Microbiological testing for unknown (salmonella sp.)

To begin my obscure research, I prepared and inoculated, with enigmatical #24, 2 NA slants, 1 NA dental racing shell and boiled and cooled 1 slant of FTM. I then placed the FTM, plate (Quadrant streaked) and unitary of the slants into the incubator, and the other slant into the hood. The slants were inoculated using the glide vaccination technique. after 24 hrs I observe beaded, smooth and raised harvest-home in both slants. On the quad streaked plate I discovered round colonies with raised margins and caterifrom elevations (Fig.1). The egress wrong the FTM slant was determined to be facultative. I labeled incomparable the slants as reserve and placed in the cooler for advance use. At this term, I decided to do a identify of stains from the colony development. First stain that was conducted was the Gram stain, which determined that the unknown was Gram negative with rods (Fig.2). A gram stain of the growth observed in the working slant provided the same info rmation. The second stain performed was a simple stain. This was done to verify the being was, indeed rods. I also observed that there seemed to be a clear capsule around the organism. At this clipping I preformed the capsule stain, which did indeed verify that the organism was encapsulated. During this time, I performed the cultural study with nutrient gel slant. The slant was observed for two weeks.

Growth was seen along the stab line and on top of the medium, but the organism did not liquefy the gel. Furthermore, the line tests were performed: ·         PR Glucose: had residue at bottom of slant, broth saturnine yellow and ·         Lactose: little reside observed in tube no gas in shorthorn ! tube. ·         mannitol: Turned yellow >10% gas seen in shorthorn tube ·         Nitrate broth: Had become hazy no... If you require to squeeze a full essay, order it on our website: OrderEssay.net

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