Collection: Culture Media & Peptones

It is complete growth medium supplied as a powder that you rehydrate, dispense, and sterilize in the lab. The format cuts cost and storage space and far outlasts prepared plates — Condalab, which manufactures more than 700 dehydrated formulations, states a shelf life of up to five years for its powders.

A selective medium suppresses everything except the group you want to isolate, using agents such as bile salts, antibiotics, or dyes. A differential medium lets mixed flora grow but reveals the target through a color or colony change driven by its metabolism. Classic plates like MacConkey agar combine both principles at once.

Peptones are protein digests of animal or vegetable origin that supply the amino acids and short peptides microorganisms assimilate most easily. Performance depends on the raw material and digestion used — bacteriological peptone, casein or soy digests, and yeast extract each behave differently, which is why media developers screen several. Condalab certifies its bovine-origin peptones BSE/TSE-free.

Chromogenic media embed enzyme substrates that release a distinct color when the target organism's enzymes cleave them, so colonies effectively identify themselves on the plate. That removes subculture and biochemical confirmation steps and shortens reporting time. Condalab produces its chromogenic range under the CondaChrome brand.

Buffered peptone water is the standard non-selective pre-enrichment broth used to resuscitate stressed bacteria before selective detection — most prominently at the start of Salmonella workflows in food testing. Condalab offers it as a dehydrated medium in ISO/BAM-aligned formulations.

Condalab culture media, peptones, and supplements in this category are stocked and supported locally in Israel by Danyel Biotech — send a quote request from the product page or consult our microbiology team on formulations and pack sizes.