In a major breakthrough in food safety, scientists have developed an artificial nose that can detect food spoilage. The nose, which is composed of a gas sensor array, can detect food spoilage up to three days before the food becomes inedible. This means that food can be identified as spoiled before it becomes dangerous to eat, saving consumers from potential food poisoning. The artificial nose can detect the volatile compounds that indicate food spoilage, such as sulfur dioxide, ethylene and ammonia. The hope is that this technology will be able to save lives by allowing food to be identified as spoiled before it becomes dangerous to eat.

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source: Phys.org