Efficient succinic acid production using a biochar-treated textile waste hydrolysate in an in situ fibrous bed bioreactor

Research output: Journal Publications and Reviews (RGC: 21, 22, 62)21_Publication in refereed journalNot applicablepeer-review

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Author(s)

  • Ming Zhang
  • Jiewen Luo
  • Shicheng Zhang
  • Xiao Yang
  • Avanthi Deshani Igalavithana
  • Yong Sik Ok
  • Daniel C.W. Tsang

Related Research Unit(s)

Detail(s)

Original languageEnglish
Article number107249
Journal / PublicationBiochemical Engineering Journal
Volume149
Early online date29 May 2019
Publication statusE-pub ahead of print - 29 May 2019

Abstract

Textile waste contains biodegradable fraction which can be used as an alternative feedstock for succinic acid production. The feasibility of bioconversion of biochar-treated textile waste hydrolysate into succinic acid was evaluated. A substrate loading of 9% was applied to hydrolyze mixed textile waste and the resultant glucose-rich hydrolysate with dyestuff was collected after enzymatic hydrolysis. Biochar from different pyrolysis temperatures (400–700 °C)and different dosages of the selected biochar (1–5%)were applied to remove colorants. The results showed that biochar had a good performance at a dosage of 2 w/w % on removal of colorant inhibitors. There was no negative effect observed during the subsequent fermentation. After optimization of fermentation media in shake flasks, the resultant succinic acid titer reached 19.6 g/L with a SA yield of 0.76 g/g, supplemented with 30 g/L tryptone. The in situ fibrous bed bioreactor (isFBB)can further improve SA titer, up to 28.8 g/L corresponding to a yield of 0.61 g/g without pH control. Furthermore, a shorter lag phase during succinic acid fermentation in isFBB was observed. It can be concluded that a novel textile waste-based biorefinery approach for succinic acid production aided by biochar sorption was successfully developed.

Research Area(s)

  • Biochar, In situ fibrous bed bioreactor, Succinic acid, Textile waste, Yarrowia lipolytica

Citation Format(s)

Efficient succinic acid production using a biochar-treated textile waste hydrolysate in an in situ fibrous bed bioreactor. / Li, Xiaotong; Zhang, Ming; Luo, Jiewen; Zhang, Shicheng; Yang, Xiao; Igalavithana, Avanthi Deshani; Ok, Yong Sik; Tsang, Daniel C.W.; Lin, Carol Sze Ki.

In: Biochemical Engineering Journal, Vol. 149, 107249, 15.09.2019.

Research output: Journal Publications and Reviews (RGC: 21, 22, 62)21_Publication in refereed journalNot applicablepeer-review