Result analysis

The research to check the relation between food decay and methane gas emission of bacteria started on September 20th and ended on September 26th.

We analyzed the experiment results to check if the food decay and the increase in methane gas concentration inside the food container really have a good relationship and actually explains the food decay detection process. We did it by graphing the data results by graphing the day vs methane gas concentration in ppm(percent per million of the methane molecule in the air that passes the sensor) of each food.

The uncooked bacon turned out to have a slope of 93.7. Since the uncooked bacon started to decay at the fastest rate, the data was measured only for four days and was deposed. The data of the last day of the experiment (370.8) made the slope of the graph much greater than the other 4 graphs.

The cooked bacon turned out to have a slope of 5.3.

The boiled egg turned out to have a slope of 4.87.

The white bread turned out to have a slope of 3.75. In the case of white bread, the correlation was low because of the outlier value of 155.1 which was due to sensor error.

The cooked rice turned out to have a slope of 3.55. In the case of cooked rice, the correlation was low because of the outlier value of 102.5 which was due to sensor error.

In a nutshell, mostly the slope was small, but the methane gas concentration truly showed an increase as the time flow.