品牌
经销商厂商性质
上海市所在地
MILLIPORE PVDF转印膜0.2um(ISEQ00010)
面议merck Millipore转印迹膜0.45um Western实验膜*H00010
面议葡聚糖凝Sephadex G-25填料
面议伯乐双染蛋白maker现货161-0374
面议供应葡聚糖凝Sephadex G-25填料
面议批发葡聚糖凝Sephadex G-25填料
面议sigma牛胰岛素Insulin现货供应
面议VECTOR labs*标记的大豆凝集素SBA
面议VECTOR Labs豌豆凝集素PSA
面议AMRESCO蛋白酶抑制剂Aprotinin
面议原装AMRESCO*Glycine 1kg
面议VECTOR代理Streptavidin, Horseradish Peroxidase凝集素
面议胰蛋白胨Oxoid LP0042
蛋白胨是酪蛋白的胰消化。它可用于在任何制定胰腺或*消化酪蛋白中。酪蛋白是牛奶的主要蛋白质是氨基酸态氮的丰富来源
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 |