Although the process of fermentation was not fully understood until Louis Pasteur's work in 1857, it is still the first use of biotechnology to convert a food source into another form.
Harwa as ašanzi ən assəsmam war eqel ayknan atwəjrah dat ašəɣəlan win Louis Pasteur ɣor 1857, adartidila awen atkul azaran ən tamudre ənmusnat ye assəmutiy ən edaj nətaɣam dǎɣ ini iyan.