Heat inactivation is required based on the specific application or protocol. It is typically necessary for hybridoma cultures or immunological studies that require the inactivation of complement proteins. However, heat inactivation is not required for all applications.
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About This Item
biological source
bovine fetus
Quality Level
sterility
sterile-filtered
product line
FBS Classic
composition
Bovine IgG, ≤1 mg/mL , Hemoglobin, ≤20 mg/dL
origin
USA origin
technique(s)
cell culture | hybridoma: suitable, cell culture | mammalian: suitable
impurities
≤10 EU/mL endotoxin
shipped in
dry ice
storage temp.
−20°C
General description
Application
Biochem/physiol Actions
Analysis Note
- Endotoxin and hemoglobin tested
- Tested for the presence of bacteria, virus, and mycoplasma
- Triple filtered with 0.1 micron membrane under aseptic conditions
Other Notes
1 of 1
This Item | |||
|---|---|---|---|
| sterility sterile-filtered | sterility - | sterility sterile-filtered | sterility γ-irradiated, sterile-filtered |
| origin USA origin | origin USA origin | origin USA origin | origin non-USA origin |
| biological source bovine fetus | biological source bovine fetus | biological source bovine fetus | biological source bovine fetus |
| technique(s) cell culture | hybridoma: suitable, cell culture | mammalian: suitable | technique(s) cell culture | mammalian: suitable | technique(s) cell culture | hybridoma: suitable, cell culture | insect: suitable, cell culture | mammalian: suitable | technique(s) cell culture | mammalian: suitable |
| impurities ≤10 EU/mL endotoxin | impurities ≤10 EU/mL endotoxin | impurities ≤10 EU/mL endotoxin | impurities ≤10 EU/mL endotoxin |
| composition Bovine IgG, ≤1 mg/mL , Hemoglobin, ≤20 mg/dL | composition hemoglobin, ≤20 mg/dL | composition Bovine IgG, ≤1 mg/mL , Hemoglobin, ≤20 mg/dL | composition hemoglobin, ≤25 mg/dL |
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Storage Class
10 - Combustible liquids
flash_point_f
Not applicable
flash_point_c
Not applicable
ppe
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Protocols
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Global Trade Item Number
| SKU | GTIN |
|---|---|
| F2442-100ML | 04061838338709 |
| F2442-1L | 04061837034589 |
| F2442-50ML | 04061838255396 |
| F2442-24X500ML | 04061838255372 |
| F2442-500ML | 04061838255389 |
| F2442-6X500ML | 04061838255402 |
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is heat inactivation necessary?
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How to heat inactivate this serum Fetal Bovine Serum USA origin,(Cat Log - F2442)
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Heat inactivation occurs when serum is heated to 56°C for a period of 30 minutes.
Here's a protocol for heat inactivation:
1. Allow serum containers to come to room temperature. Swirl bottles of serum immediately before adding to the water bath.
2. A water-filled control bottles (T1) should be placed in a 56 °C water bath. Place the containers in the water bath up to the serum line. Do not completely submerge the containers. When the temperature of T1 reaches 56 °C, start the timer set for 30 minutes. Do not allow temperatures to exceed 56 °C. Higher temperatures will denature the proteins, gel the serum or alter the performance of the serum.
3. Gently swirl the bottles every 5 to 10 minutes while in the water bath and check the temperature in the control bottle. It is not uncommon for plastic containers to bow slightly after heat treatment. This is not harmful to the serum.
4. At the end of 30 minutes remove the serum bottles from the water bath. Aliquot the serum into smaller volumes and freeze. Sigma-Aldrich does not recommend repeated thaw-freeze cycles.Helpful?
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is this Heat Inactivate FBS?
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This product has not been heat inactivated.
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can F2442 FBS be used for culturing peritoneal macrophages? what is the suitable one?
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This product is tested for suitability in mammalian cell culture. While it is not specifically tested on macrophages, it is subject to stringent specifications, including low endotoxin, and should perform well. Please see the link below to review a sample Certificate of Analysis:
https://www.sigmaaldrich.com/coa/SIGMA/F2442/23A317Helpful?
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Can this f2442 fbs be used for culture expansion of mesenchymal stem cells? Please confirm Thanks
1 answer-
Fetal Bovine Serum (Cat. no.: F2442) is suitable for use in mammalian cell culture. However, it is not tested specifically in mesenchymal stem cell culture. There is some evidence in the literature that this product would be suitable. See the link below for a relevant reference:
https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4545441/Helpful?
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What is the difference between Fetal Bovine Serum F2442 and 12103C?
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Product No. 12103C meets most of the specifications of F2442. Both products are from the same raw material suppliers and undergo the same stringent testing prior to release. However, the F2442 has been use-tested in hybridoma culture, whereas 12103C has not.
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Once a bottle of Fetal Bovine Serum (FBS) is thawed, for how long can the bottle be used?
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Once Fetal Bovine Serum has been thawed, the bottle can be used in cell culture for up to 7 days for most cell types when stored refrigerated at 2-8°C. If the cells are not fastidous (e.g. HeLa or fibroblasts), the thawed and refrigerated serum can be used for up to 30 days. For some extremely fastidious cell lines, it may be necessary to screen individual lots for acceptable performance. For uses such as blocking for various immuno procedures, usage will generally be for 30 days and perhaps somewhat longer when stored at 2-8°C. For other procedures, usage beyond 30 days storage at 2-8°C will need to be determined.
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Does Sigma-Aldrich offer fetal bovine serum (FBS) that is antibiotic-free?
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FBS can be tested for the presence of antibiotics. Products F2442, F0926, and F6178, Fetal Bovine Serum are routinely tested for Tetracycline (by far the most commonly used antibiotic in animals) and the results are reported on the lot specific Certificate of Analysis.Per the USDA, Antibiotics may be given to prevent or treat disease in cattle. A "withdrawal" period is required from the time antibiotics are administered until it is legal to slaughter the animal. This is so residues can exit the animal's system. FSIS randomly samples cattle at slaughter and tests for residues. Data from this Monitoring Plan have shown a very low percentage of residue violations.The USDA does random sampling of all cattle submitted for slaughter in USDA inspected facilities for antibiotics. The mandatory withdrawal period is 24 hours. Based on withdrawal periods required by the USDA, animal testing at slaughter and finished product testing, our serum is antibiotic free.
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Are all Fetal Bovine Serum (FBS) products heat inactivated?
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Not all Fetal Bovine Serum products are heat inactivated. Product numbers F4135 and 12306C are heat-inactivated FBS.
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What is the cloning assay performed on Fetal Bovine Serum, Product F2442?
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The cloning efficiency assay is performed on each lot of FBS to verify that each lot will support clonal growth of myeloma cells and/or fusion products. The assay is performed using 5% and 10% concentrations of the FBS.
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