Cut apple oxidising, time-lapse footage

Videonummer 11945978
Cut apple oxidising. Time-lapse footage of the cut surface of an apple turning browning. When an apple is cut, molecular oxygen (O2) from the air causes oxidation in the injured plant tissue. Polyphenol oxidase (PPO) enzymes in the apple's chloroplasts rapidly oxidise phenolic compounds (like o-diphenols) to o-quinones. O-quinones are the colourless precursors to brown-coloured secondary products. This time-lapse was filmed over a period of two hours.
Lizenzart: Lizenzpflichtig
Credit: Science Photo Library / RHYS LEWIS & MINH TAN PHAM, AHS, DECD, UNISA
Modell-Rechte: nicht erforderlich
Länge: 9 Sekunden
Seitenverhältnis: 16:9
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