Green bananas


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yeocolin

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#1
Hi,
If you've done shopping at NTUC, you'll realise the Del Monte bananas they hang are all green. Interestingly, after buying it, they turn yellow in less than 6-8 hours. My question is, if these bananas turn yellow so fast, then what happens to the unsold bananas? After all, when I buy them, its already close to closing time and yet the section is hanging full of bananas. Won't they all turn yellow the next morning, like those that I bought? If so, do they just cheap sale it away or return to the wholesaler, since I don't see NTUC selling yellow bananas.
 

Nov 12, 2003
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#2
they give em pajamas and they walk around terrorizing naughty teddies in the toy section...

quite frankly i have no idea. but i've seen yellow ones on sale.

and real nasty ones, usually expired, are sold to worms bent on world domination...
 

clive

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Oct 9, 2002
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#3
u shld go to ntuc early the next morning to verify whether ntuc really transfer the "turned yellow" bananas and label them as yellow bananas for sale :light:
 

photogene

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#5
yeocolin said:
Hi,
If you've done shopping at NTUC, you'll realise the Del Monte bananas they hang are all green. Interestingly, after buying it, they turn yellow in less than 6-8 hours. My question is, if these bananas turn yellow so fast, then what happens to the unsold bananas? After all, when I buy them, its already close to closing time and yet the section is hanging full of bananas. Won't they all turn yellow the next morning, like those that I bought? If so, do they just cheap sale it away or return to the wholesaler, since I don't see NTUC selling yellow bananas.

Banana ripes due to warm temperature/heat. I guess your house must be quite warm to ripen the banana... ;)

I have seen yellow ones. Over ripe ones are discarded or sent to the zoo. :bsmilie:
 

zekai

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May 10, 2002
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#6
Ripening is a process in fruit that causes them to become more edible. In general, fruits get sweeter, less acidic, less green and softer as they ripen.

An important plant hormone involved with ripening is the chemical ethylene. Ethylene is a gas created by plants from the amino acid methionine, and can easily be created synthetically. Ethylene causes increased levels of certain enzymes in the fruit. These enzymes include:

amylase, which breaks down starch to produce simple sugars.
pectinase breaks down pectin, the substance that keeps fruit hard.
Many fruits are picked prior to full ripening, because ripened fruits do not ship well. For example bananas are picked green, and then gassed with ethylene after shipment, so they can be artificially ripened. It is also possible to speed ripening at home. For example, kiwifruit are often is slow to finish ripening, and ripening can be hastened by placing the fruit in a bag with an apple, which gives off natural ethylene gas.

Ethylene gas can also cause damage. If apples are stored with pototoes that have not been treated to prevent sprouting, the gas given off by the apples will cause the potatoes to sprout wildly.

Other enzymes break down the green pigment chlorophyll, which is replaced by other coloured pigments such as blue, yellow or red.
 

justarius

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#7
moos blues said:
they give em pajamas and they walk around terrorizing naughty teddies in the toy section...

quite frankly i have no idea. but i've seen yellow ones on sale.

and real nasty ones, usually expired, are sold to worms bent on world domination...
OT, but haha... but give me a Holy Hand Grenade anytime. Can you say Hallelujah? :D
 

Amfibius

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#8
zekai, very interesting - thanks for your post. Do you think they treat the bananas with a short acting ethylene antagonist or are the bananas given a dose of ethylene shortly before going on sale?
 

ST1100

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Jun 18, 2003
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#9
Clubsnap is an amazing place.

(i shall go to NTUC and place a few apples under some of the green bananas...)
 

Prismatic

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#10
zekai said:
If apples are stored with pototoes that have not been treated to prevent sprouting, the gas given off by the apples will cause the potatoes to sprout wildly.
Hmmmmm... That will be interesting to see. :think:

I prefer dairy products anyway... Give me a Mad Cow or a Flying Sheep
any day.
 

zekai

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#11
Amfibius said:
zekai, very interesting - thanks for your post. Do you think they treat the bananas with a short acting ethylene antagonist or are the bananas given a dose of ethylene shortly before going on sale?
I have no idea man, which type is use

My recollection is once the fruit is separated from the plant the process is accelerated. (Forgotten a lot of my A level Biology)
 

Adiemus

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#12
so...... i should put green bananas under my armpit....
and 5 mins later..... *ting* .... i have a RIPE banana! :bsmilie:

But seriously, the temperature does play a part in ripening the banana...
 

yeocolin

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#13
zekai said:
I have no idea man, which type is use

My recollection is once the fruit is separated from the plant the process is accelerated. (Forgotten a lot of my A level Biology)
Thanks for sharing! Clubsnap is indeed a wonderful place, with specialists in different fields snapping pictures together. ;)
 

DennisLee

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Jan 6, 2004
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#14
Since fruit is the topic here, does anyone know if the brown coconut and the green ones are of the same species? The brown colored one seemed to me to be like a different species but my friends told me the brown one are the 'unripen' state and the green one the 'ripen' coconut?
 

zekai

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#15
DennisLee said:
Since fruit is the topic here, does anyone know if the brown coconut and the green ones are of the same species? The brown colored one seemed to me to be like a different species but my friends told me the brown one are the 'unripen' state and the green one the 'ripen' coconut?

Brown one is the one that drop off..... so they are the "old bird" coconut.... in term of "ripeness" (not sure if people refer to coconut as ripe?) the brown one is more ripe than the green one.

The green ones are new coconut which we buy to drink the water inside. Dun eat too much of the flesh though... there is a mild laxative property.
 

DennisLee

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#16
The brown one actually are still on the tree, and what i noticed is that all coconut are brown in color on the same tree. I drank the water before it is carbonated and the shell is harder. So it keep me wondering....
 

zekai

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#17
DennisLee said:
The brown one actually are still on the tree, and what i noticed is that all coconut are brown in color on the same tree. I drank the water before it is carbonated and the shell is harder. So it keep me wondering....
dear dennis, you must remove the brown husk to see the coconut inside... LOLz :bsmilie:


Those that we drink from are all plucked not fallen. Those that dropped naturally noramally are the old ones...
 

DennisLee

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#18
No, the one that i drank, is brown in color, is still on the tree. It is carbonated. The green ones u also pluck from the tree is not carbonated. The brown color one, has big coconut, and small coconut, all of the same color.
 

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