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.
F2442
Fetal Bovine Serum
USA origin, sterile-filtered, suitable for cell culture, suitable for hybridoma
Synonym(s):
Fetal Bovine Sera, Fetal Calf Serum, FBS, FCS, sera, serum
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About This Item
Biological source:
bovine fetus
Origin:
USA origin
Sterility:
sterile-filtered
Shipped in:
dry ice
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biological source
bovine fetus
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
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1 of 4
This Item | 12103C | F4135 | F0679 |
|---|---|---|---|
| origin USA origin | origin USA origin | origin USA origin | origin non-USA origin |
| sterility sterile-filtered | sterility - | sterility sterile-filtered | sterility γ-irradiated, sterile-filtered |
| 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 |
| shipped in dry ice | shipped in dry ice | shipped in dry ice | shipped in dry ice |
| impurities ≤10 EU/mL endotoxin | impurities ≤10 EU/mL endotoxin | impurities ≤10 EU/mL endotoxin | impurities ≤10 EU/mL endotoxin |
General description
Fetal Bovine Serum (FBS) is a complex mixture with low and high molecular weight biomolecules exhibiting optimal growth-enhancing and growth-suppressing functions. FBS contains molecules, such as growth factors, proteins, vitamins, trace elements, hormones etc. These molecules are important for the growth and maintenance of cells. It is a common supplement for cell culture media.[1][2] FBS is derived from the calf blood. It is devoid of fibrin and clotting factors. Heat inactivation of FBS blocks the complement system.[3] FBS derived from clotted blood is the most widely used undefined supplement in eukaryotic, especially mammalian, cell culture.[4][5] It is typically used with the classical media that were developed in the 1950s and 1960s. These include many popular media such as Minimum Essential Medium (MEM),[6] Dulbecco′s Modified Eagles Media (DME, DMEM); Iscove′s Modified Eagles Medium (IMDM),[7] M199[8] and Roswell Park Memorial Institute medium, RPMI-1640.[6]
Application
Biochem/physiol Actions
FBS remains a popular media supplement because it provides a wide array of functions in cell culture. FBS delivers nutrients, growth and attachment factors and protects cells from oxidative damage and apoptosis by mechanisms that are difficult to reproduce in serum-free media (SFM) systems.
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
Tested for the presence of bacteria, virus, mycoplasma, endotoxin and for hemoglobin content. Triple filtered with 0.1 micron membrane under aseptic conditions.
related product
Product No.
Description
Pricing
Storage Class Code
10 - Combustible liquids
WGK
WGK 3
Flash Point(F)
Not applicable
Flash Point(C)
Not applicable
Personal Protective Equipment
dust mask type N95 (US), Eyeshields, Gloves
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Ife Journal of Science, 4B, 3088-3093 (2015)
Optimization of chemically defined cell culture media--replacing fetal bovine serum in mammalian in vitro methods.
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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)
1 answer-
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?
1 answer-
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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There is a precipitate in my serum. Is my serum contaminated?
1 answer-
Precipitates in serum can often appear as large round bodies, even as doublets per microscopic exam. This can be mistaken as a yeast contamination. Brownian motion may be mistaken for motility. These are lipid aggregates that will be readily dissolved when exposed to lipase. Also, these particles will not gram stain or show any growth in culture on aerobic, anaerobic, or fungal media and culture conditions. The performance of the material is not effected. Centrifugation or filtration of small volumes will remove these particles.
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What is the difference between Fetal Bovine Serum F2442 and 12103C?
1 answer-
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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Is Fetal Bovine Serum, Product F2442, available as a charcoal stripped, de-lipidated serum?
1 answer-
We offer Product No. F6765 (Fetal Bovine Serum, charcoal stripped). The charcoal stripping decreases the levels of hormones; it may also decrease the levels of lipids. If further reduction of lipid levels is required, you may need to treat the serum with fumed silica (e.g. Product No. S5130). Use 20 grams of S5130 per Liter of serum (not plasma). It is mixed for 3-4 hours, then centrifuged in 1 L containers for about 15 minutes at 2000 xg. The supernatant can then be decanted, and filtered if desired. NOTE: Silica is extremely fluffy, and care must be taken not to inhale its dust. Allow for about 15% loss of the serum due to adsorption.
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How is Fetal Bovine Serum, Product F2442, cell culture tested?
1 answer-
Biological performance is assessed using Sigma cell culture medium supplemented with the serum and tested at a final concentration of 10%. Seeding efficiency, doubling time, and final cell density are measured on appropriate cell lines. Growth studies are carried through two subculture generations and cell growth is plotted as a logarithmic function of time in culture. During the testing period, cultures are examined microscopically for atypical morphology and evidence of cytotoxicity. Hybridoma -tested serum has been shown to support mouse myeloma cells and hybridoma cells in culture.
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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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