YX/S,0 is the biomass yield before induction [g/g]; mX,i is the biomass at time of induction [g]; mX,0 is the biomass at time of inoculation [g]; mS,i is the consumed sugar at time of induction [g]; YX/S,n is the biomass yield after induction at time point n [g/g];mX,n is the biomass after induction at time pointn [g]; mS,n is the consumed sugar after induction at time point n [g].