Why Do Bananas Turn Black?

Answer

Bananas normally turn black because they release an enzyme called polyphenyl oxidase. This is an oxygen-dependent enzyme, which polymerises naturally occurring phenols in the banana skin. Bananas should however be kept in a well ventilated place.
Q&A Related to "Why Do Bananas Turn Black"
Bananas become very mushy when allowed to ripen past light brown, meaning that the starches inside the fruit naturally convert to sugar as they ripen. This is exploited to greater
http://www.ehow.com/info_12039763_bananas-turn-bla...
They turn Black because mold grows on them if they get old. Actually... "The green skin of banana contains a gaseous plant hormone, ethylene, which diffuses into the fruit and
http://wiki.answers.com/Q/Why_do_bananas_go_black
The cold temperature of your fridge encourages an enzyme (polyphenyl oxidase) naturally found in the banana to polymerise phenols in the banana skin into polyphenols . Polyphenols
http://www.quora.com/Why-do-bananas-turn-black-whe...
Actually when bananas turn brown is because they contain an enzyme (called polyphenol oxidase or tyrosinase) that reacts with oxygen and iron-containing phenols that are also found
http://answers.yahoo.com/question/index?qid=200905...
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