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What are the problems about using FBS in culture media? 


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The use of fetal bovine serum (FBS) in culture media presents several problems. Firstly, FBS is an ill-defined mixture of components with qualitative and quantitative variations, making it difficult to standardize experiments . Secondly, there are ethical concerns regarding the collection of FBS from bovine fetuses, as well as potential biosafety risks such as the presence of contaminants or adverse factors . Additionally, there is a global supply versus demand issue, with a severe geographical mismatch between the highest demand for FBS in the US and Europe and the major sources of FBS in countries like Brazil, Argentina, and South Africa . These factors have led to efforts to reduce or replace the requirement for FBS in cell culture media .

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The problems with using FBS in culture media are not mentioned in the provided paper.
The paper does not mention any problems specifically related to using FBS in culture media.
The paper mentions that using FBS in culture media for porcine umbilical cord matrix cells (PUCs) can increase the risk of microbial contamination and may not produce consistent results.
The problems with using FBS in culture media include batch-to-batch variations, potential contamination with adverse factors, ethical concerns about its collection from bovine fetuses, and concerns about the global supply versus demand.
The problems with using FBS in culture media include its ill-defined nature, ethical concerns regarding the collection from bovine fetuses, and concerns about the global supply vs. demand of FBS.

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