Exploring grape marc as trove for new thermotolerant and inhibitor-tolerant Saccharomyces cerevisiae strains for second-generation bioethanol production

Table 2 Influence of weak acids (acetic and formic acid) and furans (furfural and HMF) on growth in YNB medium (supplemented with glucose 20 g/l) pH 4.5, of the most inhibitor-tolerant newly isolated S. cerevisiae strains and the most resistant benchmark yeast 27P ^a

Abbreviations: HMF 5-hydroxymethylfurfural, YNB yeast nitrogen base.
^aValues are reported as relative growth (%) of the optical density measured for each strain after 40 hours of growth in YNB without inhibitor, and are the means of three replicates. Standard error was always less than 4% (not shown). Bold and italic fonts are used for values equal to or greater than 90 and equal to or less than 50, respectively.
^bControl strain.
^cFor compostion of inhibitor cocktails, please see Table 3.

ISSN: 2731-3654