JP2018203852A5 - Method for reducing formaldehyde in acidic low formaldehyde wood vinegar and stock solution of wood vinegar - Google Patents
Method for reducing formaldehyde in acidic low formaldehyde wood vinegar and stock solution of wood vinegar Download PDFInfo
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- JP2018203852A5 JP2018203852A5 JP2017109604A JP2017109604A JP2018203852A5 JP 2018203852 A5 JP2018203852 A5 JP 2018203852A5 JP 2017109604 A JP2017109604 A JP 2017109604A JP 2017109604 A JP2017109604 A JP 2017109604A JP 2018203852 A5 JP2018203852 A5 JP 2018203852A5
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- wood vinegar
- formaldehyde
- stock solution
- solution
- reducing
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- WSFSSNUMVMOOMR-UHFFFAOYSA-N formaldehyde Chemical compound O=C WSFSSNUMVMOOMR-UHFFFAOYSA-N 0.000 title claims description 56
- 239000000052 vinegar Substances 0.000 title claims description 45
- 239000002023 wood Substances 0.000 title claims description 45
- 239000011550 stock solution Substances 0.000 title claims description 24
- 230000002378 acidificating Effects 0.000 title claims description 12
- QIVBCDIJIAJPQS-SECBINFHSA-N D-tryptophane Chemical compound C1=CC=C2C(C[C@@H](N)C(O)=O)=CNC2=C1 QIVBCDIJIAJPQS-SECBINFHSA-N 0.000 claims 1
- 239000000243 solution Substances 0.000 description 23
- QIVBCDIJIAJPQS-VIFPVBQESA-N L-tryptophane Chemical compound C1=CC=C2C(C[C@H](N)C(O)=O)=CNC2=C1 QIVBCDIJIAJPQS-VIFPVBQESA-N 0.000 description 8
- 229960004799 Tryptophan Drugs 0.000 description 7
- 239000012085 test solution Substances 0.000 description 7
- 230000000844 anti-bacterial Effects 0.000 description 4
- 238000007865 diluting Methods 0.000 description 4
- 230000001988 toxicity Effects 0.000 description 4
- 231100000419 toxicity Toxicity 0.000 description 4
- HYBBIBNJHNGZAN-UHFFFAOYSA-N Furfural Chemical compound O=CC1=CC=CO1 HYBBIBNJHNGZAN-UHFFFAOYSA-N 0.000 description 3
- 239000011276 wood tar Substances 0.000 description 3
- 239000000203 mixture Substances 0.000 description 2
- 229960000583 Acetic Acid Drugs 0.000 description 1
- QTBSBXVTEAMEQO-UHFFFAOYSA-N acetic acid Chemical compound CC(O)=O QTBSBXVTEAMEQO-UHFFFAOYSA-N 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 231100000956 nontoxicity Toxicity 0.000 description 1
- 230000036962 time dependent Effects 0.000 description 1
Description
本発明は、酸性の低ホルムアルデヒド木酢液及び木酢液原液中のホルムアルデヒド低減方法に関する。 The present invention relates to an acidic low-formaldehyde wood vinegar solution and a method for reducing formaldehyde in a stock solution of wood vinegar solution .
本発明は、上記問題を解決するものであって、木酢液原液を希釈しないで毒性を低減した酸性の低ホルムアルデヒド木酢液及び木酢液原液中のホルムアルデヒド低減方法を提供するものである。 The present invention solves the above problems and provides an acidic low-formaldehyde wood vinegar solution which has reduced toxicity without diluting the wood vinegar solution stock solution and a method for reducing formaldehyde in the wood vinegar solution stock solution .
本発明の酸性の低ホルムアルデヒド木酢液は、ホルムアルデヒド濃度が５ｐｐｍ（Ｗ／Ｖ）未満であるものである。
本発明の木酢液原液中のホルムアルデヒド低減方法は、木酢液原液にトリプトファンを溶解させるようにしたものである。
Low Formaldehyde vinegar acid of the present invention, the formaldehyde concentration is Der shall less than 5ppm (W / V).
