Hektoen enteric agar (HEK, HE or HEA) is a selective and differential agar [1] 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 .

Hektoen enteric agar is a selective as well as differential media for the isolation and differentiation of enteric pathogens from clinical specimens. The presence of the bile salts and dyes inhibits most gram-positive organisms allowing only gram-negative rods to grow on HE agar.

2022年1月4日 · Hektoen Enteric Agar is a selective and differential medium designed to isolate and differentiate members of the species Salmonella and Shigella from other Enterobacteriaceae. The medium was introduced in 1968 by Sylvia King and William I. Metzger.

Hektoen enteric agar is a selective and differential media for the isolation and differentiation of enteric pathogens from clinical specimens. Animal peptones and yeast extract provide the nutritive base (Hektoen enteric agar instructions for use package insert; Remel, Lenexa, KS). The presence of the bile salts and dyes inhibit most gram -positive

Hektoen Enteric (HE) Agar is a moderately selective differential medium used for the isolation and culture of gram-negative enteric microorganisms, particularly for the isolation of Shigella and Salmonella species from fecal (mixed flora) samples.

2023年9月20日 · Hektoen Enteric Agar (HE Agar) is a selective and differential agar medium used to isolate and differentiate enteric pathogens, particularly Salmonella and Shigella. It was developed in 1967 by King and Metzger, and is named after the Hektoen Institute in Chicago, where it was developed.

Hektoen Enteric (HE) Agar was developed by King and Metzger to simultaneously grow Salmonella and Shigella and inhibit normal intestinal flora. 1 The amount of carbohydrate and peptone in the medium was increased to counteract the …

2024年5月16日 · What is Hektoen Enteric Agar? Hektoen Enteric Agar (HE agar) is a selective and differential medium used in clinical microbiology labs to aid in the recovery and identification of Salmonella and Shigella species from clinical specimens, particularly fecal samples.

Remel Hektoen Enteric (HE) Agar w/ Novobiocin is a solid medium recommended for use in qualitative procedures as a selective and differential medium for the isolation of gram-negative enteric pathogens, including Salmonella .

1995年1月1日 · This chapter discusses that Hektoee enteric (HE) agar relies on the use of bile salts for selective inhibition and two indicator systems: (1) bromothymol blue and acid fuchsin as indicators of carbohydrate dissimilation and (2) ferric iron as an indicator of the formation of hydrogen sulfide from thiosulfate.