Enzymatic browning

https://link.springer.com/chapter/10.1007/978-981-13-1933-4_4

https://www.food-info.net/uk/colour/enzymaticbrowning.htm

https://foodtechpathshala.com/science-of-enzymatic-browning-in-fruits-and-vegetables/

https://www.sciencedirect.com/topics/agricultural-and-biological-sciences/enzymatic-browning