Andrew showed that dosing yeast alcohol fermentations with small amounts of acetaldehyde can restore the intracellular redox balance and greatly improve the ability of the microorganisms to cope with chemical and environmental stresses. He demonstrated how this can be applied in industry to decrease fermentation times and prevent stuck fermentations.

Sjoerd identified the electrochemical mechanisms governing the extraction of gold using an ammoniacal thiosulphate solution. Leaching efficiency was affected by the formation of layers passivating the gold surface and galvanic interaction between gold and associated minerals. This work has demonstrated that a non-toxic and environmentally friendly leaching medium is feasible for selected gold ores.