Results 231 to 240 of about 1,424,781 (281)

Enhanced degradation of extracellular polymeric substances by yeast in activated sludge to achieve sludge reduction.

Bioresource Technology, 2023
Candida Tropicalis was used to improve the dewaterability of activated sludge (AS) and reduce its biomass by degrading EPS in AS. The protein, polysaccharide, and hydrophilic amino acids in EPS decreased by 54.50, 29.20, and 61.01%, respectively ...
Pengfei Wan, Ying Liu, Quandi Zhang, Li Jiang, Heping Chen, W. Lv   +5 more
semanticscholar   +1 more source

The change in shape of the pH-activity curve of acid phosphatase in the liver and spleen of mice after intraperitoneal administration of macromolecular substances

Biochemical Pharmacology, 1962
A. Meijer
exaly   +2 more sources

Proteins, polysaccharides and their derivatives as macromolecular antioxidant supplements: A review of in vitro screening methods and strategies.

International Journal of Biological Macromolecules, 2022
Owing to the implications of oxidative stress in disease and ageing process, antioxidant research has been a research hotspot. Antioxidants are derived from among the active components of plant and animal extracts, including macromolecular proteins ...
Yajuan Chen, Qinlu Lin, Jianqiang Wang, Jianfei Mu, Ying Liang   +4 more
semanticscholar   +1 more source

Molecular transformation of dissolved organic matter and formation pathway of humic substances in dredged sludge under aerobic composting.

Bioresource Technology, 2022
Using Fourier transform-ion cyclotron resonance mass spectrometry (FT-ICR MS) and molecular reaction network analysis, this study investigated molecular transformation of dissolved organic matter (DOM) and formation pathway of humic substances (HS) in ...
Siying Cai, Ming Liu, Yu Zhang, Aibin Hu, Weijun Zhang, Dongsheng Wang   +5 more
semanticscholar   +1 more source

Effects of exogenous substances on the characteristics of low-salt tilapia surimi gel.

Food Chemistry
This study investigated the enhancement of freshwater surimi product quality by applying various exogenous substances to low-salt tilapia surimi gels prepared using microwave and ultrasound techniques. Using single-factor experiments and response surface
Xiaoyan Liu, Ziqian Chen, Yuehua Ye, Min Qian, Baiqiao Ou, Jinpei Wen, Weidong Bai, Hao Jiang   +7 more
semanticscholar   +1 more source

Synthesis of Macromolecular Substances by Addition Polymerization

2001
As already explained, polymerization reactions can proceed by various mechanisms and can be catalyzed by initiators of different kinds. For addition polymerization of single compounds, initiation of chains may occur via radical, cationic, anionic, or so-called coordinative-acting initiators, but some monomers will not polymerize by more than one ...
Dietrich Braun, Harald Cherdron, Helmut Ritter   +2 more
openaire   +1 more source

Transport of per-/polyfluoroalkyl substances from leachate to groundwater as affected by dissolved organic matter in landfills.

Environmental Research
The transport of per- and polyfluoroalkyl substances (PFAS) from landfill leachate to surrounding soil and groundwater poses a threat to human health via the food chain or drinking water.
Jia Li, Haoqun Sha, Weijiang Liu, Ying Yuan, Ganghui Zhu, Fanhua Meng, Beidou Xi, W. Tan   +7 more
semanticscholar   +1 more source

Clearance of macromolecular and particulate substances from the cerebrospinal fluid system of the rat

Journal of Neurosurgery, 1979
✓ Arachnoid villi in the intracranial dural sinuses constitute the principal sites for absorption of proteins and particulates from the cerebrospinal fluid (CSF) system. Although arachnoid villi in the rat are morphologically less complex than those found in other mammals, their resistance to CSF outflow, as assessed by a graded series of constant flow
J D, Mann, A B, Butler, R N, Johnson, N H, Bass   +3 more
openaire   +2 more sources

Macromolecular material (humic substance) in the water column and sediments

Marine Chemistry, 1992
Abstract The progress during the past 10–15 years in the studies of organic macromolecules (humic substances, HS) in seawater and sediments is reviewed. The review describes the advances in the characterization of seawater and sedimentary HS, HS formation models, studies on the geochemical role of marine HS, and future research needs.
openaire   +1 more source

Macromolecular changes of humic substances induced by interaction with organic acids

European Journal of Soil Science, 1996
Summary Two different humic materials, one from a forest soil and the other from wormcasts, were used to study the influence of mineral and organic acids on the conformational properties of humic substances. The macromolecular changes were followed by low pressure gel permeation chromatography after titrating ...
PICCOLO A, NARDI, SERENELLA, CONCHERI, GIUSEPPE   +2 more
openaire   +1 more source