JP5013583B2 - 染色特性の低下された殺菌組成物及び染色特性の低下方法 - Google Patents
染色特性の低下された殺菌組成物及び染色特性の低下方法 Download PDFInfo
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- XAEFZNCEHLXOMS-UHFFFAOYSA-M potassium benzoate Chemical compound [K+].[O-]C(=O)C1=CC=CC=C1 XAEFZNCEHLXOMS-UHFFFAOYSA-M 0.000 description 1
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Landscapes
- Agricultural Chemicals And Associated Chemicals (AREA)
Description
(1)OPAと、グリオキシル酸(以下、GOAという)、その塩及びメチルグリオキサール(以下、MGAという)から選ばれるアルデヒド系化合物とを、OPA1質量部に対し該アルデヒド系化合物0.1〜20質量部を含有することを特徴とするOPAの染色特性を低減させた殺菌組成物、及び(2)OPAに、GOA、その塩及びMGAから選ばれるアルデヒド系化合物を、OPA1質量部に対し該アルデヒド系化合物0.1〜20質量部を添加することを特徴とするOPAの染色特性の低下方法を提供するものである。
本発明の殺菌組成物は、OPAと該アルデヒド系化合物の少なくとも1種を含有してなる。OPAは、o−フタルアルデヒドともいわれ、相当するテトラハロゲン化キシレンを加水分解する方法等で製造できるが、既に、市販されており容易に入手できる。また、GOAや2−オキソプロパナール、ピルビンアルデヒドとも称されるMGAも市販されており、GOA水和物又は40〜50%水溶液やMGA40%水溶液を使用することができる。GOAの塩は、GOAをアルカリ金属、アルカリ土類金属の水酸化物や炭酸塩で中和することによって得られる。
OPA(5部)、GOA又はMGA(2.5部)、N,N−ジメチルアセトアミド(30部)、及び蒸留水(62.5部)を混合撹拌して液剤を得る。
製剤例2
OPA(5部)、GOA又はMGA(5部)、N,N−ジメチルアセトアミド(30部)、及び蒸留水(60部)を混合撹拌して液剤を得る。
製剤例3
OPA(5部)、GOA(5部)、N,N−ジメチルアセトアミド(30部)、ポリオキシエチレン多環フェニルエーテル(0.5部)及び蒸留水(59.5部)を混合撹拌して液剤を得る。
製剤例4
OPA(5部)、GOA又はMGA(25部)、N,N−ジメチルアセトアミド(30部)、及び蒸留水(40部)を混合撹拌して液剤を得る。
製剤例5
OPA(0.5部)、GOA又はMGA(5部)、N,N−ジメチルアセトアミド(3部)、及び蒸留水(91.5部)を混合撹拌して液剤を得る。
製剤例6
40%GOA(6.25部)に10%水酸化ナトリウム水溶液(14.8部)を加えて中和し、GOAナトリウム塩を調製し、OPA(0.5部)を蒸留水(78.45部)に溶解したものと混合撹拌して液剤を得る。この製剤のpHは10.3であった。
製剤例7
OPA(0.5部)と40%GOA(6.25部)を混合し、蒸留水(50部)に溶解させた後、10%水酸化ナトリウム水溶液加えpHを7.6(25℃)に調整し、リン酸緩衝液(M/30リン酸水素二カリウム、M/30リン酸二水素カリウムを混合しpH7.6に調整したもの)を加えて液剤(100部)を得る。
OPA(5部)、N,N−ジメチルアセトアミド(30部)、蒸留水(65部)を混合撹拌して液剤を得る。
比較例2
OPA(0.55部)を蒸留水(50部)に溶解させ、リン酸緩衝液(M/30リン酸水素二カリウム、M/30リン酸二水素カリウム混合しpH7.6に調整したもの)を加えて液剤(100部)を得る。
比較例3
GOA又はMGA(25部)を蒸留水(75部)に溶解して液剤を得る。
製剤例に従って調製された各薬剤を蒸留水で希釈してOPA0.05%含有溶液とし、鶏肉の笹身を水洗した後、1cm間隔に切り分けて該溶液に浸漬した。室温に24時間放置後、肉表面の着色を観察した。これらの結果を表1に示す。なお、IPAは、製剤例2及び製剤例4のGOAをIPAに換えたものである。
鶏肉の笹身を水洗し切り分けて、OPA0.55%を含有する製剤例又は比較例の各溶液中に5分間浸漬し、肉表面の着色を観察した。結果を表2に示す。
ハイドロサルファイトナトリウム(以下、HSNという)を含有するpH7のリン酸−クエン酸緩衝液に、ブイヨン培地で前培養したエンテロバクター・エロゲネス(Enterobacter aerogenes)菌を約107CFU/mlになるように加え、L字管に投入した。これに所定量の薬液を加え、30℃で90分の振とう培養を行った。培養終了後、生菌数測定を容易にするため、培養液を滅菌蒸留水で100倍又は10000倍に希釈し、普通寒天培地に接種した。30℃で72時間培養した後、生菌数(CFU/ml)を測定し、緩衝液1ml当りの生菌数を求めた。結果を表3に示す。
某製紙工場より採取した白水10mlを三角フラスコに採り、薬剤をこの白水に対してOPAとして5ppmになるように添加して、30℃、振とう培養した後、生菌数を測定した。結果を表4に示す。
Claims (2)
- オルトフタルアルデヒドと、グリオキシル酸、その塩及びメチルグリオキサールから選ばれるアルデヒド系化合物とを、オルトフタルアルデヒド1質量部に対し該アルデヒド系化合物0.1〜20質量部を含有することを特徴とするオルトフタルアルデヒドの染色特性を低減させた殺菌組成物。
- オルトフタルアルデヒドに、グリオキシル酸、その塩及びメチルグリオキサールから選ばれるアルデヒド系化合物を、オルトフタルアルデヒド1質量部に対し該アルデヒド系化合物0.1〜20質量部を添加することを特徴とするオルトフタルアルデヒドの染色特性の低下方法。
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