Effect of Inhibition Substances on Monod Equation of Yeast Growth

Comparative Study of Hydrothermal Pretreatment of Eucalyptus and Oil Palm Empty Fruit Bunch for Ethanol Fermentation

“…In previous studies, furfural, acetic acid, and formic acid affected the yeast growth at 0.5, 0.9, and 0.7 g/kg, respectively 22) . Thus, the concentration observed here is expected to affect the yeast growth in the fermentation stage.…”

“…Acetic acid is known to be relatively stable under hydrothermal conditions, and is often observed in super critical water oxidation processes, so its accumulation is predictable. It is also known that acetic acid inhibits yeast growth, but does not inhibit ethanol fermentation 22) . Thus, its effect on ethanol production can be limited.…”

Effect of Low-concentration Furfural on Sulfur Amino Acid Biosynthesis in <i>Saccharomyces cerevisiae</i>

“…However, hydrothermal pretreatment also generates a number of compounds, including furfural, 5-hydroxymethyl furfural (5-HMF), acetic acid, and formic acid 4) , which adversely affect yeast fermentation. High concentrations of furfural have inhibitory effects on yeast growth 5) and fermentation 6) , but the mechanism of inhibition is still under investigation. For example, the addition of furfural is shown to induce the generation of reactive oxygen species in Saccharomyces cerevisiae 7) .…”

Effect of Preculture Conditions on Simultaneous Saccharification and Fermentation for Effective Ethanol Production

“…However, this method produces fermentation inhibitors, such as furfural 6) . These fermentation inhibitors affect yeast growth and fermentation 7) . The inhibition mechanism of 5-HMF has been investigated, especially the expression of genes related to inhibitor tolerance 8),9) .…”