期刊
JOURNAL OF FOOD SCIENCE
卷 67, 期 8, 页码 3164-3169出版社
INST FOOD TECHNOLOGISTS
DOI: 10.1111/j.1365-2621.2002.tb08877.x
关键词
modified atmosphere packaging; quality control; optical oxygen sensor; nondestructive monitoring; packaging materials
The phase-fluorimetric oxygen sensing system recently developed by our team was used for nondestructive measurement of oxygen content in the heasdspace of 4 types of ham slice products. The system allowed accurate measurement of oxygen levels in all types of ham packs in a contact-less nondestructive fashion; it worked satisfactorily under ambient light and in conditions of direct contact with packaged cooked ham slices and variation of sample temperature. A primary screening for oxygen content of the modified atmosphere packs revealed that a significant proportion of packs contained elevated levels of oxygen. The sensor demonstrated minor changes in calibration as a result of direct physical contact with food and prolonged exposure.
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