaweed.

[0013] Furthermore, the biological material is characterized by being one or more powders or liquids selected from agar, pearl, glucose, sugar, yeast, chitosan, hyaluronic acid, vitamin A, vitamin E, vitamin K, calcium carbonate, sodium nitrate, calcium phosphate, potassium phosphate, sodium sulfate, calcium hydroxide, and magnesium hydroxide.

[0014] Furthermore, the filamentous protective layer is characterized by being a hydrophilic polymer film to which an antibacterial and deodorizing agent has been added.

[0015] Furthermore, the filamentous body protective layer is characterized in that a number of convex protrusions are formed on the lower surface facing the filamentous body growth layer, arranged to be spaced apart in the longitudinal and transverse directions, and is joined to the filamentous body growth layer via these numerous convex protrusions.

[0016] Furthermore, the base film layer, the filamentous growth layer, and the filamentous protection layer are each composed of one or more of the following: PBAT (Poly-Butylene Adipate Terephthalate), PBS (Polybutylene Succinate), PHA (Polyhydroxy alkanoate), PLA (PolyLactic Acid), PCL (Polycaprolactone), cross-linked PVA (Polyvinyl Alcohol), PGA (Polyglycolic acid), modified cellulose, and starch-modified resin, characterized in that they are either different or identical in material composition.

[0017] On the other hand, the present invention provides a method for producing a seashell-like nori filament culture film, comprising the steps of: preparing a base film and a hydrophilic polymer film; mixing a biomaterial with a polyol and stirring to produce a mixture; adding isocyanate to the mixture and stirring to produce a reactant; pouring the reactant onto the hydrophilic polymer film, maintaining its shape to a certain thickness, and then drying it to form a porous sheet on the hydrophilic polymer film; joining the hydrophilic polymer film and the porous sheet; physically or chemically treating the hydrophilic polymer film so that a certain pattern or equally spaced fine pores are generated on it; and adhering the porous sheet to the base film. [Effects of the Invention]

[0018] The present invention has the following excellent effects.

[0019] First, the shell-mimicking laver filament culture film according to an embodiment of the present invention has a triple structure including a base film layer into which filaments cannot penetrate, a filament growth layer that creates a filament growth environment, and a filament protection layer that protects the filaments, and provides an environment that maximally resembles the form of an oyster shell in which laver filaments can grow.

[0020] Also, in the shell-mimicking laver filament culture film according to an embodiment of the present invention, the filament growth layer is composed of a hydrophilic porous sheet containing agar or pearls, which are nutrients for laver filaments, and has the effect of enhancing the growth property of laver filaments.

[0021] Also, in the shell-mimicking laver filament culture film according to an embodiment of the present invention, the filament protection layer forms a large number of pores through which laver filaments can pass to reach the filament growth layer, and has the effect of increasing the penetration rate of laver filaments.

[0022] Also, the filament protection layer and the filament growth layer are joined by a large number of convex protrusions formed on the lower surface of the filament protection layer, which has the effect of providing a large number of culture spaces for laver filaments while improving the bonding strength.

[0023] On the other hand, the effects obtained by the present invention are not limited to the above-described effects, and other effects not described above will be clearly understood by those having ordinary knowledge in the technical field to which the present invention pertains from the following description.

Brief Description of the Drawings

[0024] [Figure 1] It is a diagram showing an enlarged view of a shell to explain the shell structure. [Figure 2] It is a diagram schematically showing the structure of the shell-mimicking laver filament culture film of the present invention. [Figure 3] It is a cross-sectional view showing the structure of the shell-mimicking laver filament culture film of the present invention in detail. [Figure 4] It is a diagram showing an enlarged view between the filament growth layer and the filament protection layer of the shell-mimicking laver filament culture film in FIG. 3. [Figure 5] This is a flowchart showing a method for manufacturing a shell-mimicking laver filament culture film of the present invention.

Embodiments for Carrying out the Invention

[0025] The terms used in the present invention are generally selected as widely used terms as possible at present. However, in specific cases, there are also terms arbitrarily selected by the applicant. In such cases, not just the name of the term should be considered, but also the meaning described or used in the detailed description part of the invention, and that meaning should be understood.

[0026] Hereinafter, the technical configuration of the present invention will be described in detail with reference to the preferred embodiments shown in the accompanying drawings.

[0027] However, the present invention is not limited to the embodiments described here and may be embodied in other forms. Throughout the specification, the same reference numerals indicate the same components.

