| Literature DB >> 1368624 |
S Kurano1, N Kurano, C Leist, A Fiechter.
Abstract
The concentrations of four vitamins, ascorbic acid, nicotinamide, choline and thiamine were evaluated in the culture supernatant of Chinese hamster ovary (CHO) cells. The media used were alpha-modified Eagle's minimum essential medium (MEM-alpha) supplemented with 10% fetal calf serum, and a 1:1 mixture of Ham's F12 and Dulbecco's modified Eagle's medium (DME/F12), containing neither serum nor protein. The reference experiment without cells revealed instability of ascorbic acid and thiamine. Moreover, a significant amount of each vitamin decreased in the culture supernatant. The possibility of growth limitation by vitamin depletion is strongly suggested.Entities:
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Year: 1990 PMID: 1368624 DOI: 10.1007/bf00563784
Source DB: PubMed Journal: Cytotechnology ISSN: 0920-9069 Impact factor: 2.058