JP5118336B2 - 腸球菌検出用培地 - Google Patents
腸球菌検出用培地 Download PDFInfo
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- JP5118336B2 JP5118336B2 JP2006320598A JP2006320598A JP5118336B2 JP 5118336 B2 JP5118336 B2 JP 5118336B2 JP 2006320598 A JP2006320598 A JP 2006320598A JP 2006320598 A JP2006320598 A JP 2006320598A JP 5118336 B2 JP5118336 B2 JP 5118336B2
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- JP
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- Prior art keywords
- medium
- enterococci
- indoxyl
- glucopyranoside
- present
- Prior art date
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Description
新 細菌培地学講座−下II−<第二版>株式会社 近代出版 監修 坂崎利一 著者 田村一満・吉崎悦郎・三木寛二 1990年1月20日発行 毒物及び劇物取締法 別表第1第28号 最終改正:平成18年4月21日政令第176号
さらに本発明は、上記培地にさらにグリコペプチド系抗生物質を含有する薬剤耐性腸球菌検出用培地及び当該培地を用いた。薬剤耐性腸球菌の検出方法を提供するものである。
(1)培地の作製
ペプトン10g、酵母エキス5g、塩化ナトリウム5g、リン酸水素二カリウム4g、リン酸二水素カリウム1.5g、クエン酸鉄アンモニウム0.5g、アジ化ナトリウム0.045g、5−ブロモ−4−クロロ−3−インドキシル−β−D−グルコピラノシド0.3g、寒天15gを1リットルの精製水に加え20%炭酸ナトリウム水溶液にてpHを8.0に合わせた後、100℃、20分間加温溶解する。溶解後培地が冷めたことを確認し、ろ過滅菌したゲンタマイシン硫酸塩を0.0009g/Lになるように加え良く撹拌した後、プラスチックシャーレ(90φmm)に20mLずつ分注して培地が固まるまで静置し、本発明の腸球菌用培地を作製した。
供試菌株はトリプトソイブイヨン(ビブリオ属は3%食塩加トリプトソイブイヨン)で24時間前培養したものを用い、これを生理食塩水で希釈し本発明の腸球菌用培地に接種した。
本発明培地組成をメッシュを有する繊維状吸水シートに担持させた構造(特開2000−325072)を利用した簡易培地に適用した場合のコロニーの性状及び発育菌数を測定した。
本発明培地組成をメッシュを有する繊維状吸水シートに担持させた構造(特開2000−325072)を利用した簡易培地に適用した場合のコロニーの性状を測定した。
本発明培地組成をメッシュを有する繊維状吸水シートに担持させた構造(特開2000−325072)を利用した簡易培地に適用し、バンコマイシン添加の有無を比較した。
Claims (6)
- アジ化ナトリウムを0.001〜0.099重量%(使用時の濃度は、0.045g/L)、硫酸ゲンタマイシンを使用時の濃度として0.01〜10mg/L、並びに、5−ブロモ−4−クロロ−3−インドキシル−β−D−グルコピラノシド、5−ブロモ−6−クロロ−3−インドキシル−β−D−グルコピラノシド及び3−インドキシル−β−D−グルコピラノシドからなる群から選ばれるβ−グルコシダーゼの基質となる色原体化合物の少なくとも1種を含有する腸球菌検出用乾燥培地(クリスタルバイオレットを0.1〜1.5mg/L含有する培地を除く。)。
- さらに、グリコペプチド系抗生物質を含有し、薬剤耐性腸球菌検出用である請求項1記載の腸球菌検出用乾燥培地。
- グリコペプチド系抗生物質が、バンコマイシンである請求項2記載の腸球菌検出用乾燥培地。
- アジ化ナトリウムを0.001〜0.099重量%(使用時の濃度は、0.045g/L)、硫酸ゲンタマイシンを使用時の濃度として0.01〜10mg/L、並びに、5−ブロモ−4−クロロ−3−インドキシル−β−D−グルコピラノシド、5−ブロモ−6−クロロ−3−インドキシル−β−D−グルコピラノシド及び3−インドキシル−β−D−グルコピラノシドからなる群から選ばれるβ−グルコシダーゼの基質となる色原体化合物の少なくとも1種を含有する乾燥培地(クリスタルバイオレットを0.1〜1.5mg/L含有する培地を除く。)に被検試料を接種して培養することを特徴とする腸球菌の検出方法。
- 乾燥培地がさらにグリコペプチド系抗生物質を含有するものであり、検出対象が薬剤耐性腸球菌である請求項4記載の検出方法。
- グリコペプチド系抗生物質が、バンコマイシンである請求項5記載の検出方法。
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