Please use this identifier to cite or link to this item: https://hdl.handle.net/11147/7620
Title: Comparison of liquid hot water, very dilute acid and alkali treatments for enhancing enzymatic digestibility of hazelnut tree pruning residues
Authors: Sabancı, Kevser
Büyükkileci, Ali Oğuz
Sabancı, Kevser
Büyükkileci, Ali Oğuz
Izmir Institute of Technology. Food Engineering
Keywords: Hazelnut tree pruning residue
Lignocellulosic biomass valorization
Pretreatment
Saccharification
Cellulose
Issue Date: Aug-2018
Publisher: Elsevier Ltd.
Source: Sabancı, K., and Büyükkileci, A. O. (2018). Comparison of liquid hot water, very dilute acid and alkali treatments for enhancing enzymatic digestibility of hazelnut tree pruning residues. Bioresource Technology, 261, 158-165. doi:10.1016/j.biortech.2018.03.136
Abstract: The effect of pretreatments on the composition of the hazelnut tree pruning residue (HTPR) and on the digestibility of the cellulose was investigated. The liquid hot water (LHW) and the very dilute acid (VDA) treatments were effective in solubilizing hemicellulose. The cellulose conversion increased up to around 60% (corresponding to 32–36 g/L glucose) with decreasing hemicellulose concentration in the pretreated HTPR. The alkali treatment provided partial delignification, however, the glucose production was comparably lower. Combining the hemicellulose removal and the delignification effect of different pretreatments in two-stage processes (LHW-alkali and VDA-alkali treatments) enhanced the cellulose concentration in the solids, but not the amount of glucose released in the enzymatic digestion. These results suggested that the hemicellulose was the main barrier against the conversion of cellulose in the LHW and VDA treated HTPR and the glucose in the hydrolysis medium inhibited the cellulase activity, which prevented the complete conversion of cellulose.
URI: https://doi.org/10.1016/j.biortech.2018.03.136
https://hdl.handle.net/11147/7620
ISSN: 0960-8524
0960-8524
Appears in Collections:Food Engineering / Gıda Mühendisliği
PubMed İndeksli Yayınlar Koleksiyonu / PubMed Indexed Publications Collection
Scopus İndeksli Yayınlar Koleksiyonu / Scopus Indexed Publications Collection
WoS İndeksli Yayınlar Koleksiyonu / WoS Indexed Publications Collection

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