Actually... "The green skin of banana contains a gaseous plant hormone, ethylene, which diffuses into the fruit and hastens the process of ripening.
It is yellow when the fruit is ripe and turns black with the production of more and more ethylene. The large number of enzymes of Kreb's cycle convert citric acid, mallic acid and oxalic acid into glucose in a banana, to make it sweet during the process of ripening. When the banana is kept in the refrigerator, the enzymatic reactions are stopped by the cold but the production of ethylene hormone continues. This turns its skin black
A darkened center in a banana can be a sign of a fungal infection caused by Nigrospora. From my reading I do not see where this is harmful to consume though I would not recommend consuming soft, gooey areas.
Nigrospora can cause a dark center in the banana which can eventually lead to a softening of the entire banana pulp. This fungal disease, known as Squirter's (because eventually the soft banana pulp can "squirt" out of the banana skin) is common in tropical areas where bananas are normally grown. The fungal disease develops from infection at the time the bunches are cut into single fruits and develops during transportation and ripening. Initially, the disease can be seen as a dark core, or a broken line of dark-red gum-like substance along the center core or near the end. The fruit becomes soft, and the flesh is transformed into a mushy liquid which squirts out at the base when slight pressure is applied.
I would recommend not consuming any dark areas within a banana, but the rest of the flesh should be safe to consume.
Carol
The cold air, to which the banana is exposed, causes the production of blackening compounds known as polyphenals.
its because of the enenzyme in the banana called pholyphenol
that depends on the size and weight of the banana but tradition says 5 oz.banana
No, some people say that but it is not true!
The banana will go black and be inedible
A banana is in the fruit family. Bananas, believe it or not, have seeds. If you cut a banana, you will see small black dots around the center. Those dots are seeds. All fruit has seeds. A banana, having seeds, is a fruit.
Well, a banana does have seeds but they are not viable. When you eat a banana, you will notice some black spots in the centre, these are the seeds of the banana. A banana plant reproduces with it's stem and not it's seeds because they are too small.
Black banana's are safe to eat. When they darken their sugars become concentrated and they become very sweet. This banana is very good in making banana pound cakes, loafs, and muffins. When I buy banana's I wait until they become totally blackened so that I can use them for baking a great banana treat!
A banana will slowly turn black as it starts to go rotten.
potassium in the banana reacts to water and melts the banana
Because the seeds are in the center of the banana so you can't see them unless you cut to the banana in half width wise.
blue bronze brass black banana yellow? blonde berry
brownish black
Have you been eating bananas lately? The center of the banana can cause this to happen sometimes. If you think you have a parasite take a stool sample and give it to your doctor.
it turns black because air is around it when u open a banana use airtight Ziploc i read this in a science from scientist