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產(chǎn)品型號OXOID LP0042
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更新時間:2016-10-05 11:50:21瀏覽次數(shù):738次
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產(chǎn)品說明:
TRYPTONE
Code: LP0042
Tryptone is a pancreatic digest of casein. It can be used in any formulation where a pancreatic or tryptic digest of casein is specified. Casein is the main protein of milk and is a rich source of amino acid nitrogen. The profile shows a broad spread of peaks throughout the molecular weight range characteristic of a pancreatic digest. This hydrolysate is often mentioned in published works, either as a constituent of culture media for metabolic or growth studies, or for other purposes where high performance and uniformity of composition are of paramount importance. It has a high tryptophan content and is therefore used in media for testing the indole reaction.
Tryptone can detect `flat-sour’ or `sulphide’ spoilage organisms in the canning industry and is also used in sterility testing media.
It is a constituent of media used in fermentation processes to produce antibiotics, extra-cellular protein, interferon and diphtheria toxoid.
Typical analysis | (% w/w) |
Total Nitrogen | 13.3 |
Amino Nitrogen | 3.7 |
Sodium chloride | 0.4 |
pH (2% solution) | 7.3 ± 0.2 |
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