[0028] FIG. 1 is a diagram showing an enlarged view of a shell to explain the shell structure.

[0029] Referring to FIG. 1, the shell is composed of a calcareous layer CL, a nacreous layer NL located above the calcareous layer CL, and a prismatic layer PL located above the nacreous layer NL.

[0030] The prismatic layer PL of the shell has a dense structure with pores composed of inorganic substances, and the nacreous layer (NL) has a relatively loose structure in which calcium carbonate (CaCO3) crystals are layered. Therefore, the laver filaments潜入 through the pores of the prismatic layer (PL) into the nacreous layer (NL), absorb nutrients from the nacreous layer (NL), and grow.

[0031] On the other hand, in the case of the calcareous layer (CL), since it is composed of calcium carbonate, the laver filaments cannot潜入.

[0032] The shell-imitation nori filamentous organism culture film according to an embodiment of the present invention replicates the structure of a seashell as described above and provides an environment that is as similar as possible to the morphology of an oyster shell on which nori filamentous organisms can grow.

[0033] Figure 2 is a schematic diagram showing the structure of the seashell-imitating nori filamentous culture film of the present invention, and Figure 3 is a detailed cross-sectional view showing the structure of the seashell-imitating nori filamentous culture film of the present invention.

[0034] Referring to Figures 2 and 3, the seashell-imitation nori filamentous culture film 100 according to an embodiment of the present invention is formed in a triple-layer structure including a base film layer 110, a filamentous growth layer 120, and a filamentous protection layer 130.

[0035] Specifically, the base film layer 110 is a replica of the limestone layer CL of a seashell, forms the bottom of the film 100, is made of a biodegradable material, and may be a flexible, transparent or translucent material that allows light to pass through.

[0036] More specifically, the base film layer 110 is composed of one or more of the following materials, which are biodegradable, flexible, and transparent or translucent: PBAT (Poly-Butylenen Adipate Terephthalate), PBS (Polybutylene Succinate), PHA (Polyhydroxy alkanoate), PLA (PolyLactic Acid), PCL (Polycaprolactone), cross-linked PVA (Polyvinyl Alcohol), PGA (Polyglycolic Acid), modified cellulose, and starch-modified resin.

[0037] Since the base film layer 110 is made of biodegradable material, it can be landfilled when disposed of, and after landfilling, it biodegrades within a few months and does not cause environmental pollution.

[0038] Furthermore, because the base film layer 110 is flexible, it can be manufactured in a roll shape, offering advantages in terms of manufacturing and handling. Since it is made of a transparent or translucent material, it increases the possibility of transmitting light reflected towards the bottom of the culture tank, facilitating microscopic examination.

[0039] The base film layer 110 preferably has a certain thickness and may have the same shape as the culture tank, but is not necessarily limited to this, and its thickness or shape may change depending on the user's intentions and usage environment.

[0040] The filamentous growth layer 120 mimics the nacreous layer NL of a seashell and is formed on top of the base film layer 110, creating an environment in which the filamentous nori can penetrate and grow.

[0041] Preferably, the filamentous growth layer 120 consists of a porous sheet in which a bio-material that provides nutrients to the filamentous seaweed is mixed with or reacted with a hydrophilic material.

[0042] The aforementioned biological material can be anything that can provide nutrients to the filamentous seaweed, but as an example, it may be one or more of the following: agar, pearl, glucose, sugar, yeast, chitosan, hyaluronic acid, vitamin A, vitamin E, vitamin K, calcium carbonate, sodium nitrate, calcium phosphate, potassium phosphate, sodium sulfate, calcium hydroxide, or magnesium hydroxide, and is mixed or reacted with the filamentous growth layer 120 in powder or liquid form to form a porous sheet.

[0043] The filamentous growth layer 120 can be composed of a hydrophilic biodegradable material, specifically one or more of the following: PBAT (Poly-Butylenen Adipate Terephthalate), PBS (Polybutylene Succinate), PHA (Polyhydroxy alkanoate), PLA (PolyLactic Acid), PCL (Polycaprolactone), cross-linked PVA (Polyvinyl Alcohol), PGA (Polyglycolic Acid), modified cellulose, and starch-modified resin.

[0044] In other words, the filamentous growth layer 120 is a mixture or reaction of the bio-material with a hydrophilic biodegradable material, and the filamentous growth layer 120 is composed of a porous or single sheet of a certain thickness, and a certain space is provided between it and the filamentous protection layer 130, allowing the nori filaments to grow sufficiently and to grow effectively by receiving nutrients from the bio-material.

