Heat denatures the proteolytic enzyme and prevents autolysis. This partially hydrolyzes the proteins, which denatures them. Heating during the oil extraction process denatures and deactivates the lectin. Boiling the yeast extract renders all proteins inactive (as it denatures them). Alcohol denatures proteins very well and by extension germs too. When protein denatures, DCVJ increases in fluorescence. A chaotrope denatures biomolecules by disrupting the shell of hydration around them. Most biomolecules denatures or lose its activity when interacted with the electrode. At boiling temperature, the carcinogen denatures almost completely. Electrocautery releases heat that denatures pulp and reduces bacterial contamination. This led them to discover that a developmentally regulated activity denatures RNA&colon;RNA hybrids in embryos. These properties dictate the threshold at which DNA denatures. Unfortunately, the extrusion process actually denatures some of nutritional elements of the food. He has publicly stated that it "denatures" French culture.