The Chemistry Flower Colour

Love, flowers and chemistry…

6:30 AM, 14th February 2013
Love, flowers and chemistry…

SINGAPORE: Roses are the most popular flowers in the world. The reason for popularity of the rose flower may be its wide variety in terms of colour, size, fragrance and other attributes. The rose has been a symbol of love and the most popular gift across the world especially for Valentine’s Day. The colour and even number of roses carry symbolic meanings. For eg – one symbolizes love at first sight, two for mutual feelings, three for “I Love You” and so on …

Where do roses get the beautiful colours from?

Well, the answer for this is “The Chemistry of Flower Colour.” Without chemistry it would have been impossible for the flower to have such beautiful colours. The pigment molecules - carotenoids and anthocyanins - give flowers the colours we see. Pigments are chemical compounds that absorb or take in light, especially in the visible ‘rainbow’ wavelengths we can see. Here’s how it works - whatever colours a specific pigment does not absorb are reflected back into our eye. That is the colour we see.

In flowers, the carotenoid pigments, generally absorb all the light wavelengths except oranges and yellows, which is why we see tiger lilies as orange and daffodils as yellow. Another group of flower pigments, anthocyanins, generally absorb all the light wavelengths except blues and purple, which is why we see those colours in flowers.

“LOVE” - actually is chemicals racing internally

Scientists say there is increase in levels of hormones neutrophins and dopamine when cupid strikes. When couples fall in love, outwardly they experience dizziness, flushed face, sweaty palms and most prominent of all a wildly beating heart. But, internally, the feeling of love is due to chemicals racing around the brain and body. The feelings, researchers found are due to dopamine, norepinephrine and phenylethylamine that human beings release. Moreover, couples should not worry when the initial racing of the heart is reduced with time. Scientists have discovered that hormonal changes lead to such the switch from lust to cuddles. Also when couples move to a stable phase of the relationship, new set of hormones take over.

© WOC News



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