Formation of yellow, orange, and red pig
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Hiroko Kosugi; Tetsuta Kato; Kiyomi Kikugawa
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Article
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1987
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Elsevier Science
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English
โ 736 KB
The reaction of four to eight carbon straight-chain alk-2-enals with 2-thiobarbituric acid (TBA) produced yellow 455-nm-, orange 495-nm-, and red 532-nm-absorbing pigments depending upon the reaction conditions. The 1:1 reaction of the aldehydes with TBA in 15% acetic acid at 100 degrees C produced