humic acid

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Related to humic: humic acid, humic coal

humic acid

A heteropolymeric mixture of organic molecules from biodegradable humis, peat and soil.

humic acid

the precipitate resulting from the addition of acid to a solution of HUMUS. Black in colour, it is insoluble in acids and organic solvents.

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References in periodicals archive ?

When the humic acid concentration increased, the ALP activity began to increase then decreased again (P < 0.05).

Speciation of nickel and enzyme activities in fluvo-aquic soil under organic amendments treatment

In the first part, the humic and fulvic acid fractions were extracted, purified, lyophilized, and submitted to the spectroscopic and elemental analyzes.

Spectroscopic and elementary characterization of humic substances in organic substrates

Humic substances--made up of carbon and other elements--are the lifeblood for fertile soils.

THE "DIRT" ON GLOBAL WARMING

(ii) To evaluate humic substance chemical composition using solid state [sup.13]C-NMR

Humification and Humic Acid Composition of Suspended Soil in Oligotrophous Environments in South Vietnam

Patsaeva et al., "The "blue shift" of emission maximum and the fluorescence quantum yield as quantitative spectral characteristics of dissolved humic substances," EARSeL eProceedings, vol.

Excitation-Dependent Fluorescence Quantum Yield for Freshwater Chromophoric Dissolved Organic Matter from Northern Russian Lakes

Brunetti, "Characterization, differentiation, and classification of humic substances by fluorescence spectroscopy," Soil Science, vol.

Therapeutic Potential of Fulvic Acid in Chronic Inflammatory Diseases and Diabetes

TABLE 1: Organic carbon (C) content on 0-40 cm soil layer in the fulvic acids (AF), humic acids (AH) and humin (HUM) of humic substances and sum of these three fractions (SOMA) on four situations of soil use in a Humic Dystrupept in southern Brazilian highlands.

HUMIC SUBSTANCES ON A HUMIC DYSTRUPEPT UNDER NATIVE GRASSLAND AND PINE PLANTATION ON DIFFERENT AGES/SUBSTANCIAS HUMICAS EM CAMBISSOLO SOB VEGETACAO NATURAL E PLANTIOS DE PINUS EM DIFERENTES IDADES

"We undertook further mass spectrometry experiments, which suggest that there can indeed be a match between the types of structures we found in the databases and the molecular components of humic systems," Zherebker added.

Substance in brown coal may aid in combating viruses

Quinones are also responsible for the formation of reactive oxygen species (ROS) in humic acids, which are useful for wound healing and have bactericidal properties (Melo et al., 2016).

Effects of Biotechnologically Produced Fulvic Acid on Nutritional Status and Health Indicators of Sprague-Dawley Rats

Conversely, what management activities increase humic acid and organic matter in our soils?