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Studies from Jiangnan University in the Area of Oxidoreductases Reported

January 21, 2014

By a News Reporter-Staff News Editor at Life Science Weekly -- Data detailed on Enzymes and Coenzymes have been presented. According to news originating from Jiangsu, People's Republic of China, by NewsRx correspondents, research stated, "Enzymatic polymerization of phenolic compounds (catechol, resorcinol, and hydroquinone) was carried out using laccase. The mechanism of polymerization and the structures of the polymers were evaluated in terms of UV-Vis and Fourier transform infrared spectroscopy."

Our news journalists obtained a quote from the research from Jiangnan University, "The molecular weights of the produced polyphenols were determined with GPC. The results showed that the phenolic monomers firstly turned into quinone intermediates by laccase catalysis. Through further oxidation, the intermediates formed covalent bonds. Finally, catechol units were linked together with ether bonds, and both resorcinol and hydroquinone units were linked together with C-C bonds."

According to the news editors, the research concluded: "The number-average molecular weights of the polyphenols ranged from 1,000 to 1,400 Da (corresponding to the degree of polymerization that varied from 10 to 12) with a lower polydispersity value of about 1.10, showing selective polymerization of phenolic compounds catalyzed by laccase."

For more information on this research see: Laccase-Catalyzed Oxidative Polymerization of Phenolic Compounds. Applied Biochemistry and Biotechnology, 2013;171(7):1673-1680. Applied Biochemistry and Biotechnology can be contacted at: Humana Press Inc, 999 Riverview Drive Suite 208, Totowa, NJ 07512, USA. (Springer -; Applied Biochemistry and Biotechnology -

The news correspondents report that additional information may be obtained from X.J. Sun, Jiangnan Univ, Key Lab Sci & Technol Ecotext, Minist Educ, Wuxi 214122, Jiangsu, People's Republic of China. Additional authors for this research include R.B. Bai, Y. Zhang, Q. Wang, X.R. Fan, J.G. Yuan, L. Cui and P. Wang (see also Enzymes and Coenzymes).

Keywords for this news article include: Asia, Jiangsu, Laccase, Oxidoreductases, Enzymes and Coenzymes, People's Republic of China

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Source: Life Science Weekly

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