[0045] Since the filamentous growth layer 120 is also made of biodegradable material, it can be landfilled when discarded, and after landfilling, it biodegrades within a few months without causing environmental pollution. Furthermore, because it is flexible, it can be manufactured in roll form, demonstrating advantages in terms of manufacturing and handling.

[0046] On the other hand, the filamentous growth layer 120 is configured such that it is made of the same or different material as the base film layer 110.

[0047] The filamentous organism protective layer 130 mimics the prismatic layer PL of a seashell, and is formed on top of the filamentous organism growth layer 120 to protect the filamentous organisms of the seaweed growing in the filamentous organism growth layer 120 from the outside, and forms numerous fine pores 132 through which the seaweed organisms can pass.

[0048] The aforementioned micropores 132 are pores with a diameter of approximately 10 to 100 μm, and penetrate the filamentous protective layer 130 and continue toward the filamentous growth layer 120, thereby helping to facilitate the passage of seaweed filaments flowing in from the outside and their infiltration into the filamentous growth layer 120.

[0049] The filamentous protective layer 130 is a biodegradable hydrophilic polymer film having a constant thickness of 1 to 20 μm and being physically or chemically treated to create micropores 132, or having a fibrous structure that forms micropores 132 like a nonwoven fabric, and can be composed of one or more of the following: PBAT (Poly-Butylene Adipate Terephthalate), PBS (Polybutylene Succinate), PHA (Polyhydroxy alkanoate), PLA (PolyLactic Acid), PCL (Polycaprolactone), cross-linked PVA (Polyvinyl Alcohol), PGA (Polyglycolic acid), modified cellulose, and starch-modified resin.

[0050] Furthermore, the filamentous protective layer 130 is either treated with an antibacterial deodorant or has an antibacterial agent added to it, protecting the filamentous nori growing in the filamentous growth layer 120 from viruses and bacteria.

[0051] The filamentous protective layer 130 may be made of the same material as the base film layer 110 or the filamentous growth layer 120, or it may be made of a different material.

[0052] Since the filamentous protective layer 130 is also made of biodegradable material, it can be landfilled when disposed of, and after landfilling, it biodegrades within a few months without causing environmental pollution. Furthermore, because it is flexible, it can be manufactured in roll form, demonstrating advantages in manufacturing and handling.

[0053] Furthermore, since the filamentous protective layer 130 is light-transmitting, light can easily reach the filamentous growth layer 120, enabling the cultivation of seaweed filaments even at low illuminance levels and reducing the likelihood of diatom growth.

[0054] On the other hand, the filamentous body protective layer 130 has a number of convex protrusions 135 formed on its lower surface facing the filamentous body growth layer 120, which are spaced apart in the vertical and horizontal directions, and is joined to the filamentous body growth layer 120 via these convex protrusions 135.

[0055] Figure 4 is a magnified view of the area between the filamentous growth layer and the filamentous protection layer of the seashell-imitating nori filamentous culture film shown in Figure 3.

[0056] Referring to Figure 4, it can be seen that numerous protrusions 135 are formed on the lower surface of the filamentous protective layer 130, and that the filamentous protective layer 130 is joined to the filamentous growth layer 120 via these numerous protrusions 135.

[0057] Here, the protrusions 135 are joined to the filamentous growth layer 120 using an adhesive or by applying heat. Not only do the protrusions 135 improve the bonding strength, but as shown in the figure, they also form numerous filamentous culture spaces 140 where filaments can grow between the protrusions 135 between the filamentous protective layer 130 and the filamentous growth layer 120.

[0058] The seashell-imitation nori filamentous culture film 100 of the present invention not only provides sufficient space for cultivating nori filamentous organisms and effectively cultivates them, but also exhibits excellent interlayer adhesion to prevent peeling and superior durability.

[0059] On the other hand, the spacing between the convex protrusions 135 may be 10 μm to 1 mm or less.

[0060] The method for producing the seashell-imitating nori filamentous culture film described above will be explained below with reference to Figure 5.

[0061] Figure 5 is a flowchart showing the method for producing the seashell-imitating nori filamentous culture film of the present invention.

[0062] Referring to Figure 5, the method for producing the seashell-like nori filamentous culture film of the present invention first involves the step of preparing a base film 110 and a hydrophilic polymer film 130, although this is not shown in the drawing.

