Detection of food fraud of meat products from the different brands by application of histological methods

Abstract

In Sohag City, 400 samples were collected from different food markets of different meat products from two companies with high and low prices (e.g., minced meat, kofta sausage, beef burger, and luncheon meat) for determining food fraud. Light, fluorescence, and scanning electron microscopy (SEM) were used to examine the samples."Special histochemical stains" permit the microscopic examination of different cell types, structures, and/or microorganisms. Histological examination revealed variant tissue types, besides skeletal muscles. Nuchal ligaments, bones, hyaline cartilages, white fibrocartilages, large and medium arteries, cardiac muscles, tendons, and collagenous connective tissues comprised the capsule of a parenchymatous organ. Additionally, a crystal of food additives was recognized using light microscopy and SEM. SEM allows the visualization of bacterial contamination. Using different microscopic anatomy techniques is an efficient methodology for qualitative evaluations of various meat products. No difference in quality was observed between low-and high-priced meat products.

Análise da composição e da qualidade da carne previamente moída comercializada no estado do Rio de Janeiro (RJ) – Aspectos forenses

“…Abd-Elhafeez et al [54] utilizaram, em seu estudo, técnicas histológicas para avaliar amostras de carne moída e hambúrguer. Neste tipo de produto, não é incomum serem encontrados ligamentos, ossos, cartilagens hialinas, fibrocartilagens brancas, grandes e médias artérias, músculos cardíacos, tendões e tecidos conjuntivos, além do músculo esquelético, nos produtos avaliados.…”