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It is due to a defense mechanism in the fruit, which is activated when the fruit is cut from the tree.
There are three main factors involved in the ripening and browning process, they are: enzymes, oxygen and phenols. Enzymes are protein-like substances that speed up or initiate chemical reactions. Phenols are defensive mechanisms the plant uses to fend off insects and microbes. The specific enzyme is called polyphenoloxidase. When the banana is attacked, the phenols are activated in the presence of oxygen by this enzyme. In this process the brown color is produced as a side effect. The first time the banana is attacked is when it is cut from the tree. Exposure to cold air, certain gases, and physical damage of the fruit will hasten the process.
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∙ 13y ago
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∙ 15y agoyes! you can put lemon juice on them. i did an experiment on this in sixth grade
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∙ 15y agoDepending on different environmental conitions, just about a week.
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∙ 9y agoPolyphenol oxidase react with oxygen; this complex is a catalyst for the transformation of vegetal phenols in brown pigments.
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∙ 14y agobannas brown when air polltes it
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∙ 15y agoIt takes 2 weeks
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∙ 13y agoabout 2 weeks
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How can you try to keep bananas fresh for a longer time so they don't go brown?
Answer:The best way to keep bananas so they don't ripen too quickly, is to hang them up so they are not touching anything. This is done in many large supermarkets in England.
Can bananas turn into flies?
Fruit cannot magically transform into insects. It is biologically impossible.
What can i do for a bruised tailbone from falling flat on my back?
The best thing to do to help a bruised tailbone from falling flat on your back is to take NSAID's and to apply ice to the bruised area.
Could an egg turn brown in soda?
No it can not,but it can turn white or become soft in vinegar.
What color contacts will turn hazel eyes deep chocolate brown?
Chestnut brown contacts.
What colors can bananas be?
Bananas are green when not yet ripened, yellow when they are good to eat, and brown/black when they are rotting and going bad.
Why do bananas brown?
because if you leave it out it will rot and turn brown
Do bananas turn brown in the cold?
Yes.
How do you stop bananas turn brown?
gez on them
Who is the author of why do bananas turn brown?
Ryan Secreast
Do bananas treated with fruit fresh brown faster or slower?
Bananas should be slower to turn brown if treated with Fruit Fresh.
Will bananas will turn brown faster in a plastic bag?
Yes.
How long are bananas good for after they are opened?
Not for long. They turn brown and yucky.
Is a banana yellow?
Bananas are green, but when they are ripe they turn yellow. When they are rotten, they get brown blotches and eventually turn all the way brown.
Do the bananas turn brown in banana split dessert?
Yes, due to much sugar and potassium contained in bananas.
Will the brand of the banana determine whether the banana will brown faster on the counter or in the refrigerator?
It does not matter what brand. Bananas turn brown faster in the refrigerator.
What food turns brown if left out?
Bananas, apples, pears, strawberries, celery, avocado, and potatoes all turn brown if left out for long enough.
