Histochemistry

The study of the chemical components of cells and how they are distributed, carried out by means of chemical reactions that make structures visible. Methods employed include microscopy, radiography, and chromatography, often in combination. In food research it helps map where fats, proteins, starches, and contaminants sit inside plant and animal tissues, informing processing and quality decisions — for example, showing how fat is distributed in a meat emulsion or where minerals concentrate in a grain kernel. By linking chemistry to location, histochemistry gives food scientists a spatial understanding that bulk analysis alone cannot provide.