型號: | LP0042 |
---|---|
品牌: | Oxoid |
原產地: | 英國 |
類別: | 化工 / 化學試劑 |
標籤︰ | 胰蛋白胨 , lp004 |
單價: |
¥360
/ 瓶
|
最少訂量: | 1 瓶 |
即時通訊: | 最後上線︰2014/09/15 |
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 |