Write at the end
In addition to indole & fecal stinkin, dimethyl sulfide was also detected in the fart, which is also a common cooking spice, used to match pineapple, orange, corn, tomato and other fruit aromas at low concentrations, but the concentration exceeds 30 ppm, which smells like rotten kelp with a fishy smell; in addition, there are also aromatic substances such as limonene, α-pinene and β-pinene in the fart.
Everyone's fart smells different, even if it is the same ingredient of fart, different people smell different. The human body has an odor receptor gene called OR7D4, and the difference in carrying the OR7D4 gene determines how people feel about the odor of androstenone.
In addition, the fart contains methane, hydrogen, oxygen, hydrogen sulfide and other combustible gases, which also makes the fart become a manic gas, with its own flammable and explosive characteristics. In 2014, a fire broke out on a dairy farm in Germany, and after investigation, 90 cows were farting in the cowshed, causing a fire due to static electricity. During an operation at the Tokyo Medical University Hospital, an instrument laser ignited the fart in the patient's intestines, causing the patient to be burned.