New packaging to alert shoppers to fresh fish.
Smart shoppers with a good eye for colour can now guarantee themselves a fresh catch of fish, scientists revealed today.
New packaging containing a sensor that changes colour when seafood spoils has been designed to hit supermarket shelves.
The sensor responds to the presence of basic volatiles responsible for the characteristic rotten fish odour.
Containing a pH sensitive dye, it changes colour from (more…)
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Non-artificial colourings is available in all colours - from yellow to orange, pink and green, even brown and black. The only colour missing from this list has been blue.
To meet this demand of consumers who are attaching greater importance to natural colourings, even in confectionery. Wild has developed a non-artificial blue colorant that it claims gives products a brilliant colour.
“Confectionery is all about colour,” said a spokesperson for Wild.
“Colourful sweets appeal to the predominantly young consumer, awaken the appetite and set the taste buds tingling.”
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Glow-in-the-dark materials that shine with the whole range of visible colors, and can even produce white light, have been developed by Japanese researchers.
Phosphorescent materials absorb energy when exposed to light and emit that energy as light again over long time periods.
For some time scientist have known how to produce blue and green phosphorescent compounds that would last for hours however producing red that last more than just a few minutes eluded them. Until now that is. The team from Ryukoku University, Kyoto solved the mystery by adding red dye to green and blue phosphors.
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