Researchers reviewing marine-derived fungi found these deep-sea organisms pump out unusual compounds that do double duty: they kill the mold and pathogens that rot fruit and veg, while also mopping up the oxidative damage that makes produce go limp and brown. The clever part is the multi-target attack, hitting pathogens through several mechanisms at once (busting their cell membranes, triggering oxidative stress, starving their energy supply), which makes it much harder for spoilage fungi to build resistance the way they do against conventional fungicides. Baked into biodegradable films, these compounds point toward a green, residue-free alternative to the synthetic preservatives currently coating your groceries.