Towards Improved Bioavailability of Cereal Inositol Phosphates, Myo-Inositol and Phenolic Acids

Summary

This review examines the nutritional significance of myo-inositol hexakisphosphate (phytic acid), lower inositol phosphates and phenolic acids found in cereal bran fractions, with a focus on how their bioavailability may be enhanced through germination, endogenous enzyme activity and food processing. The authors consider the interplay between cereal-associated enzymes — including phytase and feruloyl esterase — and salivary enzymes in initiating the release of bioactive compounds during digestion. The paper likely synthesises current evidence on how optimising these processes could improve human health outcomes associated with cereal consumption, particularly with respect to metabolic and gastrointestinal conditions.

UK applicability

Although the review is international in scope, its findings are directly relevant to UK cereal processing and food formulation industries, particularly given the prominence of wheat in UK diets and ongoing policy interest in improving nutritional quality of staple foods. Recommendations regarding germination and enzyme-assisted processing could inform UK whole-grain and functional food product development.

Key measures

Phytate (IP6) and lower inositol phosphate (IPx) concentrations; free and total phenolic content; enzyme activities (phytase, feruloyl esterase, xylanase, β-glucanase, amylase); bioavailability indicators for myo-inositol and mineral release

Outcomes reported

The paper examines strategies to improve the bioavailability of cereal-derived inositol phosphates, myo-inositol and phenolic acids, likely reviewing the roles of endogenous and exogenous enzymes, germination and food processing techniques. It assesses how these compounds and their degradation products contribute to health outcomes, particularly in relation to metabolic syndrome and colon cancer prevention.

Topic tags