Hali nɔ kumuli labɛnsira ma see ka famu ka ban yani Louis Pasteur ka baaraw ka kɛ saan 1857, kuma bɛ baara fɔlɔ min kɛra ni biyotɛkinolozi ye yasa ka dumini fen yɛlɛma ka kɛ fen wɛrɛ ye.