論文

2016年8月

Development of a Simple Nonbiological Method for Converting Lignin-Derived Aromatics into Nonaromatic Polymeric Substances with Fluorescent Activity

ACS SUSTAINABLE CHEMISTRY & ENGINEERING
  • Noriyuki Iwabuchi
  • ,
  • Yuki Sakano
  • ,
  • Hajime Takiguchi
  • ,
  • Hayato Takihara
  • ,
  • Michio Sunairi
  • ,
  • Hiroshi Matsufuji

4
8
開始ページ
4411
終了ページ
4416
記述言語
英語
掲載種別
研究論文(学術雑誌)
DOI
10.1021/acssuschemeng.6b01009
出版者・発行元
AMER CHEMICAL SOC

We recently reported that Pseudomonas sp. ITH-SA-1 can transform the lignin-derived aromatic compound syringaldehyde (SYAL) into nonaromatic polymeric substances with fluorescent activity (NAPSFA). NAPSFA are particularly rare organic substances that fluoresce despite the absence of aromatic rings. In this study, we developed a simple method for producing NAPSFA using a nonbiological process. Incubation of the SYAL metabolite 3-O-methyl gallate (3-MGA) produced by Pseudomonas sp. ITH-SA-1 with Marine Broth (MB) or Luria-Bertani broth (LB) produced fluorescence even in the absence of bacteria, suggesting that fluorescent substances were produced from 3-MGA by a nonbiological process. 3-MGA reacted with tryptone and peptone, which are the primary nitrogen and phosphate sources in MB and LB, to produce the fluorescent substances. The fluorescent substances produced by the reaction of 3-MGA with tryptone exhibited excitation and emission peaks at 370 and 505 nm, respectively, which are nearly identical to those of NAPSFA (365/498 nm). The average molecular weight of the fluorescent substances (4.2 kDa) was lower than that of NAPSFA (7.2 kDa). ATR-FTIR and NMR analyses revealed that the molecules contained no aromatic rings, similar to NAPSFA. Our results demonstrate that nonaromatic fluorescent substances can be synthesized via a simple chemical reaction.

Web of Science ® 被引用回数 : 1

リンク情報
DOI
https://doi.org/10.1021/acssuschemeng.6b01009
Web of Science
https://gateway.webofknowledge.com/gateway/Gateway.cgi?GWVersion=2&SrcAuth=JSTA_CEL&SrcApp=J_Gate_JST&DestLinkType=FullRecord&KeyUT=WOS:000380869800041&DestApp=WOS_CPL
ID情報
  • DOI : 10.1021/acssuschemeng.6b01009
  • ISSN : 2168-0485
  • Web of Science ID : WOS:000380869800041

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