推薦：ReadyPlate™ Chromocult® Coliform Agar

屬性
Agency
ISO 9308

質(zhì)量水平
300

形式
plate (ready-to-use)

特點(diǎn)
ready-to-use

包裝
box of 20 plates

manufacturer/tradename
ReadyPlate™

直徑
90 mm

application(s)
food ａnd beverages
microbiology
water monitoring

儲(chǔ)存溫度
15-25°C

適用性
Escherichia coli
coliforms

說(shuō)明
一般描述
ReadyPlate™ agar plates are stackable specially designed plates that helps increase the safety during handling, transport ａnd incubation. ReadyPlate™ agar plates are of standard 90mm diameter. Chromocult® Coliform Agar (CCA) is a selective ａnd differential chromogenic culture medium. It is a standard medium in water testing for simultaneous detection ａnd enumeration of coliform ａnd E.coli. It is also the base medium recommended for testing drinking water as per ISO 9309-1:2014
應(yīng)用
Chromocult® Coliform Agar is used for the enumeration of Escherichia coli ａnd coliform bacteria in food ａnd drinking water, disinfected pool water ａnd finished water from treatment plants
分析說(shuō)明
The interaction of selected peptones, pyruvate, sorbitol ａnd phosphate buffer promotes rapid colony growth, even for sub-lethally injured coliform bacteria. The growth of Gram-positive bacteria as well as certain Gram-negative bacteria is inhibited by the presence of Tergitol™ 7 which has no negative effect on the growth of coliform bacteria. Further, the combination of two chromogenic substrates permits the simultaneous detection of coliform bacteria ａnd E. coli.
Coliform bacteria detection: The substrate Salmon-GAL is used for the detection of β-D-galactosidase activity, which is characteristic for coliform bacteria. This interaction results in a pink to red color of the coliform colonies.
E. coli detection: The substrate X-glucuronide is used for the detection of β-D-glucuronidase activity. E. coli cleaves both Salmon-GAL ａnd X-glucuronide, so that positive colonies take on a dark-blue to violet color. These are easily distinguished from other coliform colonies, which have a pink to red color. Some E. coli (3-4%) are ß-D-glucuronidase-negative ａnd appear as pink to red colonies.
Accompanying flora appears as colorless colonies, except for some organisms, which possess β-D glucuronidase activity. These colonies appear light blue to turquoise in color.

IF<5，贈(zèng)送價(jià)值 500元禮品卡
5 ≤IF≤10，贈(zèng)送價(jià)值 1000元禮品卡
IF≥10，贈(zèng)送價(jià)值 1000元禮品卡+任意 1 款 ValukineTM 試劑盒


DUMABIO ELISA試劑盒文獻(xiàn)征集獎(jiǎng)勵(lì)活動(dòng)

為感謝各位老師對(duì)篤瑪品牌的支持與厚愛(ài)，凡購(gòu)買(mǎi)DUMABIO ELISA試劑盒，在SCI期刊雜志發(fā)表文中注明ELISA試劑盒采購(gòu)上海篤瑪生物科技有限公司（Shanghai DuMa Biotechnology Co., Ltd.）

Shanghai DuMa Biotechnology Co., Ltd. 

發(fā)表刊物        影響因子           獎(jiǎng)勵(lì)金額
SCI期刊雜志      1.0≤1F＜3.0          200元
SCI期刊雜志      3.0≤1F＜6.0          400元
SCI期刊雜志      6.0≤1F＜10.0         600元
SCI期刊雜志      1F≥10                1000元