PubMed · 5956147
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L N Thornton. 1966. Meat hygiene.. https://doi.org/10.1111/j.1751-0813.1966.tb07633.x
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Records of restaurant inspections by public health departments provide sequential "snapshots" of conditions in retail food service establishments that can be used to identify risk factors and evaluate the effectiveness of interventions. Data from a random 10 percent sample of restaurant inspection files from 31 counties in Oklahoma, including 4,044 inspections conducted during 1996-2000 in "medium-risk" and "high-risk" establishments, were analyzed to determine rates of critical violations and recurrent violations for different categories of establishments. Repeat violations accounted for about half of all violations. Establishments subjectively designated as high risk by health department personnel were in fact found to have higher violation rates than those described as medium-risk establishments. Outside Oklahoma County, regional chain restaurants were significantly more likely than other restaurants to have recurrent violations of critical items related to food-holding temperature, hygiene practices, sanitization, and hygiene facilities. Differences observed in violation rates among individual establishments were not primarily attributable to inconsistent enforcement by individual inspectors; rather, they appeared to be indicative of real differences in hygienic conditions and practices.
Magnetic resonance imaging (MRI) was applied to detect nonvisible internal bruise and spraing symptoms and to get insight on the chemical and anatomical causes of such defects. Cultivar Saturna with internal bruise and cultivar Estima with spraing symptoms were investigated by comparison of different MR images as proton density-, T(1)- and T(2)-weighted images and T(2) maps. In all these types of MR images, it was possible to identify internal bruise and spraing spots in the potatoes, where these phenomena were present. When combining the information in the MR images, the interior of the internal bruise was characterised as being very dry (low signal in the proton-weighted image) with a small amount of highly mobile water in the shell around the bruise (high signal in T(2)-weighted image and high relaxation time in T(2) map). The spraing spots were more diffuse; however, the dry interior and highly mobile water around the spraing dots were somewhat similar to the appearance of internal bruise but resembled more the appearance of human tumour tissue than bruise disorders in, for example, fruits. In conclusion, this study demonstrated that MRI can detect nonvisible internal bruise and spraing symptoms in potatoes, which has not been published before. MRI may, therefore, be an appropriate method for detecting and for studying developmental changes of such disorders and related disorders during postharvest storage in future experiments.
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