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Tryptone (vegetable)

suitable for microbiology, meat-free alternative

Synonym(s):

Peptone from vegetable, Tryptone from vegetables, Vegetable hydrolysate

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About This Item

CAS Number:
EC Number:
UNSPSC Code:
41106212
NACRES:
NA.85

biological source

plant

Quality Level

form

powder

shelf life

limited shelf life, expiry date on the label

composition

amino-nitrogen, ≥2.5%
total nitrogen (N), ≥11%

packaging

pkg of 500 g

impurities

≤15% ash

loss

≤7.0% loss on drying

pH

5.5-7.5 (25 °C, 2% in H2O)

solubility

H2O: 2%, clear, yellow

application(s)

food and beverages
vitamins, nutraceuticals, and natural products

microbiology

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General description

Tryptone is a general-purpose growth peptone obtained from vegetable source and meat-free alternative to enzymatic digest from casein. It is used as a nitrogen source in culture media formulated for isolating and cultivating fastidious and non-fastidious bacteria, fungi, and some protozoa. It is a refined hydrolysate with high solubility and is used as a microbiological nutrient in laboratory media and fermentations. It is a high-quality source of amino acids and peptides produced by the pancreatic digestion of casein.

Application

Tryptone is recommended for laboratory media and fermentation and has been used in antibiotics, toxins, and enzyme productions. It is also used as a nutrient in vaccine production where a high free amino acid content is required. Tryptone may also be used in STGG (skim milk, tryptone, glucose, glycerol) medium at -80°C, which is used to preserve Streptococcus pneumoniae, Haemophilus influenzae, and Moraxella catarrhalis isolates for at least 3 years.

wgk_germany

WGK 3

flash_point_f

Not applicable

flash_point_c

Not applicable

ppe

Eyeshields, Gloves, type N95 (US)


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Articles

Culture media provides a habitat with suitable nutrients, energy sources, and certain environmental conditions for the growth of microorganisms. The components of the culture media range from simple sugars to peptones, salts, antibiotics, and complex indicators.

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