In the late 1970s Harvard Medical School researcher Joel Habener serendipitously discovered a hormone in monkfish called GLP-1 (glucagon-like peptide).
Here is the recipe he and his team discovered: organic material, like grass clippings or agricultural waste, is mixed with a stabilizing peptide powder and from that protein is extracted from the materials, stabilized.
Peroxynitrite is a source of hydroxyl radical-like reactivity, and it directly oxidizes proteins and other macromolecules with resultant carbonyl formation from side-chain and peptide-bond cleavage.