humin


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Related to humin: humic acid

humin

[′hyü·mən]
(geology)
(organic chemistry)
An insoluble pigment formed in the acid hydrolysis of a protein that contains tryptophan.
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Humin is a smartphone address book app that enables users managing contacts as per their importance, and not just in alphabetical order.
The dates from section 1 indicate that peat development on Cut Hill began during the early to mid-sixth millennium BC, although there is a disparity between the humic and humin acid fractions.
2%) is presented by humins insoluble in the conditions of standard analysis, and also by individual substances oxidizing with difficulty, which represent components of kerogen organic matter.
The carbon content of humic acid (HAF), fulvic acid (FAF) and humin (HUM) fractions was measured by the dichromate oxidation method (Yeomans and Bremner 1988).
One way in which the relative homogeneity of carbon in rock-art samples may be examined is by dating the soluble humic acid fraction, which can be isolated from the charcoal carbon (often referred to as the humin fraction) during routine pre-treatment for this material.
Board member, Ron Humin said, "Steve is well known in the industry and has done an excellent job as our leading marketing executive.
4+]) cations) nor (2) the refractory fraction of humin (Tyurin 1937; Brcmncr et al.
The fractions typically rank in their resistance to microbial decomposition in the order humic acid > fulvic acid > humin (Qualls 2004).
Table 4: Percentage Composition of Essential Elements in Humic Acid and Fulvic Acid (includes corresponding Graph/Chart) II-13 Solubility of Humin, Humic Acid and Fulvic Acid in Water, Alkali and Acid II-13 Humic Acid Vs Fulvic Acid II-13 Complex Organic Materials II-13 Inorganic Compounds II-14 Seaweed Extracts II-14 Plant Growth Regulators (PGRs) / Plant Growth Hormones II-15 Auxins II-15 Gibberellins II-15 Cytokinins II-15 Derivatives of Chitosan and Chitin II-16 Anti-Transpirants II-16 Free Amino Acids II-16 Biostimulant Application Modes II-17 Biostimulants Usage Segmentation by Crop II-17 Biostimulants in the Turf Industry II-17
Fulvic acids are soluble at all pH values, humic acids are soluble only in strong acid, and humin is insoluble at all pH values (Sala et al.
Chemical fractionation of the humic substances was carried out according to the differential solubility technique, separating the fulvic acid (FAF), the humic acid (HAF), and the humin (HUM) fractions (Swift 1996), after extraction with 0.
The proportions of humin (defined as the alkali-insoluble fraction), humic acid (the alkali-soluble, acid-insoluble fraction), and fulvic acid (the alkali- and acid-soluble fraction) were then determined on a representative subsample (c.