The method for reducing formaldehyde in the wood vinegar stock solution of the present invention is to dissolve tryptophan in the wood vinegar stock solution.
本発明の酸性の低ホルムアルデヒド木酢液は、ホルムアルデヒド濃度が５ｐｐｍ（Ｗ／Ｖ）未満のものである以外は、木酢液原液の組成がほとんど変わることなく保持されているものである。これにより、使用に際して毒性が無く、抗菌性を有する木酢液の原液を提供することができる。
本発明の木酢液原液中のホルムアルデヒド低減方法によると、木酢液原液を希釈しないで毒性を低減した酸性の木酢液を得ることができる。この方法により得られる木酢液は、木酢液原液と同じように、農業資材や日用品として使用することができ、木酢液に期待する効果を十分に得ることができるものである。また、人体に害を与えないものである。
The acidic low-formaldehyde wood vinegar of the present invention retains the composition of the wood vinegar stock solution almost unchanged except that the formaldehyde concentration is less than 5 ppm (W / V). As a result, it is possible to provide a stock solution of wood vinegar that has no toxicity when used and has antibacterial properties.
According to the method for reducing formaldehyde in a stock solution of wood vinegar of the present invention, an acidic wood vinegar solution with reduced toxicity can be obtained without diluting the stock solution of wood vinegar. The wood vinegar solution obtained by this method can be used as an agricultural material or daily necessities as with the wood vinegar solution stock solution, and the effects expected from the wood vinegar solution can be sufficiently obtained. In addition, it does not harm the human body.
本発明は、木酢液原液を希釈しないで毒性を低減した酸性の低ホルムアルデヒド木酢液及び木酢液原液中のホルムアルデヒド低減方法を提供することを実現するものである。 The present invention aims to provide an acidic low-formaldehyde wood vinegar solution which has reduced toxicity without diluting the wood vinegar stock solution and a method for reducing formaldehyde in the wood vinegar stock solution .
次に、本発明の酸性の低ホルムアルデヒド木酢液及び木酢液原液中のホルムアルデヒド低減方法を試験例によって説明する。
（試験例１）
市販の木酢液（合同会社ツリーワーク製）のホルムアルデヒド濃度を測定したところ、１７９ｐｐｍ（Ｗ／Ｖ）（＝６ｍｍｏｌ／Ｌ）であった。この木酢液のｐＨは２．９であった。
上記木酢液の原液から２０ｍＬずつ３回取出し、それぞれ試験液Ａ、試験液Ｂ及び試験液Ｃの試験液とした。試験液Ａ〜Ｃのそれぞれに、Ｌ−トリプトファン（関東化学株式会社製）を終濃度が３ｍｍｏｌ／Ｌ（試験液Ａ）、６ｍｍｏｌ／Ｌ（試験液Ｂ）、１２ｍｍｏｌ／Ｌ（試験液Ｃ）になるように添加した。添加後、各試験液を撹拌してトリプトファンを溶解し、２０℃の恒温器に一定期間（７日間）放置した状態で、試験液中のホルムアルデヒド濃度の経時変化を測定した。
Next, the method for reducing formaldehyde in the acidic low-formaldehyde wood vinegar solution and wood vinegar solution stock solution of the present invention will be described by way of test examples.
(Test Example 1)
The formaldehyde concentration of a commercially available wood vinegar (manufactured by Godo Kaisha Treework) was measured and found to be 179 ppm (W / V) (= 6 mmol / L). The pH of this wood vinegar solution was 2.9.
20 mL each was taken out three times from the stock solution of the above-mentioned wood vinegar solution to obtain test solutions A, B and C, respectively. For each of the test solutions A to C, L-tryptophan (manufactured by Kanto Kagaku Co., Ltd.) was added to a final concentration of 3 mmol / L (test solution A), 6 mmol / L (test solution B), and 12 mmol / L (test solution C). Was added. After the addition, each test solution was stirred to dissolve tryptophan, and allowed to stand in a thermostat at 20 ° C. for a certain period of time (7 days), and the time-dependent change of formaldehyde concentration in the test solution was measured.
