产品名称 Staphylococcus Selective Agar (Powder) from UNITED STATES BIOLOGICAL
产品货号 S7965-30
产品价格 现货询价,电话:010-67529703
产品规格 500g
产品品牌 UNITED STATES BIOLOGICAL
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Product NameStaphylococcus Selective Agar (Powder)
DescriptionSelective medium for Staphylococcus recovery from food products and clinical material. Mode of Action: This medium contains lithium chloride and tellurite to inhibit the growth of accompanying microbial flora, whereas pyruvate and glycine selectively stimulate the growth of staphylococci. Staphylococcus colonies show two characteristic features when grown in this opaque medium (opaque, because of its egg-yolk content) a) characteristic zones and rings are formed as a result of lipolysis and proteolysis, b) reduction of tellurite to tellurium produces a black coloration. The egg-yolk reaction and tellurite reduction are usually found to occur together with a positive coagulase reaction and can thus serve as an index for the latter. Stadhouders et al. (1976) recommend that egg-yolk should be replaced with blood plasma, if coagulase-positive staphylococci are to be detected directly. Smith and Baird-Parker (1964) recommend the addition of sulfamethazine to suppress the growth and swarming
Size500g
Concentrationn/a
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Catalog #S7965-30
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Order / More InfoStaphylococcus Selective Agar (Powder) from UNITED STATES BIOLOGICAL
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