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Diversity in the Mechanisms of Humin Formation during Composting with Different Materials.
Environmental Science and Technology, 2019Humins (HMs) play a very important role in various environmental processes and are crucial for regulating global carbon and nitrogen cycles in various ecosystems.
Xintong Gao +7 more
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Environmental Science & Technology, 1990
Humin is defined as the fraction of humic materials that is insoluble in an aqueous solution at any pH value. The nature of humin has remained something of an enigma. Despite the fact that it typically comprises 50% or more of the organic carbon in soil, sediment, and peat, it has been the subject of comparatively little research interest.
James A. Rice, Patrick MacCarthy
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Humin is defined as the fraction of humic materials that is insoluble in an aqueous solution at any pH value. The nature of humin has remained something of an enigma. Despite the fact that it typically comprises 50% or more of the organic carbon in soil, sediment, and peat, it has been the subject of comparatively little research interest.
James A. Rice, Patrick MacCarthy
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2016
Humins are undesired solids that form during the aqueous processing of cellulose-derived carbohydrates. Aldol addition/condensation involving intermediates with multiple keto groups is one mechanistic pathway by which humins can form. The Gibbs free energy changes for aldol addition/condensation reactions in the early stages of humin formation have ...
Jacob Heltzel +2 more
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Humins are undesired solids that form during the aqueous processing of cellulose-derived carbohydrates. Aldol addition/condensation involving intermediates with multiple keto groups is one mechanistic pathway by which humins can form. The Gibbs free energy changes for aldol addition/condensation reactions in the early stages of humin formation have ...
Jacob Heltzel +2 more
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Disaggregation and characterization of humin
Science of The Total Environment, 1992Abstract Humin was extracted from a stream sediment and a peat using the methyl isobutyl ketone (MIBK) partitioning method. The humin samples were then disaggregated into their component ‘building blocks’ by an extension of the MIBK procedure that avoids degradative loss of any of the constituents of humin.
James A. Rice, Patrick MacCarthy
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Sorption of radionuclideson peat humin
Journal of Radioanalytical and Nuclear Chemistry, 2006A humin sample, isolated from organic soil (peat) was used to investigate its interaction with different kinds of radioelements in batch systems. The sorption of the radionuclides 110mAg, 60Co and 65Zn by peat humin was studied under different conditions.
A. A. Helal +3 more
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Soil Biology and Biochemistry, 1991
Abstract The boron trifluoride-methanol transesterification method was used to depolymerize soil humin preparations from three contrasted soil types in order to examine the presence of biopolyester moieties in these non-colloidal soil humic fractions.
G. Almendros, J. Sanz
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Abstract The boron trifluoride-methanol transesterification method was used to depolymerize soil humin preparations from three contrasted soil types in order to examine the presence of biopolyester moieties in these non-colloidal soil humic fractions.
G. Almendros, J. Sanz
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Design of an ontology for humin substances
Proceedings of the 14th International Conference on Information Integration and Web-based Applications & Services, 2012Knowledge can be used for description, sorting and searching of useful data. Knowledge, on the other hand, may be very narrowly connected with a person, who may leave a company. Such situation can be avoided by using of ontology as a tool of knowledge engineering or in general as a tool for knowledge representation.The paper presents on ontology design
Tyl, P. +3 more
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Amico acids analysis: the humin problem
Journal of Chromatography A, 1972Abstract To minimize the development of coloured condensation products (humin) from proteins (expecially glycoproteins) undergoing acid hydrolysis, the inclusion of mercaptosuccinic acid or oxalic acid in the hydrolysate is proposed. The presence of either of these compounds was shown to retard the production of dark brown precipitates and the ...
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Spektroskopische Untersuchungen an Humins�uren
Die Naturwissenschaften, 19601. Das Gebiet des ultravioletten und sichtbaren Lichtes (250 bis 700 mμ) hat sich fur die Strukturaufklarung von Huminsauren als unbrauchbar erwiesen. Es gelingt nicht einmal, Huminsauren verschiedener Herkunft voneinander zu unterscheiden. Auch wenn die Huminsauregemische getrennt werden, sind die Spektren uncharakteristisch.
Ziechmann, W., Scholz, H.
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Evolution process of humins derived from cellulose by a humin extraction approach
Green ChemistryA novel strategy was developed to extract cellulose-derived humins, thereby disclosing their structural evolution process for the first time.
Xianda Li +3 more
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