A NEW REFRACTOMETRIC METHOD OF INVESTIGATION FOR THE DISTINCTION BETWEEN FRESH AND FROZEN

  • RAFFAELE CONTE INSTITUTE OF BIOMOLECULAR CHEMISTRY, NATIONAL RESEARCH COUNCIL (CNR), NAPLES, ITALY.

Abstract

A new method of differentiation between fresh and frozen meat is introduced, based on the measure of an indicator called “residual solid content of the bloodâ€. This freshly generated parameter derives from the index of refraction of the re-solubilized fraction in distilled water of the blood extracted from the edible that has interacted with the polypropylene of the Eppendorf Safe-Lock Tubesâ„¢, and it is measured through a simple hand-held refractometer. Aim of this research is to provide a simple, reproducible and inexpensive procedure of quality control investigation, especially designed for the application against the frauds in the tertiary sector.

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RESEARCH PAPER