a er ob ic , ▁non - sp or ulating , ▁polar ly - flag ell ated , ▁rod - sh aped ▁b acter ium . ▁ ▁It ▁is ▁the ▁only ▁species ▁found ▁in ▁the ▁genus ▁Z ym omon as . ▁It ▁has ▁notable ▁bio eth an ol - produ cing ▁capabilities , ▁which ▁sur pass ▁ye ast ▁in ▁some ▁aspects . ▁It ▁was ▁originally ▁isolated ▁from ▁alco hol ic ▁be ver ages ▁like ▁the ▁African ▁pal m ▁wine , ▁the ▁Mexican ▁pul que , ▁and ▁also ▁as ▁a ▁cont amin ant ▁of ▁c ider ▁and ▁be er ▁( c ider ▁sick ness ▁and ▁be er ▁spo il age ) ▁in ▁European ▁countries . ▁ ▁Be er ▁spo il age ▁Z ym omon as ▁is ▁an ▁unw anted ▁water bor ne ▁b acter ia ▁in ▁be er , ▁creating ▁an ▁est ery - s ulf ury ▁flav or ▁due ▁to ▁the ▁production ▁of ▁ac etal de hy de ▁and ▁hydro gen ▁sul f ide . ▁This ▁can ▁be ▁li ken ed ▁to ▁a ▁ro tt en ▁apple ▁sm ell ▁or ▁f ru ity ▁od or . ▁Z ym omon as ▁have ▁not ▁been ▁reported ▁in ▁l ager ▁bre wer ies ▁due ▁to ▁the ▁low ▁temper atures ▁( 8 – 1 2   ° C ) ▁and ▁string ent ▁car bo h yd rate ▁requirements ▁( able ▁to ▁fer ment ▁only ▁suc rose , ▁gl uc ose , ▁and ▁f ruct ose ). ▁It ▁is ▁commonly ▁found ▁in ▁c ask - condition ed ▁al