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It would seem to be the combination of chlorogenic acid and anthocyanins. What?
From;
http://www.springerlink.com/content/k1515t7nn4870874/
"Abstract The effect of copigmentation of chlorogenic acid with anthocyanins in strawberry and chokeberry juices was investigated. It was found that chlorogenic acid, at concentrations greater than that of anthocyanins, enhanced the colour intensity of these juices. The maximum copigmentation effect in both juices was observed at pH 3.4. In the investigated range of the copigment/pigment ratio, i.e. 1ratio1 to 50ratio1, absorbance increased (DeltaA) linearly with copigment content, DeltaA/g chlorogenic acid was greater in chokeberry than in strawberry juices. In solutions of purified pigments of these fruits, smaller copigmentation effects were observed than in juices under the same conditions, which indicates the participation of natural copigments present in fruits in the copigmentation process."
http://i214.photobucket.com/albums/cc202/belylam/Korean_Strawberry02.jpg
Source(s):
http://www.springerlink.com/content/k1515t7nn4870874/
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Here is a great site explaining Basic Color Theory.
Source(s):
http://www.worqx.com
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Source(s):
http://www.food-info.net/uk/colour/anthocyanin.htm
http://lpi.oregonstate.edu/infocenter/phytochemicals/flavonoids/flavtab2.ht...
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Answered Question
Best Answer Decided by Votes
| June 18, 2009 09:34 PM |
From;
http://www.springerlink.com/content/k1515t7nn4870874/
"Abstract The effect of copigmentation of chlorogenic acid with anthocyanins in strawberry and chokeberry juices was investigated. It was found that chlorogenic acid, at concentrations greater than that of anthocyanins, enhanced the colour intensity of these juices. The maximum copigmentation effect in both juices was observed at pH 3.4. In the investigated range of the copigment/pigment ratio, i.e. 1ratio1 to 50ratio1, absorbance increased (DeltaA) linearly with copigment content, DeltaA/g chlorogenic acid was greater in chokeberry than in strawberry juices. In solutions of purified pigments of these fruits, smaller copigmentation effects were observed than in juices under the same conditions, which indicates the participation of natural copigments present in fruits in the copigmentation process."
http://i214.photobucket.com/albums/cc202/belylam/Korean_Strawberry02.jpg
Source(s):
http://www.springerlink.com/content/k1515t7nn4870874/
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Other Answers (2)
June 18, 2009 09:23 PM
The reason we see any object as a certain color is because the object itself is absorbing every other color, and reflecting only the colors we see. Here is a great site explaining Basic Color Theory.
Source(s):
http://www.worqx.com
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Voted as best: millj
June 18, 2009 09:43 PM
Every fruit and vegetable contain essential nutrients that produces their color. Strawberries contain anthocyanins. Many anthocyanins are red in acidic conditions.
Source(s):
http://www.food-info.net/uk/colour/anthocyanin.htm
http://lpi.oregonstate.edu/infocenter/phytochemicals/flavonoids/flavtab2.ht...
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