微生物高效培养的黄金氮源——优质胰蛋白胨
2025-03-17 · 推荐产品 · 百灵威授权转载
在微生物培养领域，氮源的选择直接决定细菌活性与产物效率。Oxoid胰蛋白胨采用优质蛋白原料经胰酶深度酶解工艺精制而成，为细菌、支原体及高要求工程菌提供均衡营养，助力其快速增殖与高效代谢，是实验室研究与工业发酵的理想选择。
产品优势
- 高消化率蛋白源：经胰酶科学水解，释放更易吸收的短肽链及游离氨基酸，显著提升微生物利用率。
- 营养全面均衡：含18种必需氨基酸、B族维生素、微量元素及核苷酸，满足苛刻菌株的营养需求。
- 快速溶解无残留：粉末超细处理，水溶性极佳，避免培养基浑浊或沉淀干扰实验结果。
Specification
| Physical Characteristics | Specification |
|---|---|
| Appearance | Straw powder |
| Absorbance @ 450nm | 0.000 - 0.066 |
| pH (25°C) | 7.1 - 7.5 |
| Clarity | Clear |
| Loss on drying (%) | 0.0 - 6.5 |
| Ash (%) | 0.0 - 15.0 |
| Formol nitrogen (%) | 3.4 - 4.0 |
| Total nitrogen (%) | >10.0 |
| Total viable count <10,000 cfu/g | Conforms to specification |
| Spore count<1,000 spores/g | Conforms to specification |
| Microbiological Performance | Control cfu | Test cfu | Recovery % | Test Description |
|---|---|---|---|---|
| A 2%w/v solution tested with the addition of 0.5% w/v sodium chloride and 1.2% w/v bacteriological agar | ||||
| Aerobic incubation at 37°C for 24 hours | ||||
| Escherichia coli ATCC@25922 | 35 | 40 | 114 | Straw cols |
| Enterobacter aerogenes ATCC@13048 | 29 | 28 | 97 | Straw cols |
| Salmonella typhimurium ATCC@14028 | 56 | 56 | 100 | Straw cols |
| Pseudomonas aeruginosa ATCC@9027 | 80 | 80 | 100 | Straw cols |
| Staphylococcus aureus ATCC@6538 | 26 | 25 | 96 | Cream cols |
| Enriched with 5% v/v sheep blood | ||||
| Aerobic incubation ate 37°C for 48 hours | ||||
| Streptococcus pneumoniae ATCC@6303 | 45 | 38 | 84 | Grey/green,mucoid cols,alpha haem |
| Streptococcus pyogenes ATCC@19615 | 58 | 58 | 100 | White cols,beta haem |
| Streptococcus agalactiae ATCC@12386 | 57 | 44 | 77 | White cols,beta haem |
| Enriched with 10% v/v horse blood (chocolated) | ||||
| Aerobic incubation in 10% CO2 at 37°C for 48 hours | ||||
| Neisseria gonorrhoeae ATCC@19424 | 61 | 51 | 84 | Grey/brown cols |
产品列表
| 品名 | CAS | 货号 |
|---|---|---|
| TRYPTONE，Only available in the North 胰蛋白胨，仅售北方区域 | / | LP0042B |
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