In this research, they wanted to find a way to turn a substance called HMF, which hinders fermentation, into something useful for us. They looked at different molds to see which could help convert HMF into a different compound. A modified type of Trichoderma atroviride showed the best results, converting 99% of HMF into a different compound, 2,5-diformylfuran. They also found that a substance called laccase, produced by the mold, played a big role in this conversion process. When compared to commercial laccases, the laccase from the mold was just as good at converting HMF. This shows that these fungi and their enzymes can change HMF into valuable products efficiently.