Lexic.us

Definition of Humin

1. Noun. A black humic substance that is not soluble in water.

Definition of Humin

1. n. A bitter, brownish yellow, amorphous substance, extracted from vegetable mold, and also produced by the action of acids on certain sugars and carbohydrates; -- called also humic acid, ulmin, gein, ulmic or geic acid, etc.

Definition of Humin

1. Noun. The part of the organic matter in soil that does not dissolve in dilute alkali ¹

¹ Source: wiktionary.com

Medical Definition of Humin

1. A bitter, brownish yellow, amorphous substance, extracted from vegetable mold, and also produced by the action of acids on certain sugars and carbohydrates. Synonym: humic acid, ulmin, gein, ulmic or geic acid, etc. Origin: L. Humus the earth, ground. Source: Websters Dictionary (01 Mar 1998)

Lexicographical Neighbors of Humin

Literary usage of Humin

Below you will find example usage of this term as found in modern and/or classical literature:

1. Journal of the American Chemical Society by American Chemical Society (1915)
"They have further demonstrated that the humin nitrogen of i g. of pure gliadin was increased from 0.59 to 0.94 per cent, by the presence of 0.25 g. of pure ..."

2. The Chemical Constitution of the Proteins by Robert Henry Aders Plimmer (1917)
"Samuely [1902] suggested that the humin formed from proteins was due to a secondary reaction between amino acids and carbohydrates, and obtained melanins ..."

3. Chemistry of the Proteids by Gustav Mann (1906)
"humin Substances or Melanoidins The term 'humin' was introduced in 1838 by Berzelius,3 as a substitute for the expressions ..."

4. Principles of Organic and Physiological Chemistry by Carl Löwig (1853)
"humin. The portion of humin-substance, which j£uni;n is insoluble in alkalies, is dark-colored, and is converted, by the influence of strong alkalies into ..."

5. Soils: Their Formation, Properties, Composition, and Relations to Climate by Eugene Woldemar Hilgard (1921)
"... in the course of time rendered comparatively inert, and unavailable to vegetation until nitrified. Progressive Changes.—The natural neutral humin and ..."

6. A Text-book of Organic Chemistry for Students of Medicine and Biology by Elmer Verner McCollum (1920)
"The filtrate from the " humin " is concentrated to 100 ce, cooled to 20°, 5 grams of sulphuric acid added and then 30 cc of a solution containing 20 grams ..."

Other Resources: