And methods of food-borne pathogens sensor

摘要

Mounted on the housing (12), and a (18) gas-permeable material comprising a pH indicator, for bacteria detection sensor foods perishable (10) is effectively a change in the level of carbon dioxide in the package is placed to be spaced from the packaged food or the surface to detect the. PH indicator acid based one, comprises a mixture of methyl orange and bromothymol blue with a sensor of the initial green color indicating an alkaline pH of approximately 7.2. Indicator changes to orange in the decrease in pH caused by the presence of carbon dioxide due to bacterial growth. Indicator such warning in the color change to reflect the safety that can be recognized universally.