WebJan 6, 2024 · Salmonella Shigella (SS) Agar is highly selective for Salmonella species but is inhibitory to some strains of Shigella. It was developed to aid in the differentiation of lactose and non-lactose … WebHe makes selective and differential agar that is specific for fecal coliforms. He inoculates the surface of the agar in a Petri dish for each of these 3 samples. He places 1 gram of sediment on the Lake Pontchartrain plate, 750 milligrams of sediment onto the University Lake plate, and 6.25 g of sediment onto the Lake Martin plate. ...
Lab Report 53 54 55.docx - Lillian Bushman Microbiology Lab...
WebBlood agar is one type of differential medium, allowing bacteria to be distinguished by the type of hemolysis produced. Some differential media are also selective, for example, … WebJan 6, 2024 · Blood agar is differential. It contains red blood cells (commonly 5% sheep blood) and indicates whether hemolysis has occurred in a culture media containing … fax and scanning services
Hektoen Enteric Agar (HEA) Flashcards Quizlet
WebHektoen Enteric Agar (HEK) Hektoen enteric agar is a selective and differential medium used for the isolation and differentiation of Salmonella and Shigella from other Gram-negative enterics. This medium contains the pH indicators Bromthymol blue and acid fuchsin. The presence of bile salts and WebJun 16, 2024 · Mannitol-salt agar (MSA): Differential and selective growth medium. This medium contains 7.5% NaCl, the carbohydrate mannitol and the pH indicator phenol red (yellow at pH 8.4). It is selective for staphylococci due to the high concentration of NaCl, and differentiates based on the ability to ferment mannitol. Hektoen enteric agar (HEK, HE or HEA) is a selective and differential agar primarily used to recover Salmonella and Shigella from patient specimens. HEA contains indicators of lactose fermentation and hydrogen sulfide production; as well as inhibitors to prevent the growth of Gram-positive bacteria. It is named after the Hektoen Institute in Chicago, where researchers developed the agar. friendly types of spiders