JP2021116280A - 防藻剤 - Google Patents
防藻剤 Download PDFInfo
- Publication number
- JP2021116280A JP2021116280A JP2020012752A JP2020012752A JP2021116280A JP 2021116280 A JP2021116280 A JP 2021116280A JP 2020012752 A JP2020012752 A JP 2020012752A JP 2020012752 A JP2020012752 A JP 2020012752A JP 2021116280 A JP2021116280 A JP 2021116280A
- Authority
- JP
- Japan
- Prior art keywords
- algae
- resin
- hydroxybenzoate
- agent
- proofing agent
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
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- 230000002353 algacidal effect Effects 0.000 title abstract 4
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- 125000003118 aryl group Chemical group 0.000 claims abstract description 8
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- 229910052783 alkali metal Chemical group 0.000 claims abstract description 6
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- -1 4-hydroxybenzoic acid ester Chemical class 0.000 claims description 28
- FJKROLUGYXJWQN-UHFFFAOYSA-N papa-hydroxy-benzoic acid Natural products OC(=O)C1=CC=C(O)C=C1 FJKROLUGYXJWQN-UHFFFAOYSA-N 0.000 claims description 22
- 229940090248 4-hydroxybenzoic acid Drugs 0.000 claims description 20
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- 125000004432 carbon atom Chemical group C* 0.000 claims description 8
- SJNCMISSTSMUFF-UHFFFAOYSA-N hexadecyl 4-hydroxybenzoate Chemical compound CCCCCCCCCCCCCCCCOC(=O)C1=CC=C(O)C=C1 SJNCMISSTSMUFF-UHFFFAOYSA-N 0.000 claims description 6
- 238000000034 method Methods 0.000 claims description 6
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- FJKROLUGYXJWQN-UHFFFAOYSA-M 4-hydroxybenzoate Chemical compound OC1=CC=C(C([O-])=O)C=C1 FJKROLUGYXJWQN-UHFFFAOYSA-M 0.000 abstract description 5
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Landscapes
- Agricultural Chemicals And Associated Chemicals (AREA)
Abstract
Description
〔1〕式(1)
で表される4−ヒドロキシ安息香酸エステルを含む防藻剤。
〔2〕前記式(1)中、R1は水素原子を示す、〔1〕に記載の防藻剤。
〔3〕前記式(1)中、R2は炭素原子数6〜18のアルキル基またはアリール基を示す、〔1〕または〔2〕に記載の防藻剤。
〔4〕前記式(1)中、R2はアルキル基を示す、〔1〕〜〔3〕のいずれかに記載の防藻剤。
〔5〕式(1)で表される4−ヒドロキシ安息香酸エステルは、4−ヒドロキシ安息香酸ヘキシル、4−ヒドロキシ安息香酸エチルヘキシルおよび4−ヒドロキシ安息香酸ヘキサデシルからなる群から選択される1種以上である、〔1〕に記載の防藻剤。
〔6〕藻類が生育可能な被処理領域または被処理体に、〔1〕〜〔3〕のいずれかに記載の防藻剤を適用し、藻類を防徐または藻類の発生を予防する方法。
(2)式(1)で表される4−ヒドロキシ安息香酸エステルを固体担体に担持させて防藻剤として使用する形態。
(3)式(1)で表される4−ヒドロキシ安息香酸エステルを液体に溶解または分散させた液状組成物を防藻剤として使用する形態。
(4)式(1)で表される4−ヒドロキシ安息香酸エステルを樹脂中に練り込んだ樹脂組成物を防藻剤として使用する形態。
ユーグレナ・グラシリス(Euglena gracilis)などのユーグレナ(Euglena)属などを含むミドリムシ藻類。
実施例および比較例に用いた防藻剤A〜D、および試験対象藻類1〜5と使用培地を以下に示す。
防藻剤A:4−ヒドロキシ安息香酸ヘキシル(上野製薬株式会社製)
防藻剤B:4−ヒドロキシ安息香酸エチルヘキシル(上野製薬株式会社製)
防藻剤C:4−ヒドロキシ安息香酸ヘキサデシル(上野製薬株式会社製)
防藻剤D:4−ヒドロキシ安息香酸メチル(上野製薬株式会社製)
藻類1:クロレラ・ヴルガリス:Chlorella vulgaris NIES−2170(使用培地:C培地)
藻類2:ノストック・コミュン:Nostoc commune NIES−24(使用培地:MDM培地)
藻類3:オシラトリア・ラエテヴイレンス:Oscillatoria laetevirens NIES−31(使用培地:MDM培地)
藻類4:エオリムナ・ミニマ:Eolimna minima NIES−2720(使用培地:CSi培地)
藻類5:ゴンフォネマ・パルブルム:Gomphonema parvulum NIES−2723(使用培地:CSi培地)
4−ヒドロキシ安息香酸ヘキシル0.04g、ジメチルスルホシキド(DMSO)500μL、培地9.46mLをサンプル管へ投入し、ボルテックスミキサーにて1分間撹拌し、前調製液(4−ヒドロキシ安息香酸ヘキシル濃度4000μg/mL)を作製した。各試験対象藻類に対し、試験管を12本準備し、左端の試験管へ前調製液を3mL、それ以外の試験管へは培地1.5mLを採取した。
結果を表1に示す。
4−ヒドロキシ安息香酸ヘキシルを4−ヒドロキシ安息香酸エチルヘキシルに変更した以外は実施例1と同様にして最小発育阻止濃度を算出した。結果を表1に示す。
4−ヒドロキシ安息香酸ヘキシルを4−ヒドロキシ安息香酸ヘキサデシルに変更した以外は実施例1と同様にして最小発育阻止濃度を算出した。結果を表1に示す。
4−ヒドロキシ安息香酸ヘキシルを4−ヒドロキシ安息香酸メチルに変更した以外は実施例1と同様にして最小発育阻止濃度を算出した。結果を表1に示す。
Claims (6)
- 前記式(1)中、R1は水素原子を示す、請求項1に記載の防藻剤。
- 前記式(1)中、R2は炭素原子数6〜18のアルキル基またはアリール基を示す、請求項1または2に記載の防藻剤。
- 前記式(1)中、R2はアルキル基を示す、請求項1〜3のいずれかに記載の防藻剤。
- 式(1)で表される4−ヒドロキシ安息香酸エステルは、4−ヒドロキシ安息香酸ヘキシル、4−ヒドロキシ安息香酸エチルヘキシルおよび4−ヒドロキシ安息香酸ヘキサデシルからなる群から選択される1種以上である、請求項1に記載の防藻剤。
- 藻類が生育可能な被処理領域または被処理体に、請求項1〜3のいずれかに記載の防藻剤を適用し、藻類を防徐または藻類の発生を予防する方法。
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Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH06340504A (ja) * | 1993-06-01 | 1994-12-13 | Yoshitomi Pharmaceut Ind Ltd | 水中防汚剤 |
JP2018172347A (ja) * | 2017-03-31 | 2018-11-08 | 上野製薬株式会社 | ペレット |
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Patent Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
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JPH06340504A (ja) * | 1993-06-01 | 1994-12-13 | Yoshitomi Pharmaceut Ind Ltd | 水中防汚剤 |
JP2018172347A (ja) * | 2017-03-31 | 2018-11-08 | 上野製薬株式会社 | ペレット |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
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EP4120386A1 (en) | 2021-07-14 | 2023-01-18 | Toyota Jidosha Kabushiki Kaisha | Method of producing electrode, and electrode production apparatus |
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