Although, previous study on propagation of Fusarium oxysporumshowed preference for Beta vulgaris with substantial free cyanide biodegradation including diauxic growth [1]. Battley [17] acknowledged that the results are not reproducible, due to the use of an adiabatic calorimeter. However, the results reported herein; i.e. from a MDSC^TM are generally deemed reliable thus reproducible. Albeit, if sufficient quantities of B .vulgaris and/or further pre-treatment of agro-industrial waste besides pulverising were used, better biodegradation and substrate utilisation performance could have been observed, as this influenced the integrity and the quality of the biomass being generated thus bioreactor performance. As such, it is feasible to suggest that a highly stressful environment culminates in poorly structured cells, which can impede the ability of such cells to detoxify a highly contaminated environment.