Читать книгу Food Chemistry - Группа авторов - Страница 60

Physical Method: In physical method, we can detect the adulteration by using microscopic and macroscopic visual methods [55–59]. Analysis of food adulteration by using physical methods includes bulk density, solubility, texture, and morphology. Microscopic examination is helpful to detect some powder species, namely, cloves, coriander, and cumin leads to easily detection of extraneous starch present in these powder species.

Chemical and Biochemical Methods: These types of techniques are based on chromatography, spectroscopy, immunology, and electrophoresis method. Biochemical methods are more helpful than physical methods because the analytical approach involves various steps as follows:

 • Extraction of suitable solvents.

 • Chromatographic separation.

 • For removing interfering matrix components cleanup.

 • Selective detection.