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Aspartame molecule

Aspartame molecule

A602/0030

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Credit

DR TIM EVANS / SCIENCE PHOTO LIBRARY DR TIM EVANS / SCIENCE PHOTO LIBRARY

Caption

Aspartame. Molecular model of the artificial sweetener aspartame. Atoms, represented as spheres, are colour-coded; carbon (blue), hydrogen (white), oxygen (red) and nitrogen (dark blue). Its chemical name is L-alpha-aspartyl-L- phenylalanine methyl ester. Aspartame is about 180 times sweeter than sugar. It has no energy value and is therefore used as a sugar substitute in diet food, drinks and sweeteners. It contains the amino acid phenylalanine and must carry a warning on the product packaging. This is because people who suffer from the condition phenylketonuria cannot metabolise phenylalanine, and over- consumption can lead to mental retardation.

Release details

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