Publication: Enhanced enzymatic digestibility of water lettuce by liquid hot water pretreatment
0
0
Issued Date
2022
Resource Type
Language
eng
File Type
application/pdf
ISSN
2589014X
Rights Holder(s)
Scopus
Bibliographic Citation
Membranes. Vol 12, No.8 (2022)
Suggested Citation
Champadang O., Boonsombuti A., Luengnaruemitchai A. Enhanced enzymatic digestibility of water lettuce by liquid hot water pretreatment. Membranes. Vol 12, No.8 (2022). doi:10.1016/j.biteb.2022.101100 Retrieved from: https://hdl.handle.net/20.500.14740/9233
Author(s)
Abstract
Liquid hot water (LHW) pretreatment conditions were optimized from various severities using response surface methodology to convert water lettuce (WL; Pistia stratiotes) to fermentable sugars to enhance the enzymatic digestibility of pretreated WL. The LHW pretreatment was performed using a 2% (w/v) WL loading over a temperature range of 152–208 °C and pretreatment times of 9–51 min. The optimal conditions for the LHW pretreatment were determined to be 190.7 °C for 51 min [a severity factor (log R0) of 4.38], which gave the highest total reducing sugar yield (17.26 g/L) and a high removal level of hemicellulose (68.32%) in the subsequent cellulase digestion. The physical structure of WL after pretreatment revealed changes to the WL structure that increased its susceptibility to attack by enzymes; an increased crystallinity, surface area, and total pore volume together with a lower hemicellulose and lignin content compared to the untreated WL. © 2022 Elsevier Ltd