[0063] Furthermore, as shown in Figure 5(a), the polyol P is mixed with agar powder (not shown) or pearl powder B, and then stirred to produce a mixture (S110).

[0064] Furthermore, as shown in Figure 5(a), the isocyanate I is added to the mixture and stirred to produce a reaction product (S110).

[0065] Furthermore, as shown in Figure 5(b), the reactant S is poured onto the hydrophilic polymer film 130, maintained at a constant thickness, and then dried to form a porous sheet 120 on the hydrophilic polymer film 130, and a step (S120) is performed to bond the hydrophilic polymer film 130 and the porous sheet 120.

[0066] Here, the porous sheet 120 is bonded to the surface of the hydrophilic polymer film 130 that forms the convex protrusions 135.

[0067] Furthermore, as shown in Figure 5(c), a step (S130) is performed to physically or chemically treat the hydrophilic polymer film 130 to which the porous sheet 120 is bonded so that a certain pattern or equally spaced fine pores 132 are created.

[0068] Furthermore, as shown in Figure 5(d), a step (S140) is performed to bond the porous sheet 120 to which the hydrophilic polymer film 130 is bonded to the base film 110.

[0069] As described above, preferred embodiments of the present invention have been illustrated and described, but the invention is not limited to these embodiments, and various modifications and alterations may be made by persons with ordinary skill in the art to which the invention pertains without departing from the spirit of the invention. [Explanation of Symbols]

[0070] 100 Seashell-imitation Nori filamentous culture film 110 Base film layer 120 Filamentous growth layer 130 Filamentous protective layer 132 Micropores 135 Convex protrusion 140 filamentous plant culture space

Claims

1. A base film layer made of biodegradable material, A filamentous growth layer is formed on top of the base film layer, creating an environment in which filamentous seaweed can penetrate and grow, A seashell-imitation seaweed filamentous culture film comprising: a filamentous protective layer formed on the upper part of the filamentous growth layer, which has numerous fine pores through which the seaweed filamentous bodies can pass, and which protects the seaweed filamentous bodies growing in the filamentous growth layer from the outside.

2. The aforementioned filamentous growth layer is, The seashell-imitation seaweed filament culture film according to claim 1, characterized in that the biological material that provides nutrients to the seaweed filamentous body is made of a porous sheet in which the biological material is mixed with or reacted with a hydrophilic material.

3. The aforementioned biological material is The seashell-imitation nori filamentous culture film according to claim 2, characterized in that it is one or more powders or liquids selected from agar, pearl, glucose, sugar, yeast, chitosan, hyaluronic acid, vitamin A, vitamin E, vitamin K, calcium carbonate, sodium nitrate, calcium phosphate, potassium phosphate, sodium sulfate, calcium hydroxide, and magnesium hydroxide.

4. The seashell-imitation seaweed filamentous culture film according to claim 1, characterized in that the filamentous protective layer is a hydrophilic polymer film to which an antibacterial deodorant has been added.

5. The seashell-like nori filamentous organism culture film according to claim 1, characterized in that the filamentous organism protective layer has a number of convex protrusions formed on its lower surface facing the filamentous organism growth layer, which are spaced apart in the longitudinal and transverse directions, and is joined to the filamentous organism growth layer via the number of convex protrusions.

6. The base film layer, the filamentous growth layer, and the filamentous protective layer are each composed of one or more of the following: PBAT (Poly-Butylene Adipate Terephosphate), PBS (Polybutylene Succinate), PHA (Polyhydroxy Alkanoate), PLA (PolyLactic Acid), PCL (Polycaprolactone), cross-linked PVA (Polyvinyl Alcohol), PGA (Polyglycolic Acid), modified cellulose, and starch-modified resin. The seashell-imitation nori filamentous culture film according to claim 1, characterized in that the materials are either different or identical to each other.

7. The steps include preparing a base film and a hydrophilic polymer film, The process involves mixing a biomaterial with a polyol and then stirring to produce a mixture, The steps include adding isocyanate to the mixture and stirring to produce a reaction product, The steps include pouring the reaction mixture onto the hydrophilic polymer film, maintaining its shape at a constant thickness, drying it to form a porous sheet on the hydrophilic polymer film, and joining the hydrophilic polymer film and the porous sheet, The steps include physically or chemically treating the hydrophilic polymer film so that a certain pattern or equally spaced fine pores are formed in it, A method for producing a seashell-imitation nori filamentous culture film, comprising the step of adhering the porous sheet to the base film.

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