Review
Engineering, Environmental
Mengjie Ma, Tianyi An, Xinyi Zou, Mabruk Adams, Chongjun Chen
Summary: This article examines the influence of humic substances (HSs) on the performance and mechanism of the anammox process. It was found that low concentrations of HSs stimulate anammox activity, while high concentrations cause inhibition. Further research is needed to explore the microscopic mechanisms of how additional HSs affect anammox in actual wastewater.
JOURNAL OF WATER PROCESS ENGINEERING
(2023)
Article
Forestry
Yu Tan, Kaijun Yang, Zhenfeng Xu, Li Zhang, Han Li, Chengming You, Bo Tan
Summary: Soil fauna play vital roles in litter humification in cold forests, with their contributions varying among species and seasons.
Article
Agronomy
Konstantin Korsakov, Alexey Stepanov, Lev Pozdnyakov, Olga Yakimenko
Summary: The effects of three types of urea fertilizers on soil N transformation processes were examined in a laboratory experiment. It was found that humate-coated urea (U_HA) showed advantages in reducing N losses, increasing N-NH4 content, and decreasing N2O emissions compared to conventional urea. U_HA also promoted soil respiration and microbial activity, making it a promising tool for reducing N losses in soils.
Article
Microbiology
Qiao Jin, Yayu Zhang, Qiuxia Wang, Meijia Li, Hai Sun, Ning Liu, Linlin Zhang, Yue Zhang, Zhengbo Liu
Summary: The addition of potassium fulvic acid (BSFA) and potassium humate (KHM) increased soil nutrients and reshaped microbial functions, providing a theoretical foundation for soil improvement and biological control of Panax ginseng diseases.
MICROBIOLOGICAL RESEARCH
(2022)
Article
Biochemistry & Molecular Biology
Attila Csicsor, Etelka Tombacz
Summary: Humic substances have been studied for a long time and recent research has revealed that they have antioxidant properties. The extraction method used affects not only the physico-chemical properties of the substances but also their free radical scavenging activity.
Article
Environmental Sciences
Yiming Fang, Hiroshi Sakai
Summary: UV-activated persulfate showed more efficient treatment of humic substances compared to hydrogen peroxide and direct irradiation, with treatment effectiveness depending on persulfate concentrations and UV wavelengths. Lower molecular weight components were more susceptible to degradation, eventually leading to effective removal of humic substances.
ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH
(2022)
Review
Pharmacology & Pharmacy
David C. Socol
Summary: This clinical review presents the current understanding of the antiviral features of humic substances (HS) based on humeomics data. It includes historical studies and clinically relevant data to provide a comprehensive understanding of the potential antiviral effects of humic substances and to prepare for their clinical application.
FRONTIERS IN PHARMACOLOGY
(2023)
Article
Plant Sciences
M. A. A. Nassar, Samia S. El-Magharby, Nada S. Ibrahim, Essam E. Kandil, Nader R. Abdelsalam
Summary: An experiment was conducted to determine the response of sugar beet to soil application of K-humate rates and foliar application of biostimulants under salt stress. The results showed that soil application of K-humate at the rate of 24 kg/ha with foliar spray of FA + HP significantly increased the yield, growth, and quality characteristics of sugar beet under soil salinity.
JOURNAL OF SOIL SCIENCE AND PLANT NUTRITION
(2023)
Article
Green & Sustainable Science & Technology
Marco A. Jimenez-Gonzalez, Sana Boubehziz, Ana M. Alvarez, Pilar Carral, Maria Jose Marques-Perez, Sameh K. Abd-Elmabod, Gonzalo Almendros
Summary: The increase in atmospheric CO2 levels and desertification due to soil degradation is a major concern for humanity. Soil management techniques are being widely used for soil protection. The Sierra de Guadarrama National Park in Spain, which suffered severe deforestation, was reforested 50 years ago. A recent evaluation of the restored area found a significant increase in carbon stocks in the topsoil, as well as an increased level of transformation of organic carbon into resilient humic structures. Reforestation activities have led to the accumulation of high-quality organic carbon.
Article
Green & Sustainable Science & Technology
Jin-Jin Li, Hong-Bing Ji, Wei-Jie Wang, Fei Dong, Chuan Yin, Li Zhang, Rui Li, Jie Gao
Summary: In this study, 13C CP/MAS NMR was used to investigate the composition of humic acids (HA), fulvic acids (FA), and humin (HM) in soil profiles in karst areas. The research found that the content of HA and FA was low, indicating low humification degree. The transformation mechanism among functional groups of humus was also studied, revealing rare transformation between FA and HM. This study provides important scientific basis for understanding the formation and transformation of soil humus in karst areas.
Article
Engineering, Environmental
Yuchao Shao, Menggang Bao, Weizhong Huo, Rong Ye, Muhammad Ajmal, Wenjing Lu
Summary: This study compared the humification potential of hydrochar, hydrothermal solution, and their mixture under alkaline hydrothermal conditions. The results showed that hydrochar was the main source of hydrothermal humic acid (HHA), while hydrothermal solution had a smaller contribution. The pathways of alkaline hydrothermal humification of hydrochar were also revealed through in-depth analysis.
