JPH11130973A - Method for obtaining fish scale flake - Google Patents

Abstract

PROBLEM TO BE SOLVED: To effectively utilize bony parts of fishes conventionally discarded in large amts. and obtain fish scale flakes, i.e., a high-value-added high-class pigment having a pearlescent luster, at a low cost by extracting nucleic acid- related compds. from the bony parts with a solvent. SOLUTION: Bony parts of fishes, i.e., a mixture of internal organs, tissues, organs, body liquids, etc., of fishes with sea water, stored in warehouses for fishes caught by fishing boats are subjected to extraction with an org. solvent such as a hydrocarbon, a halogenated hydrocarbon, an alcohol, a phenol, an ether, a ketone, a fatty acid, an acid anhydride, an ester, or a nitrogen compd. to obtain fish scale flakes mainly comprising nucleic acid-related compds. and having a pearlescent luster. The extraction can be conducted by a known method, such as disclosed by Jpn. Kokoku 72-306, Jpn. Kokoku 78-22069, or NACREOUS PIGMENTS; Progress in organic coatings, 3 (1975), 191-220.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

TECHNICAL FIELD The present invention relates to a pearlescent pigment,
The present invention relates to a method for obtaining fish scale foil, which is a pearl pigment mainly containing nucleic acid such as guanine, and to a method for obtaining a raw material from fish-derived ara.

[0002]

2. Description of the Related Art Conventionally, in fishing ports, scales that have fallen off from fish have clogged the gutters, causing problems such as reducing the efficiency of landing operations, and attempts to effectively use scales have been made from various perspectives. Is being done. Above all, Japanese Patent Publication No. 47-306,
As shown in JP-B-53-22068, a fish scale foil exhibiting a beautiful pearl luster has been obtained using fish scale peeled from fish epithelium as a raw material. However, the problem at fishing ports is not only scale damage, but also the problem of marine pollution due to the disposal of ara, which is fish that accumulates at the bottom of fishing boats, etc., but the effective use of ara has not been advanced. On the other hand, fish scale foil with an elegant pearl luster has high reflectivity and excellent heat resistance, sulfidation resistance and solvent resistance (coating technology, vol.4, p.136-139 (1988)),
It is used as a high-grade pigment in fields such as cosmetic materials and automotive coatings. Fish scales such as herring and swordfish are well known as raw materials for producing fish scale foil, but it is not known to produce fish scale foil using ara.

[0003]

SUMMARY OF THE INVENTION In view of the above facts, it is an object of the present invention to effectively utilize a large amount of ara which has been discarded in the past, to solve the harm of the ara, and to provide a high value-added pearlescent luster. An object of the present invention is to obtain inexpensively fish scale foil which is a high-grade pigment having

[0004]

That is, the present invention relates to a method for collecting fish scale foil, comprising solvent-extracting a nucleic acid-related compound from fish-derived ara.

[0005]

BEST MODE FOR CARRYING OUT THE INVENTION In the practice of the present invention, a liquid derived from a mixture of sea organs and various organs, tissues, organs, body fluids, etc. of fish stored in a fish storage tank of a fishing boat is collected and a known method (Japanese Patent Publication No. No. 47-306, JP-B-53-22068, NACREOUS PIGMENTS, progress in Organic Coating
s, 3 (1975) 191-220) to obtain fish scale foil.

[0006] In the present invention, "ara" refers to a mixture derived from biological components such as organs, tissues, organs, body fluids, etc. of fish and seawater, which are stored in a fish hold, which is a storage tank for fish caught by a fishing boat.

[0007] In the present invention, fish scale foil refers to a composition having a pearly luster mainly containing nucleic acid-related compounds such as purines such as guanine, hypoxanthine and uric acid.

In the present invention, an organic solvent is referred to as a solvent handbook (edited by Kodansha Scientific, Teruzo Asahara et al., P143).
To p852), hydrocarbons, halogenated hydrocarbons, alcohols, phenols, ethers, ketones, fatty acids, acid anhydrides, esters, nitrogen compounds, and any of these. Can also be used.

In the above, the nucleic acid-related substance is a substance described in the Biochemical Data Book, 1st edition (edited by The Biochemical Society of Japan, Tokyo Kagaku Dojin, p.1033 to p.1055), and includes bases, nucleosides, ribonucleotides, Refers to deoxyribonucleotides.

[0010]

Hereinafter, the present invention will be described with reference to Examples.
The scope of the present invention is not limited only to these examples.

(Example 1) An organic solvent such as ether is added to ara collected from Uokura, and after shaking and standing well, the nucleic acid component is contained in the upper organic solvent layer separated into two layers. Then 5
The operation of adding a double volume of water, stirring and washing was repeated 5 to 6 times to remove water-soluble impurities, and the precipitate was obtained by filtration. A 15-fold amount of an alcohol containing 5% ammonia was added to the precipitate and stirred for about 10 minutes to obtain a precipitate. Alcohol was further added thereto, and a precipitate was obtained by centrifugation. Finally, it was washed with an alcohol containing 5% of glacial acetic acid to obtain a fish scale foil.

[0012]

Industrial Applicability The present invention solves the harm of ara by using ara as a cause of marine pollution, which has been conventionally discarded, and obtains fish scale foil which is a high-grade pigment having pearl luster at low cost. Became possible.

Claims (1)

[Claims] 1. A method for collecting fish scale foil, comprising extracting a nucleic acid-related compound from a fish-derived ala with a solvent.