for vitamin B12 performed in 96-well microtitre plates.
The DSS eluate was considered to represent a 1:40 dilution of serum and was analyzed by microbiological assay
(2) with Lactobacillus casei subsp.
These EDTA-WB hemolysates require a further 20-fold (or more) dilution before analysis by microbiological assay
with Lactobacillus rhamnosus.
casei), used in the classical microbiological assay
of folate, would prevent the saponin molecule from reaching the outer bacterial membrane.
Serum folate was determined by a Lactobacillus casei microbiological assay
(22 ) and serum cobalamin by a L.
Traditionally, serum and erythrocyte folate were analyzed by microbiological assay
The microbiological assays
and culturing methods require minimum two to four days to produce results.
Their topics include the quantitation of vitamins using microbiological assays
in microtiter formats, determining vitamin C in fortified food products using high-performance liquid chromatography and mass spectroscopy, and analyzing carotenoids.