title: Evaluating pretreatment techniques for converting hazelnut husks to bioethanol.
abstract: This study examined the suitability of husk waste for bioethanol production and compared pretreatment techniques with regard to their efficiencies. Results showed that 4% NaBH4 (90 min) delignified the highest amount of lignin (49.1%) from the structure. The highest xylan solubility (77.9%) was observed when samples were treated with 4% NaOH for 90 min. Pretreatment with NaOH and NaBH4, compared to H2O2 and H2SO4, resulted in selective delignification. The highest glucan to glucose conversion (74.4%) and the highest ethanol yield (52.6 g/kg husks) were observed for samples treated with 2% NaOH for 90 min.
authors.affiliation: Düzce Üniversitesi Orman Fakültesi, Orman Endüstri Mühendisliği Bölümü, Konuralp Yerleşkesi, 81000 Düzce, Turkey. yalcincopur@duzce.edu.tr
authors.forename: Yalçın
authors.initials: Y
authors.lastname: Çöpür
authors.forename: Ayhan
authors.initials: A
authors.lastname: Tozluoglu
authors.forename: Melek
authors.initials: M
authors.lastname: Özkan
mesh_terms: D056804:Biofuels / Q000382:microbiology*; D001894:Borohydrides / Q000737:chemistry*; D002480:Cellulase / Q000737:chemistry*; D031211:Corylus / Q000737:chemistry* / Q000382:microbiology*; D000432:Methanol / Q000302:isolation & purification / Q000378:metabolism*; D009754:Nuts / Q000737:chemistry / Q000382:microbiology; D012441:Saccharomyces cerevisiae / Q000378:metabolism*; D001617:beta-Glucosidase / Q000737:chemistry*
chemical_list: D056804:Biofuels; D001894:Borohydrides; C025364:sodium borohydride; D001617:beta-Glucosidase; D002480:Cellulase; D000432:Methanol