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产品介绍
以纯化培养的primary yeast 为原料,采取特殊的提取和制备工艺,最大限度富集和保留了primary yeast 中的营养因子,是一款无动物来源的培养基补充物。
性状描述
浅黄色粉末,易溶于水,较易吸潮;
营养组成
富含游离氨基酸(尤其是谷氨酸及丙氨酸)、多肽(尤其是小分子肽含量丰富)、 B 族维生素、核酸、核苷酸、等营养因子
应用
作为难培养及营养缺陷型或严苛型微生物培养的高效有机营养源,例如,用于支原体,流感和副流感嗜血杆菌的快速鉴别培养,配制白喉杆菌,破伤风抗原培养基等。在细胞培养应用领域作为无血清细胞培养基的营养添加物或补充剂。
产品使用方法
本产品开封后可直接按比例添加或配制成一定浓度溶液,过滤除菌后按比例添加使用。未用完产品立即封存保藏。推荐用量:动物类支原体培养0.5%-1.5%(w/v);禽类支原体培养1%-2.5%(w/v)。
理化特性
检测项目 | 指标 |
溶解度(%,常温) | 30%,澄清透亮 |
pH(2%溶液) | 5.5-7.0 |
水分(%) | 4-6 |
总氮(以干基计,%) | >9.0 |
氨基氮(以干基计,%) | >4.5 |
灰分(%) | ≤15 ≤2 |
内毒素(EU/g) | ≤200 |
微生物指标
检测项目 | 指标 |
菌落总数(cfu/g) | ≤10000 |
大肠菌群(MPN/g) 酵母菌(cfu/g) 霉菌(cfu/g) 沙门氏菌/25g | ≤0.3 ≤10.0 ≤10.0 不得检出 不得检出 |
金黄色葡萄球菌, /25g | 不得检出 |
维生素及核苷酸
检测项目 | 指标 |
B1(ppm) 生物素(ug/100g) CMP (%) UMP (%) GMP (%) | 3.8 630 0.17 0.15 0.05 |
AMP (%) | 0.22 |
ps :以上指标仅供参考, 具体数值以每批实测为准
分子量分布
|
>2000 |
2000-1000 |
1000-400 |
400-180 |
<180 |
|
0 |
0.68 |
12.18 |
64.232 |
22.91 |
氨基酸
|
|
游离 |
水解 | |||
|
天门冬氨酸(ASP) 苏氨酸(Thr) |
0.47 |
3.48 1.38 |
|
|
|
|
丝氨酸(Ser) |
0.75 |
1.37 | |||
|
谷氨酸(Glu) |
7.56 |
15.60 | |||
|
甘氨酸(Gly) |
0.27 |
1.51 | |||
|
丙胺酸(Ala) |
9.76 |
10.00 | |||
|
胱氨酸(Cys-cys) |
0.76 |
0.99 | |||
|
缬氨酸(Val) |
1.65 |
2.32 | |||
|
蛋氨酸(Met) |
0.13 |
0.36 | |||
|
异亮氨酸(Ile) |
0.50 |
1.02 |
|
亮氨酸(Leu) |
0.75 |
1.45 |
|
酪氨酸(Tyr) |
0.41 |
0.77 |
|
苯丙氨酸(Phe) |
0.70 |
1.25 |
|
赖氨酸(Lys) |
0.55 |
1.78 |
|
无机氨(NH3) |
0.64 |
1.55 |
|
组胺酸(His) |
0.22 |
0.54 |
|
精氨酸(Arg) |
1.29 |
1.78 |
|
脯氨酸(Pro) |
0.38 |
0.77 |
|
总和 |
27.76 |
47.92 |
Product Introduction
Purified and cultured primary yeast is used as raw material, and special extraction and preparation processes are adopted to maximize the enrichment and retention of nutritional factors in the primary yeast. It is a medium supplement without animal sources.
