Wheat straw lignin extraction with bio-based solvents using enabling technologies - 04/06/18
, Thomas Dreyer c, Gerhard Schories d, Sven Altenberg e, Lilija Jashina f, Galina Telysheva fBienvenido a EM-consulte, la referencia de los profesionales de la salud.
El acceso al texto completo de este artículo requiere una suscripción.
| páginas | 9 |
| Iconografías | 3 |
| Vídeos | 0 |
| Otros | 0 |
Abstract |
Two bio-based solvents, natural deep eutectic solvents (NaDESs) and γ-valerolactone (GVL), have been used under microwave (MW), and ultrasound (US) irradiation to design an efficient and sustainable process for wheat straw delignification and have been compared with the traditional alkali procedure. Best delignification (45%) was achieved with a three-component NaDES (lactic acid/glycerol/choline chloride) under MW irradiation (at 120 °C in 30 min), with solid/liquid ratio of 1:50. A GVL/water mixture (8:2) also gave an efficient delignification (27%) under US irradiation (40 kHz, 200 W) at 50 °C for 60 min. Analytical pyrolysis (Py) coupled with GC/MS/FID, provides valuable information on the extracts’ chemical profile. DPPH and Folin–Ciocalteu tests highlighted the efficiency of MW- and US-assisted extraction as well as the extracts quality. The highest antioxidant activity for the NaDES extracts was obtained under US irradiation.
El texto completo de este artículo está disponible en PDF.Keywords : Lignin, NaDES, GVL, Ultrasound, Microwaves, Antioxidant activity
Esquema
Vol 21 - N° 6
P. 563-571 - juin 2018 Regresar al número
Artículo precedente
- Controlled pinewood fractionation with supercritical ethanol: A prerequisite toward pinewood conversion into chemicals and biofuels
- Ngoc Q. Bui, Pascal Fongarland, Franck Rataboul, Cyril Dartiguelongue, Nadège Charon, Christophe Vallee, Nadine Essayem
- Some aspects of green solvents
- Katharina Häckl, Werner Kunz
Bienvenido a EM-consulte, la referencia de los profesionales de la salud.
El acceso al texto completo de este artículo requiere una suscripción.
Bienvenido a EM-consulte, la referencia de los profesionales de la salud.
La compra de artículos no está disponible en este momento.
¿Ya suscrito a @@106933@@ revista ?