00:00Have you ever bought fresh yellow bananas, only to find them covered in dark brown spots
00:04just two days later?
00:06This annoying food change is not rot, it's a natural enzyme reaction inside every banana.
00:13Bananas release massive amounts of ethylene gas as they ripen.
00:17This gas activates polyphenol oxidase, a special enzyme inside fruit cells.
00:23When banana flesh contacts oxygen in the air, the enzyme reacts with phenolic substances
00:28and creates dark brown melanin, the same pigment that colors human skin.
00:33Refrigeration speeds up banana skin browning because low temperatures damage cell walls.
00:39Want a slow ripening?
00:42Wrap banana stems tightly with plastic wrap to block ethylene gas release.
00:47This easy kitchen trick saves you from wasted bananas.
00:51Drop a like if you hate brown bananas too.
00:54Subscribe for more hidden food science hacks.
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