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PMID 31959736
Methods for the analysis of vitamin B 12 in food Several methods have been used to determine the vitamin B 12 content in foods including microbiological assays, chemiluminescence assays, polarographic, spectrophotometric, and high-performance liquid chromatography processes
Adding 2.0 mL of bacteriostatic water gives a 5 mg/mL working concentration, where 100 mcg equals 2 units on a standard U-100 insulin syringe
[127] [128] Synthesis [edit] Biosynthesis [edit] Vitamin B 12 is derived from a tetrapyrrolic structural framework created by the enzymes deaminase and cosynthetase which transform aminolevulinic acid via porphobilinogen and hydroxymethylbilane to uroporphyrinogen III
It isnt bioenhanced
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