2007-08-06 18:05:12 · 7 answers · asked by annie tt 1 in Science & Mathematics ➔ Biology
I think there may be a couple of possibilities....the orange does not oxidise with the air to go off like an uncovered orange would...there are enzymes in fruit etc like those in an apple that make it go borwn after being cut...these may not react .
The other thing also could be the fungi than make it go off cannot get into the orange or settle on the skin and not be able to grow on it like an uncovered one....having this layer over the top protects it and stops or at least helps prevent opneings for fungi ( moulds)
I remember very vaguely doing something similar at university, but we also put a weak disinfectant over the surface to kill them....I don;t remember very much at all but I think it was a microbiology course....so I'm leaning towards to the fungi thing more.
2007-08-06 18:25:11 · answer #1 · answered by mareeclara 7 · 2⤊ 0⤋
If you left an ordinary unpeeled orange for a week it wouldn't necessarily spoil either.
2007-08-07 01:13:53 · answer #2 · answered by Loulabelle 4 · 0⤊ 0⤋
the paint didn't affect your orange (except its color, you painted it, right?) because the skin was thick enough not to allow the chemicals of the paint contribute to the early spoilage of your orange.
2007-08-07 11:24:38 · answer #3 · answered by erika 2 · 0⤊ 0⤋
Paint acted as an insulator and didn't allow it react with atmosphere thus preserving it. Great idea though may have come about accidentally.
2007-08-07 01:11:14 · answer #4 · answered by brkshandilya 7 · 0⤊ 0⤋
What did you paint it with? If it was with something that sealed it from the air it would have prevented spoilage.
2007-08-07 02:49:14 · answer #5 · answered by Frankie S 3 · 0⤊ 0⤋
the air cannot get to it.
2007-08-07 01:08:41 · answer #6 · answered by rose_merrick 7 · 0⤊ 0⤋
try eating it then you'll find out.
2007-08-07 01:10:56 · answer #7 · answered by Shaq Diesel 5 · 0⤊ 1⤋