Four Seasons Green Newborn Cow Serum 80230-6412/6415

Four Seasons Green Newborn Cow Serum 80230-6412/6415

In virus production, vaccine research and development, and industrial production of biological products, serum is not only the basic nutrient source for cell proliferation, but also a key variable to ensure inter batch yield and product activity. As the core product line of Hangzhou Sijiqing Bioengineering Materials Co., Ltd., Sijiqing newborn bovine serum 80230-6412 and 80230-6415 are collected from healthy newborn calf blood and processed through strict aseptic collection and filtration processes. The two item numbers correspond to standard packaging specifications of 200ml and 500ml respectively, providing supply options that match specifications for different flux scenarios such as amplification of scientific research grade virus strains to large-scale vaccine pilot amplification. The product does not contain bacteriophages and has a low endotoxin content (≤ 10EU/mL). All quality indicators meet the relevant requirements of bovine serum in the current version of the Pharmacopoeia of the People's Republic of China. It is suitable for the production of human and veterinary vaccines and the large-scale cultivation of economically viable adherent and suspended cell lines.

1、 Production process and quality control of two item numbers

The production process of Sijiqing Xinsheng bovine serum 80230-6412/6415 has undergone systematic quality control system polishing. This product is sourced from healthy newborn cattle and undergoes multiple steps such as sterile collection, batch mixing, and microporous filtration. It is continuously transferred and packaged in a clean production area throughout the process, effectively reducing the risk of contamination. The "Sijiqing" brand bovine serum is processed in a local level 100 clean operation that meets industrial aseptic standards, and internal verification is carried out at every stage from collection to final product inspection.

Both products are made from imported newborn calf serum as raw material, and after processing, the effective ingredients in the original serum are retained without adding any exogenous components to the finished product. The physical and chemical indicators, exogenous virus detection results, and cell culture effects are not significantly different from those of domestic newborn calf serum. The main physicochemical parameters are determined by standard projects as follows: pH value (25 ℃) within the range of 7.0-8.5, total protein content (35-50g/L), hemoglobin content (≤ 200g/L), osmotic pressure molar concentration (250-330mOsmol/Kg), endotoxin content controlled at the level of ≤ 10EU/mL. The same batch data can meet the inter batch quality review of pharmacopoeia marketed products in a compliant environment. The external virus detection items for the product include bovine diarrhea virus, bovine adenovirus, bovine parvovirus, reovirus, bovine parainfluenza virus, and rabies virus, and all test results are negative. The 200ml packaging (80230-6412) and the 500ml packaging (80230-6415) have both completed the review of the current version of the Pharmacopoeia of the People's Republic of China, and are mutually verified in terms of GMP compliance.

2、 Key physical and chemical parameters and pharmacopoeia qualification range

The physical and chemical quality control range of Sijiqing newborn bovine serum 80230-6412/6415 is as follows:

Technical indicators: Four Seasons Green Standard and Pharmacopoeia Reference Limit

PH value (25 ℃) 7.0-8.5

Total protein (g/L) 35-50

Hemoglobin (g/L) ≤ 200

Bacterial endotoxin (EU/mL) ≤ 10

Osmole concentration (mOsmol/Kg) 250-330

The endotoxin level is controlled within the limit of ≤ 10EU/mL, which is lower than the prevailing standard in the national pharmacopoeia. The ability to control exogenous toxic substances can be applied to batch amplification of cell matrix in vaccine production. The pH value and osmotic pressure cover the cell proliferation range, and the protein content is sufficient to provide sufficient nutritional support for both adherent and suspended cell proliferation systems.

3、 Key application scenarios: From vaccine virus strain amplification to large-scale production of human vaccines

The positioning of Sijiqing Xinsheng bovine serum 80230-6412/6415 in biological products and conventional scientific research is relatively clear, and its application coverage covers multiple directions such as vaccine production, basic cell line expansion, and large-scale cell culture.

In the production of vaccines for human and animal use, this serum can be used for digestion and passage of substrates such as Vero cells, BHK-21 cells, MDCK cell lines, and chicken embryo fibroblasts, as well as virus strain amplification. Vaccine production requires high inter batch consistency of serum components. If there are fluctuations in the ratio of growth factors to amino acids in the serum, it may directly affect the production of virus titers. 80230-6415 (500ml specification) is more tolerant of supply and logistics management for large volume cultivation, and can reduce conversion and filing operations when changing batches with traceability. This product is suitable for the production of vaccines for human and animal use, as well as for scientific research cell culture.

In the field of basic cell culture, Sijiqing Xinsheng bovine serum 80230-6412/6415 is suitable for the continued preservation and routine maintenance of various adherent, semi adherent, and suspended cells, covering engineering cell lines such as HEK293, as well as early seed expansion of CHO cells in recombinant protein expression systems. Controlling the endotoxin content at a low level of ≤ 10EU/mL can reduce the stress inhibition of sensitive cells by endotoxins, which helps to ensure the stability of cell state and the accuracy of subsequent experimental results. Stable and high-quality serum supply is also one of the key cornerstones for controlling complex variables in the production process of large-scale vaccine research and quality inspection.

Specification system: Connection of dosage from 200ml to 500ml

Four season green newborn bovine serum 80230-6412 and 80230-6415 are commonly paired in cell culture promotion, enabling production cost management and inter batch traceability work to be constructed according to actual culture volumes.

4、 Applicable scenarios for item number specifications

80230-6412200ml/bottle small system for virus seeding, cell passaging optimization, and trial production validation

80230-64155000ml/bottle Large scale cultivation of human and veterinary vaccines, CHO large jar seed amplification

Users can purchase packaging materials in batches based on specific cell production levels, matching the frequency of use during upstream virus screening and central control stages. The dual specification system reduces the risk of re freezing in single item packaging and shortens the raw material stocking cycle required for single batch matching.

5、 Supply capacity and price reference

Four Seasons Green Newborn Cow Serum 80230-6412/6415The origin of the product is blended with imported newborn calf raw materials, forming a full chain supply system of research and development, quality inspection, and terminal to distributor. The traceability of individual product packaging is clear, and the stability between batches is suitable for long-term filing.

In summary, Sijiqing newborn bovine serum 80230-6412 and 80230-6415 rely on imported grade newborn bovine serum raw materials and undergo standardized processes such as batch mixing and 3 times of microporous filtration. The measured physical and chemical indicators, such as pH 7.0-8.5, total protein 35-50g/L, and endotoxin ≤ 10EU/mL, match the quality requirements of bovine serum applicable to the production of biological products in the current version of the Chinese Pharmacopoeia. The two packaging options are 200ml and 500ml respectively, which are combined with different levels of cell culture steps in the production of human and veterinary vaccines. They also play a stable supporting role in the proliferation and expansion of conventional scientific research adherent or suspended cells. Selecting appropriate specifications based on your cell line sensitivity, number of cultivation batches, and future pilot production yield, and following standardized storage procedures such as environmentally friendly packaging and gradient thawing after receipt, will help effectively maintain the growth vitality and inter batch consistency of the cell matrix in vaccine development and large-scale cell production.