Summary
López et al. (2001) investigated the capacity of sourdough fermentation to degrade phytic acid in cereal-based foods through the action of lactic acid bacteria and endogenous phytases. The work demonstrates that fermentation substantially reduces phytate levels, as suggested by the title and journal context. This finding has nutritional significance for mineral bioavailability, particularly for iron and zinc, which are otherwise chelated by phytic acid in unfermented cereal products.
Regional applicability
The findings are relevant to UK bread-making practices and nutritional policy, particularly for populations with lower micronutrient intakes or those relying on cereal-based staples. Promotion of traditional sourdough fermentation methods could enhance mineral bioavailability in commercially produced bread.
Key measures
Phytate concentration; phytase enzyme activity; mineral bioavailability (inferred for iron and zinc)
Outcomes reported
The study measured phytic acid (phytate) content in cereal products before and after sourdough fermentation. The research evaluated whether lactic acid bacterial fermentation activates endogenous phytases to reduce antinutrient levels.
Topic tags
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