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Bioresour Technol

Title:		Degradative solvent extraction of cyanobacteria: From reaction kinetics to potential organic matter evolution mechanism
Author(s):		Chen Z; Yang S; Zhang L; Duan F;
Address:		"Engineering Technology-Research Center of Anhui Education Department for Energy Saving and Pollutant Control in Metallurgical Process, School of Energy and Environment, Anhui University of Technology, Maanshan 243002, Anhui Province, PR China. Engineering Technology-Research Center of Anhui Education Department for Energy Saving and Pollutant Control in Metallurgical Process, School of Energy and Environment, Anhui University of Technology, Maanshan 243002, Anhui Province, PR China. Electronic address: zhang_lh81@126.com"
Journal Title:		Bioresour Technol
Year:		2023
Volume:		20230722
Issue:
Page Number:		129547 -
DOI:		10.1016/j.biortech.2023.129547
ISSN/ISBN:		1873-2976 (Electronic) 0960-8524 (Linking)
Abstract:		"This study proposed a new continuous lumped reaction kinetics model to accurately reveal the control mechanism of cyanobacteria at each stage of degradative solvent extraction and discussed the potential evolution mechanism of organic matter. Results showed that degradation solvent extraction successfully separated nitrogen and phosphorus from cyanobacteria. The solute has high carbon and volatile contents, is almost ash-free, and forms a phosphorus-rich residue. The lowest fitting degree of the continuous lumped reaction model kinetics was 94.5%, suggesting that this model worked well. The depolymerization of the residue dominated between 200 and 350 degrees C, whereas solute decomposition dominated at 400 degrees C. Nitrogen-containing compounds, which originate from protein decarboxylation or deamination to generate amides, are the main components of the solute, and amino acids react with reducing sugars to generate nitrogen heterocyclic compounds, which are useful for preparing nitrogen-containing chemicals"
Keywords:		Kinetics *Cyanobacteria/metabolism Nitrogen/metabolism Solvents/metabolism Phosphorus/metabolism Extracted product Nitrogen-containing chemicals Reaction model Separation Solute;
Notes:		"MedlineChen, Zongqi Yang, Shoumeng Zhang, Lihui Duan, Feng eng England 2023/07/25 Bioresour Technol. 2023 Oct; 386:129547. doi: 10.1016/j.biortech.2023.129547. Epub 2023 Jul 22"