Determination of folate concentrations in pulses by a microbiological method employing trienzyme extraction
2003
Han, J.Y. | Tyler, R.T.
Over the past two decades, the role of folate in human nutrition has been of much interest because of its relationship to diseases such as neural tube defects and heart disease. Since 1998, the U.S. Food and Drug Administration has mandated that cereal products be fortified with 140 microgram of folic acid/100 g. It is important, therefore, to be able to determine accurately the folate concentrations in cereals and other grains to ensure proper dietary intake of folate. In this study, a microbiological method employing a trienzyme extraction procedure was applied to the analysis of folate in several starchy grain legumes (pulses). Differences in the folate content of dry bean were observed among some market classes but not between cultivars in the same market class. Location had a significant effect on the folate content of lentil and dry pea; cultivar did not. The significant effect of market class, cultivar, and growth environment on the levels of folate in pulses is of particular importance to pulse processors and pulse breeders.
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