1A soluble protein formed in the early stage of protein breakdown during digestion.
- ‘Supplementation of cultures with the rich nutrient peptone has been previously shown to suppress submerged culture conidiation.’
- ‘Yeast extract / peptone / dextrose, synthetic selective media, and minimal media were prepared as described.’
- ‘They are professional colleagues, too, and have published a paper together about immunity from the anticoagulant action of peptone.’
- 1.1A solution of peptone in saline, used as a liquid medium for growing bacteria.
- ‘Bactosoytone, the medium that is used to cultivate bacteria in the process of making monosodium glutamate, is one of the peptones.’
- ‘Yeast strains were grown in yeast extract / peptone / dextrose with 2% glucose or in synthetic defined minimal media supplemented with appropriate amino acids and 2% glucose.’
- ‘Standard yeast media and cultivation were employed and yeast were grown on yeast extract / peptone / dextrose media at 30° unless indicated otherwise.’
- ‘Briefly, S. Typhimurium was grown on nutrient agar and passed into peptone water before subculturing on Congo red agar.’
- ‘I will need some lactose broth and the modified peptone water so I can test for all possibilities.’
Mid 19th century: from German Pepton, from Greek pepton, neuter of peptos cooked, digested.