A fractionation of wheat straw components in a two-step chemical pretreatment is proposed. Hemicelluloses were hydrolysed by dilute sulphuric acid, allowing a substantial recovery of crystalline xylose. Lignin was removed by means of a mild alkaline/oxidative solubilisation procedure, involving no sulphite or chlorine and its derivatives. The use of diluted reagents and relatively low temperatures, was both cheap and environmentally friendly. The pretreated material was nearly pure cellulose, whose enzymic hydrolysis proceeded fast and with high yields, leading to high glucose syrups of remarkable purity.

Complete and efficient enzymic hydrolysis of pretreated wheat straw

CURRELI, NICOLETTA;RESCIGNO, ANTONIO;SANJUST, ENRICO
2002-01-01

Abstract

A fractionation of wheat straw components in a two-step chemical pretreatment is proposed. Hemicelluloses were hydrolysed by dilute sulphuric acid, allowing a substantial recovery of crystalline xylose. Lignin was removed by means of a mild alkaline/oxidative solubilisation procedure, involving no sulphite or chlorine and its derivatives. The use of diluted reagents and relatively low temperatures, was both cheap and environmentally friendly. The pretreated material was nearly pure cellulose, whose enzymic hydrolysis proceeded fast and with high yields, leading to high glucose syrups of remarkable purity.
File in questo prodotto:
Non ci sono file associati a questo prodotto.

I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.

Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/11584/100361
 Attenzione

Attenzione! I dati visualizzati non sono stati sottoposti a validazione da parte dell'ateneo

Citazioni
  • ???jsp.display-item.citation.pmc??? ND
  • Scopus 81
  • ???jsp.display-item.citation.isi??? 74
social impact