xiv List offigures Figure 7.1 Electrodialytic production of fermented organic acids.172 Figure 72 Conventional production of lactic acid. 175 Figure73 Production of lactic acid by Rhizopus and simultaneous saccharification and fermentation(SSF). 176 Figure 7.4 Conventional production of sodium citrate by utilization of the fungus Aspergillus niger. Figure 8.1 The content of undissociated acid declines with an increase in pH value. 186 Figure 13.1 Schematic representation of the processes involved in biopreservation 272xiv List of figures Figure 7.1 Electrodialytic production of fermented organic acids. 172 Figure 7.2 Conventional production of lactic acid. 175 Figure 7.3 Production of lactic acid by Rhizopus and simultaneous saccharification and fermentation (SSF). 176 Figure 7.4 Conventional production of sodium citrate by utilization of the fungus Aspergillus niger. 179 Figure 8.1 The content of undissociated acid declines with an increase in pH value. 186 Figure 13.1 Schematic representation of the processes involved in biopreservation. 272