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Ochratoxin is secreted as a mold. ochratoxin is regulated in europe but not in bottles of wine from the u.s. enter the chaplin school of hospitality and its new wine lab where students are looking for ways to fight the toxin. >> we are trying to create unique strains of yeast. yeast with really unique characteristics that makes wine better. >> is growing, growing on medium with ochratoxins. >> reporter: what dr. aaron welch and his team are trying to do is genetically alter the yeast to also kill the toxins. >> the yeast we want make will be a good fermenter. so it will produce good alcohol fr...

The problem starts here where ochratoxin is secreted as a vineyard mold, a mold that grows in warm and humid environment. ochratoxin is regulated in europe but not in bottles of wine from the u.s. enter the fiu chaplain school of hospitality and the new wine lab where students are looking for a way to fight the toxin. >> we are trying to create unique strains of yeast. yeast with really unique characteristics that makes wine better. this is growing on medium without ochratoxin and with ochratoxin. >> reporter: what dr. aaron welch and his team are trying to do is genetically alter the yeast to...