以上のように、本発明の酸性の低ホルムアルデヒド木酢液及び木酢液原液中のホルムアルデヒド低減方法は、ホルムアルデヒドを含む木酢液にトリプトファンを添加し、一定期間ホルムアルデヒドとトリプトファンを反応させることにより、木酢液原液を希釈しないで毒性を低減した木酢液を提供するものである。
本発明の酸性の低ホルムアルデヒド木酢液及び木酢液原液中のホルムアルデヒド低減方法により得られる木酢液は、ホルムアルデヒドが除かれる又は低減される以外は、トリプトファン添加前の木酢液原液の組成とほとんど変わりなく、ｐＨにも変化がないものである。
従って、本発明の酸性の低ホルムアルデヒド木酢液及び木酢液原液中のホルムアルデヒド低減方法により得られる木酢液は、トリプトファン添加前の木酢液原液と同様、抗菌性を保持するものであり、使用に際してホルムアルデヒドが揮発しないものであるか、もしくは揮発しても人体に影響を及ぼすおそれがないものである。
また、本発明の酸性の低ホルムアルデヒド木酢液及び木酢液原液中のホルムアルデヒド低減方法により得られる木酢液は、木タールは変化しないため、木タールの展着性が維持され、高い抗菌性を有するものになる。また、木タール自体が持つ抗菌性も維持される。
As described above, the method for reducing formaldehyde in the acidic low-formaldehyde wood vinegar solution and wood vinegar stock solution of the present invention is to add tryptophan to wood vinegar solution containing formaldehyde, and react the formaldehyde and tryptophan for a certain period of time to prepare the wood vinegar stock solution. It is intended to provide a wood vinegar solution with reduced toxicity without diluting.
The wood vinegar solution obtained by the method of reducing formaldehyde in the acidic low-formaldehyde wood vinegar solution and wood vinegar solution stock solution of the present invention is almost the same as the composition of the wood vinegar stock solution before tryptophan addition, except that formaldehyde is removed or reduced. There is no change in pH.
Therefore, the wood vinegar solution obtained by the method of reducing formaldehyde in the acidic low-formaldehyde wood vinegar solution and wood vinegar solution stock solution of the present invention retains antibacterial properties like the wood vinegar stock solution before addition of tryptophan, and formaldehyde is It does not volatilize, or even if it volatilizes, it does not affect the human body.
Further, the wood vinegar obtained by the method for reducing the formaldehyde in the acidic low-formaldehyde wood vinegar and the stock solution of wood vinegar of the present invention, the wood tar does not change, so that the spreading property of the wood tar is maintained and it has a high antibacterial property. become. In addition, the antibacterial property of the wood tar itself is maintained.
Claims (2)
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2017109604A JP6874984B2 (en) | 2017-06-02 | 2017-06-02 | Method for reducing formaldehyde in acidic low-formaldehyde wood vinegar and wood vinegar stock solution |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2017109604A JP6874984B2 (en) | 2017-06-02 | 2017-06-02 | Method for reducing formaldehyde in acidic low-formaldehyde wood vinegar and wood vinegar stock solution |
Publications (3)
| Publication Number | Publication Date |
|---|---|
| JP2018203852A JP2018203852A (en) | 2018-12-27 |
| JP2018203852A5 true JP2018203852A5 (en) | 2020-04-30 |
| JP6874984B2 JP6874984B2 (en) | 2021-05-19 |
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| Application Number | Title | Priority Date | Filing Date |
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| JP2017109604A Active JP6874984B2 (en) | 2017-06-02 | 2017-06-02 | Method for reducing formaldehyde in acidic low-formaldehyde wood vinegar and wood vinegar stock solution |
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| Country | Link |
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| JP (1) | JP6874984B2 (en) |
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