PMID- 35820558
OWN - NLM
STAT- MEDLINE
DCOM- 20220816
LR  - 20220816
IS  - 1873-2976 (Electronic)
IS  - 0960-8524 (Linking)
VI  - 360
DP  - 2022 Sep
TI  - Biological denitrification potential of cellulase-producing Cupriavidus sp. ZY7 
      and denitrifying Aquabacterium sp. XL4 at low carbon-to-nitrogen ratio: 
      Performance and synergistic properties.
PG  - 127600
LID - S0960-8524(22)00929-4 [pii]
LID - 10.1016/j.biortech.2022.127600 [doi]
AB  - This study emphasizes on the cellulase production characteristics of strain ZY7 
      and its collaboration with nitrate-dependent ferrous oxidizing (NFO) strain XL4 
      to achieve efficient denitrification at low carbon-to-nitrogen (C/N) ratio. 
      Results indicated that the denitrification efficiency increased from 65.47 to 
      97.99% at 24 h after co-culture at C/N of 1.0. Three-dimensional fluorescence 
      excitation-emission matrix (3D-EEM) showed significant changes in the intensity 
      of soluble microbial products (SMP), fulvic-like materials, and aromatic proteins 
      after co-culture. Bio-precipitates were characterized by Scanning electron 
      microscope (SEM), Fourier transform infrared spectrometer (FTIR), and X-ray 
      diffraction (XRD), which showed that cellulose structure was disrupted and the 
      metabolites were potential carbon source for denitrification. In addition, 
      cellulase activity suggested that the hydrolysis of beta-1,4-glycosidic bonds and 
      oligosaccharides may be the rate-limiting steps in cellulose degradation. This 
      work promoted the understanding of denitrification characteristics of co-culture 
      and expanded the application of cellulose degrading bacteria in sewage treatment.
CI  - Copyright (c) 2022 Elsevier Ltd. All rights reserved.
FAU - Zhai, Zhenyu
AU  - Zhai Z
AD  - School of Environmental and Municipal Engineering, Xi'an University of 
      Architecture and Technology, Xi'an 710055, China; Shaanxi Key Laboratory of 
      Environmental Engineering, Xi'an University of Architecture and Technology, Xi'an 
      710055, China.
FAU - Su, Junfeng
AU  - Su J
AD  - School of Environmental and Municipal Engineering, Xi'an University of 
      Architecture and Technology, Xi'an 710055, China; Shaanxi Key Laboratory of 
      Environmental Engineering, Xi'an University of Architecture and Technology, Xi'an 
      710055, China. Electronic address: sjf1977518@sina.com.
FAU - Ali, Amjad
AU  - Ali A
AD  - School of Environmental and Municipal Engineering, Xi'an University of 
      Architecture and Technology, Xi'an 710055, China; Shaanxi Key Laboratory of 
      Environmental Engineering, Xi'an University of Architecture and Technology, Xi'an 
      710055, China.
FAU - Xu, Liang
AU  - Xu L
AD  - School of Environmental and Municipal Engineering, Xi'an University of 
      Architecture and Technology, Xi'an 710055, China; Shaanxi Key Laboratory of 
      Environmental Engineering, Xi'an University of Architecture and Technology, Xi'an 
      710055, China.
FAU - Wahid, Fazli
AU  - Wahid F
AD  - Department of Agriculture, The University of Swabi, Swabi 23561, Pakistan.
LA  - eng
PT  - Journal Article
DEP - 20220709
PL  - England
TA  - Bioresour Technol
JT  - Bioresource technology
JID - 9889523
RN  - 0 (Nitrates)
RN  - 7440-44-0 (Carbon)
RN  - 9004-34-6 (Cellulose)
RN  - EC 3.2.1.4 (Cellulase)
RN  - N762921K75 (Nitrogen)
SB  - IM
MH  - Bioreactors/microbiology
MH  - Carbon/chemistry
MH  - *Cellulase/metabolism
MH  - Cellulose
MH  - *Cupriavidus/metabolism
MH  - Denitrification
MH  - Nitrates/metabolism
MH  - Nitrogen/chemistry
OTO - NOTNLM
OT  - Cellulase
OT  - Cellulose degradation
OT  - Denitrification
OT  - Low C/N ratio
OT  - Synergistic effect
EDAT- 2022/07/13 06:00
MHDA- 2022/08/17 06:00
CRDT- 2022/07/12 19:25
PHST- 2022/06/21 00:00 [received]
PHST- 2022/07/05 00:00 [revised]
PHST- 2022/07/06 00:00 [accepted]
PHST- 2022/07/13 06:00 [pubmed]
PHST- 2022/08/17 06:00 [medline]
PHST- 2022/07/12 19:25 [entrez]
AID - S0960-8524(22)00929-4 [pii]
AID - 10.1016/j.biortech.2022.127600 [doi]
PST - ppublish
SO  - Bioresour Technol. 2022 Sep;360:127600. doi: 10.1016/j.biortech.2022.127600. Epub 
      2022 Jul 9.