Recycling and chemistry of the lignocellulosic biomass for cotton stalks to primer value-added products

Document Type : Original Article

Authors

1 Chemistry department, Faculty of Science, Cairo University, Giza, Egypt

2 Cotton Research Institute, Agricultural Research Center, Giza, Egypt

Abstract

Abstract
This study aims to recycle the lignocellulosic biomass (LB) of Egyptian cotton stalks as organic plant waste to produce a primer for value-added economic products. The cellulose content of Giza 86 and Giza 90 (32.37 % and 30.79 %), respectively, results in the conversion of promising raw materials into many economic products. The extracted cellulose was investigated by X-ray diffraction which confirms the efficient extraction process when compared to the X-ray spectrum to the standard sample. It was then depolymerized to glucose using molten ZnCl2 in the presence of hydrochloric acid. Glucose was dehydrated to 5-Hydroxymethylfurfural (5-HMF) by a one-pot reaction using dimethylsulfoxide (DMSO) as a solvent and ferric chloride hexahydrate as a catalyst. The as-formed 5-HMF was then analysed by (FT-IR, HPLC, and 1H & 13C-NMR). The spectra of the prepared 5-HMF sample were compared with that of the spectra of the standard 5-HMF sample, and this comparison showed a quite parallelism between the prepared and the standard samples, confirming that 5-hydroxymethylfurfural was successfully produced.

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History

  • Receive Date: 30 June 2022
  • Revise Date: 10 September 2022
  • Accept Date: 17 October 2022

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