Assessing the effect of protic ionic liquid pretreatment of Pinus radiata from different perspectives including solvent-water ratio

SEMERCİ N. I., SOYSAL K., YAĞLIKÇI S., GÖKÇE Y.

JOURNAL OF WOOD CHEMISTRY AND TECHNOLOGY, cilt.41, sa.6, ss.236-248, 2021 (SCI-Expanded) identifier identifier

  • Yayın Türü: Makale / Tam Makale
  • Cilt numarası: 41 Sayı: 6
  • Basım Tarihi: 2021
  • Doi Numarası: 10.1080/02773813.2021.1976797
  • Dergi Adı: JOURNAL OF WOOD CHEMISTRY AND TECHNOLOGY
  • Derginin Tarandığı İndeksler: Science Citation Index Expanded (SCI-EXPANDED), Scopus, Academic Search Premier, Aerospace Database, CAB Abstracts, Chemical Abstracts Core, Chimica, Communication Abstracts, Compendex, INSPEC, Metadex, Veterinary Science Database, Civil Engineering Abstracts
  • Sayfa Sayıları: ss.236-248
  • Anahtar Kelimeler: Pine, protic ionic liquid, lignocellulosic biomass, lignin, biorefinery, ENZYMATIC-HYDROLYSIS, LIGNOCELLULOSIC BIOMASS, FERMENTABLE SUGARS, LOBLOLLY-PINE, LIGNIN, DEPOLYMERIZATION, CELLULOSE, COST, MISCANTHUS, EXTRACTION
  • Ankara Üniversitesi Adresli: Evet

Özet

In this study, pine (Pinus radiata) pretreated with PIL, triethylammonium hydrogen sulfate (TEAHSO(4)) at different water-PIL ratios (1:9, 1:4 and 3:7), biomass loadings (10-60%) and biomass particle sizes (<1.18 mm, 1.18-1.76 mm and 1.76-2.40 mm) was enzymatically transformed into fermentable sugars. TEAHSO(4) removed 52% lignin with pretreatment at 170 degrees C, 20% loading and 1:4 water-PIL ratio for 3 h, from biomass with the largest particle size. Reducing the water content of PIL solution enhanced delignification performance of PIL under the same conditions; cellulose content of the biomass increased 2-fold by extracting 59% lignin from pine. Compositional changes were supported with saccharification and characterization analyses. Utilizing 1:4 water-PIL ratio introduced more constructive pretreatment conditions with respect to the changes in lignin particle size distribution. Attaining favorable compositional changes for pine as a recalcitrant softwood motivated the contribution of PILs to IL based biorefineries.