Detailed knowledge of fetal bovine serum identification - Database & Sql Blog Articles

In recent years, more and more customers have applied imported serum testing, which means that imported products have certain advantages in terms of quality and stability. However, the quality of serum is not well understood. This chapter is a small series on the quality of precipitation of fetal bovine serum to explain the details, welcome to read and read more about fetal bovine serum identification knowledge.
Jinma analyzes many serum customers and finds that the imported serum has a precipitate, which is suspected of the quality of the serum. This is unfounded.
The precipitation in serum is produced by the aggregation of fibrin, which has no effect on the serum quality. There are many reasons for the precipitation, which is closely related to the processing and production methods of the manufacturers.

Domestically produced serum, mostly from the north, due to low prices, the preservation environment is not good, from blood collection, freezing, transportation to production will undergo multiple freeze-thaw cycles, each freeze-thaw process will precipitate part of fibrin precipitation, so serum After the finished product is filtered, it looks more "clean" and there is very little precipitation.

Imported fetal bovine serum is rarely frozen and thawed before filtration. The finished product is also clear, but over time, a large amount of fibrin in the serum will precipitate and form a precipitate. Of course, the imported newborn bovine serum is generally about 2 weeks old, and the various protein contents in the serum are obviously high. After the production, the serum may be cloudy or even precipitated.

Of course, the serum that is purchased is frozen, and needs to be melted when used. The melting process is preferably carried out slowly at a lower temperature, otherwise the precipitation is relatively more, although the precipitation does not directly affect the quality of the serum, but the cells Microscopic observation has certain obstacles.
Shanghai Jinma main push fetal bovine serum: product name number of brand specifications quoted price of fetal bovine serum North America (original) 16000-044Gibco500ml inquiry inquiry fetal bovine serum Australia (original) 10099-141Gibco500ml inquiry inquiry newborn cattle serum (New Zealand) 16010-159Gibco500ml Inquiry for Quote I. Fetal Bovine Serum North America (Original) 16000-044 Description Sera Category: Performance Plus
Origin: United States
Endotoxin level: ≤5 EU/ml
Hemoglobin level: ≤10 mg/dl
Detailed description of common specifications
Age:Fetal
Format:Bottle(s)
Species: Bovine
Product Size: 500 ml
Quality Grade: Certified
Endotoxin Level: ≤ 5 EU/ml
Serum Treatment: Standard (Sterile-Filtered)
Hemoglobin Level: ≤ 10mg⁄dl
Country of Origin:United States

Second, fetal calf serum Australia (original) 10099-141
Description source: Australia.
Endotoxin levels: <= 100 EU/ml (conventional level <= 10 EU/ml).
Hemoglobin level: <= 30 mg/dl (conventional level <= 25 mg/dl).
Detailed description of common specifications
Age:Fetal
Format:Bottle(s)
Species: Bovine
Product Size: 500 ml
Quality Grade: Qualified
Endotoxin Level: ≤ 10 EU/ml
Serum Treatment: Standard (Sterile-Filtered)
Country of Origin:Australia

Third, newborn cattle serum (New Zealand) 16010-159
Description source: New Zealand.
Collected calves from 14 days or less.
Detailed description of common specifications
Age:Newborn (14 days or less)
Format:Bottle(s)
Species: Bovine
Product Size: 500 ml
Serum Treatment: Standard (Sterile-Filtered)
Country of Origin: New Zealand
Tips: Not for clinical treatment.