CHEMICAL ENGINEERING JOURNAL
(2023)
Article
Engineering, Environmental
Wenqing Luo, Xin Zhao, Gongting Wang, Zedong Teng, Yali Guo, Xiaonan Ji, Wei Hu, Min Li
Summary: The effects of humic acids (HA) and fulvic acids (FA) on the fate of Cd in anaerobic environment were investigated. The results showed that HA and FA could promote the reductive dissolution of Cd-bearing ferrihydrite and the formation of vivianite. HA was better than FA in immobilizing Cd.
JOURNAL OF HAZARDOUS MATERIALS
(2023)
Article
Agronomy
Juan Hu, Wenming Zhang, Ahmed Sharaf, Wei Fan, Ling Sun, Jimei Sun, Lixia Wang, Jinggui Wu
Summary: The properties of soil humus amended with organic wastes derived humus-like substances have a significant impact on the functional groups present in the soil. Different organic waste sources, such as tree leaves, fodder grass, and sheep manure, influence the structures of soil humic acid and fulvic acid differently.
ARCHIVES OF AGRONOMY AND SOIL SCIENCE
(2021)
Article
Environmental Sciences
Mao Gao, Fan Tang, Kaidi Wang, Fanjian Zeng, Yan Wang, Guangming Tian
Summary: The study investigates the hyperaccumulating mechanism of heavy metals activated or passivated by fulvic acid and humic acid, as well as the plant response triggered by these substances. Results show an increase in available Cd content in soil and Cd accumulation in plants after application of different sources of FA and HA, with the most effective being CFA, DFA, and PFA. Additionally, applications of PFA and PHA significantly increase Cd accumulation in plants compared to the blank control group.
JOURNAL OF ENVIRONMENTAL MANAGEMENT
(2022)
Article
Agronomy
Perrine Klein, Lorelei Chauvey, Jean Kallerhoff, Eric Pinelli, Marie Morard, Jerome Silvestre
Summary: The study revealed biostimulant, genotoxic, and cytotoxic effects of four commercialized wood-based products using the Vicia faba Micronucleus Assay, showing no genotoxicity or cytotoxicity, and one stimulant providing protective effects against contaminants. The technique can be successfully applied to other important crops and is valuable for assessing the effects of new biostimulants or organics.
Article
Immunology
M. J. Finberg, G. L. Muntingh, C. E. J. van Rensburg
INFLAMMOPHARMACOLOGY
(2015)
Article
Chemistry, Inorganic & Nuclear
M. J. Nell, J. M. Wagener, J. R. Zeevaart, E. Kilian, M. A. Mamo, M. Layh, M. Coyanis, C. E. J. van Rensburg
APPLIED RADIATION AND ISOTOPES
(2009)
Article
Chemistry, Medicinal
Tzu-Shean Feng, Eric M. Guantai, Margo J. Nell, Constance E. J. van Rensburg, Heinrich C. Hoppe, Kelly Chibale
BIOORGANIC & MEDICINAL CHEMISTRY LETTERS
(2011)
Article
Environmental Sciences
I. E. J. Barnhoorn, M. S. Bornman, C. Jansen van Rensburg, H. Bouwman
Article
Chemistry, Medicinal
Justin J. Gandy, Johanna P. Meeding, Jacques R. Snyman, Constance E. Jansen van Rensburg
DRUG DEVELOPMENT RESEARCH
(2010)
Article
Chemistry, Medicinal
Riaz Sabi, Pieter Vrey, Constance E. Jansen van Rensburg
DRUG DEVELOPMENT RESEARCH
(2012)
Article
Cell Biology
Constance E. Jansen van Rensburg, Pieter J. Naude
Article
Biochemistry & Molecular Biology
Ulrike E. I. Horvath, Liliana Dobrzanska, Christoph E. Strasser, Wilna Bouwer (nee Potgieter), Gisela Joone, Constance E. Jansen van Rensburg, Stephanie Cronje, Helgard G. Raubenheimer
JOURNAL OF INORGANIC BIOCHEMISTRY
(2012)
Article
Chemistry, Inorganic & Nuclear
Haris Bjelosevic, Ilia A. Guzei, Lara C. Spencer, Tina Persson, Frederik H. Kriel, Raymond Hewer, Margo J. Nell, Jiri Gut, Constance E. J. van Rensburg, Philip J. Rosenthal, Judy Coates, James Darkwa, Sofi K. C. Elmroth
JOURNAL OF ORGANOMETALLIC CHEMISTRY
(2012)
Article
Agriculture, Dairy & Animal Science
W. J. Steyn, N. H. Casey, C. Jansen van Rensburg
SOUTH AFRICAN JOURNAL OF ANIMAL SCIENCE
(2012)
Article
Pharmacology & Pharmacy
Justin John Gandy, Johanna Petronella Meeding, Jacques Rene Snyman, Constance Elizabeth Jansen van Rensburg
CLINICAL PHARMACOLOGY-ADVANCES AND APPLICATIONS
(2012)
Article
Polymer Science
L. L. Komane, E. H. Mukaya, E. W. Neuse, C. E. J. van Rensburg
JOURNAL OF INORGANIC AND ORGANOMETALLIC POLYMERS AND MATERIALS
(2008)
Article
Chemistry, Medicinal
V. Steenkamp, A. C. Fernandes, C. E. J. van Rensburg
Article
Chemistry, Medicinal
Aman Mahajan, Susan Yeh, Margo Nell, Constance E. J. van Rensburg, Kelly Chibale
BIOORGANIC & MEDICINAL CHEMISTRY LETTERS
(2007)