A study from the İzmir Institute of Technology published in Food Chemistry shows that combining FT-IR spectroscopy with chemometric modeling enables rapid, non-invasive screening of iron supplements and protein–iron complexes for their ability to restore cellular iron status in iron deficiency anemia models.
This video was made with the help of NotebookLM.
According to a study published in the journal Food Chemistry, Fourier transform infrared (FT-IR) spectroscopy, when combined with chemometric modeling, can rapidly assess the effectiveness of iron supplements in a cellular model of iron deficiency anemia (IDA).1 This study is the latest research that highlights a non-invasive screening approach that could streamline how functional food ingredients targeting anemia are evaluated during early-stage development.
IDA is a common condition, which emerges when blood does not have enough healthy blood cells coupled with not getting enough iron.2 Some of the most common symptoms of IDA include shortness of breath and tiredness, but it can also result in tongue irritation, lightheadedness, pale skin, and restless leg symdrome.2
In their study, the researchers evaluated whether iron formulations and delivery systems actually restore cellular iron status, without relying on time-consuming or costly biological assays. Using FT-IR spectroscopy paired with soft independent modeling of class analogy (SIMCA), the researchers built a classification model based on spectral differences between healthy and anemic cells, then tested whether treated cells shifted toward a “healthy” biochemical profile.1
In their calibration experiments, the researchers used their model to classify nine out of 10 healthy control samples and all IDA samples correctly.1 Validation using cells treated with commonly used iron supplements showed that 14 of 15 samples were identified as healthy, supporting the model’s reliability.1 Then, the researchers applied their approach to plant-based protein–iron complexes, which is an emerging class of ingredients for fortified foods.1,3
The results revealed a clear formulation-dependent effect. All samples treated with protein–iron complexes at a 60:1 protein-to-iron ratio clustered with the healthy group, while three of four samples treated at a 10:1 ratio were classified as anemic.1 These spectral classifications were corroborated by changes in iron-regulated gene expression, including transferrin receptor (TFR) and ANKRD37, which provide molecular support for the FTIR-based findings.1
Although FT-IR spectroscopy and chemometric tools are established techniques, their combined use as a rapid screening platform for iron supplementation efficacy represents a novel application. By integrating biochemical fingerprints with gene expression markers, the study offers a high-throughput method for evaluating functional ingredients before advancing to more resource-intensive testing.1