Description
Light yellow powder, soluble in water, easy to absorb moisture;
Components
Rich in free amino acids (especially glutamic acid and alanine), peptides (especially rich in small peptides), B vitamins, nucleic acids, nucleotides, and other nutritional factors
Application
As a high-efficiency organic nutrient source for the cultivation of difficult-to-cultivation and auxotrophic or severe microorganisms, for example, for the rapid identification and cultivation of mycoplasma, influenza and Haemophilus parainfluenzae, preparation of diphtheria, tetanus antigen culture medium, etc. It is used as a nutrient supplement or supplement for serum-free cell culture medium in cell culture applications.
Directions
After opening the product, it can be directly added in proportion or formulated into a certain concentration solution, and added in proportion to use after filtration and sterilization. The unused products shall be sealed and preserved immediately. Recommended dosage: 0.5%-1.5% (w/v) for animal mycoplasma culture; 1%-2.5% (w/v) for avian mycoplasma culture.
Physical-chemical characteristics
Test items | index |
Solubility (%, normal temperature) | 30%, clear and translucent |
pH (2% solution) | 5.5-7.0 |
Moisture (%) | 4-6 |
Total nitrogen (on dry basis, %) | >9.0 |
Amino nitrogen (on a dry basis, %) | >4.5 |
Ash content (%) | ≤15 ≤2 |
Endotoxin (EU/g) | ≤200 |
Microbiology
Test items | index |
Total number of colonies (cfu/g) | ≤10000 |
Coliform group (MPN/g) Yeast (cfu/g) Mold (cfu/g) Salmonella/25g | ≤0.3 ≤10.0 ≤10.0 Not check out Not check out |
Staphylococcus aureus, /25g | Not check out |
Average vitamin nucleotide composition
Test items | index |
B1(ppm) Biotin (ug/100g) CMP (%) UMP (%) GMP (%) | 3.8 630 0.17 0.15 0.05 |
AMP (%) | 0.22 |
ps :The above indicators are for reference only, the specific values are subject to the actual measurement of each batch
molecular weight distribution
>2000 |
2000-1000 |
1000-400 |
400-180 |
<180 |
0 |
0.68 |
12.18 |
64.232 |
22.91 |
Amino acid composition
| free | hydrolysis | |||
ASP Thr | 0.47 | 3.48 1.38 | |||
Ser | 0.75 | 1.37 | |||
Glu | 7.56 | 15.60 | |||
Gly | 0.27 | 1.51 | |||
Ala | 9.76 | 10.00 | |||
Cys-cys | 0.76 | 0.99 | |||
Val | 1.65 | 2.32 | |||
Met | 0.13 | 0.36 | |||
Ile | 0.50 | 1.02 |
Leu | 0.75 | 1.45 |
Tyr | 0.41 | 0.77 |
Phe | 0.70 | 1.25 |
Lys | 0.55 | 1.78 |
NH3 | 0.64 | 1.55 |
His | 0.22 | 0.54 |
Arg | 1.29 | 1.78 |
Pro | 0.38 | 0.77 |
sum | 27.76 | 47.92 |
分类树(Taxonomy Tree)
| 界(kingdom) | 有机化合物 |
|---|---|
| 超类(Superclass) | 苯类化合物 |
| 类(Class) | 芴 |
| 亚类(Subclass) | 暂无 |
| 中间层级节点(Intermediate Tree Nodes) | 暂无 |
| 直接上位类(Direct Parent) | 芴 |
| 其他上位类(Alternative Parents) | 萘 一元羧酸及其衍生物 羧酸 有机氧化物 碳氢化合物衍生物 羰基化合物 |
| 分子骨架(Molecular Framework) | 芳香族同多环化合物 |
| 取代基(Substituents) | 芳香族同多环化合物 - 羰基 - 羧酰胺基 - 羧酸衍生物 - 芴 - 烃衍生物 - 单羧酸或其衍生物 - 萘 - 有机氧化物 - 有机氧化合物 - 有机氧化合物 |
| 描述(Description) | 该化合物属于芴类有机化合物。这类化合物含有芴基结构单元,该单元由两个苯环通过环戊烷、环戊烯或环戊-1,3-二烯连接而成。 |
| 外部描述符(External Descriptors) | 暂无 |