Molecules 2006, 11(7), 514-522; doi:10.3390/11070514

Electrocoagulation of Quinone Pigments

1, 1, 2, 3, 2,* email and 1,* email
Received: 12 June 2006; in revised form: 9 July 2006 / Accepted: 12 July 2006 / Published: 14 July 2006
This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
Abstract: Some representative quinones, viz. one naphthoquinone (plumbagin) and five anthraquinones (alizarin, purpurin, chrysazin, emodin, and anthrarufin), were subjected to electrocoagulation. It was found that the rate and extent of coagulation of these compounds appears to correlate with the number and relative position of their phenolic substituent groups, and that all of the coagulated quinones could be recovered. Attempts were then made to electrochemically isolate three quinones, namely plumbagin, morindone and erythrolaccin, from natural sources.
Keywords: Electrocoagulation; quinones; naphthoquinones; anthraquinones; phenolic compounds; alizarin; purpurin; chrysazin; emodin; anthrarufin; plumbagin; morindone; erythrolaccin; seedlac; Plumbago rosea; Morinda angustifolia
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MDPI and ACS Style

Chairungsi, N.; Jumpatong, K.; Suebsakwong, P.; Sengpracha, W.; Phutdhawong, W.; Buddhasukh, D. Electrocoagulation of Quinone Pigments. Molecules 2006, 11, 514-522.

AMA Style

Chairungsi N, Jumpatong K, Suebsakwong P, Sengpracha W, Phutdhawong W, Buddhasukh D. Electrocoagulation of Quinone Pigments. Molecules. 2006; 11(7):514-522.

Chicago/Turabian Style

Chairungsi, Neeranuch; Jumpatong, Kanlaya; Suebsakwong, Patiwat; Sengpracha, Waya; Phutdhawong, Weerachai; Buddhasukh, Duang. 2006. "Electrocoagulation of Quinone Pigments." Molecules 11, no. 7: 514-522.

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