Hwang SY, Su V, Farh L, Shiuan D. Bioassay of biotin concentration with a Escherichia coli bio deletion mutant.
JOURNAL OF BIOCHEMICAL AND BIOPHYSICAL METHODS 1999;
39:111-4. [PMID:
10344504 DOI:
10.1016/s0165-022x(98)00012-8]
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Abstract
Biotin concentration was determined unequivocally with the E. coli bio mutant. The results demonstrate that this simple and efficient method can determine biotin concentration in the range of 10 pg to 50 ng/ml. The present method can also clearly distinguish biotin from its precursor and analog, dethiobiotin.
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