m not sure that circumin has very strong anti-fungal or antibiotic properties. It does have some antibacterial effect, and some believe this is why it was first
used in food prep in the first place, but it isn't the strongest thing out there. Garlic does have antibiotic and anti-fungal properties, but what is used is raw garlic oil or juice, not isolated allicin, which isn't very stable to use by itself in the open air.