eprintid: 15306
rev_number: 2
eprint_status: archive
userid: 1
dir: disk0/00/01/53/06
datestamp: 2023-11-10 03:29:55
lastmod: 2023-11-10 03:29:55
status_changed: 2023-11-10 01:59:10
type: article
metadata_visibility: show
creators_name: Majeed, Z.
creators_name: Ajab, Z.
creators_name: Guan, Q.
creators_name: Abbasi, A.Z.
creators_name: Mahmood, Q.
creators_name: Mahnashi, M.H.
creators_name: Alyami, B.A.A.
creators_name: Alqarni, A.O.
creators_name: Alqahtani, Y.S.
creators_name: Mansor, N.
title: Reduction in Lignin Peroxidase Activity Revealed by Effects of Lignin Content in Urea Crosslinked Starch under Aerobic Biodegradation in Soil
ispublished: pub
keywords: Activation energy; Biodegradation; Catalyst activity; Composite materials; Crosslinking; Enzyme activity; Lignin; Metabolism; Reaction rates; Soils; Starch,  reductions; Aerobic biodegradation; Biocomposite; Biodegradation in soil; Cross-linked starch; Enzyme assays; Lignin contents; Lignin peroxidase; Michaelis-Menten; Urea crosslinked starch, Urea
note: cited By 1
abstract: This study characterized the lignin peroxidase (LiP) activity of soil via an enzyme assay to determine the reaction rates and activation energies for 5 wt, 10 wt, 15 wt, and 20 wt lignin loads in urea crosslinked starch biocomposites. The results revealed that a mixed mode of LiP inhibition occurred after the soil was mixed with these biocomposites with different loads of lignin. Loading of lignin at 5 wt and 10 wt lignin resulted in higher values of catalytic activity of LiP:-39.58 and 49.14 µM h-1 g-1 soil, respectively. In comparison, with higher loading of lignin at 15 wt and 20 wt, decreases in the catalytic activity of LiP were found and were 28.72 to 37.25 µM h-1 g-1 soil, respectively. The activation energy of LiP increased approximately 1.11-to 1.22-fold when 15 and 20 wt of lignin was loaded in biocomposites. Research findings established the possibility of unfavorable binding of the LiP to lignin with an increase in the load of lignin, possibly due to the complex structure of intact lignin and presence of inhibitory biodegradation products of lignin accumulates during lignin biodegradation in biocomposites. It was concluded that higher lignin contents (15 wt and 20 wt) were effective in reducing the activity of the soil LiP. Hence, higher lignin content possibly protects against losses of lignin, while acting as a filler in the formulation of biocomposites. © 2021, North Carolina State University. All rights reserved.
date: 2021
publisher: North Carolina State University
official_url: https://www.scopus.com/inward/record.uri?eid=2-s2.0-85137600380&doi=10.15376%2fbiores.16.1.1940-1948&partnerID=40&md5=415e58e8c7165f3a401e0134dda82ce7
id_number: 10.15376/biores.16.1.1940-1948
full_text_status: none
publication: BioResources
volume: 16
number: 1
pagerange: 1940-1948
refereed: TRUE
issn: 19302126
citation:   Majeed, Z. and Ajab, Z. and Guan, Q. and Abbasi, A.Z. and Mahmood, Q. and Mahnashi, M.H. and Alyami, B.A.A. and Alqarni, A.O. and Alqahtani, Y.S. and Mansor, N.  (2021) Reduction in Lignin Peroxidase Activity Revealed by Effects of Lignin Content in Urea Crosslinked Starch under Aerobic Biodegradation in Soil.  BioResources, 16 (1).  pp. 1940-1948.  ISSN 19302126