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Title: Biologically produced acid precipitable polymeric lignin

Abstract

A water soluble, acid precipitable polymeric degraded lignin (APPL), having a molecular weight of at least 12,000 daltons, and comprising, by percentage of total weight, at least three times the number of phenolic hydroxyl groups and carboxylic acid groups present in native lignin. The APPL may be modified by chemical oxidation and reduction to increase its phenolic hydroxyl content and reduce the number of its antioxidant inhibitory side chains, thereby improving antioxidant properties.

Inventors:
 [1];  [2]
  1. Moscow, ID
  2. (Moscow, ID)
Issue Date:
Research Org.:
Univ. of Iowa, Iowa City, IA (United States)
OSTI Identifier:
865212
Patent Number(s):
4478747
Assignee:
Genetics International, Inc. (Boston, MA)
DOE Contract Number:  
AS07-80ER10775
Resource Type:
Patent
Country of Publication:
United States
Language:
English
Subject:
biologically; produced; acid; precipitable; polymeric; lignin; water; soluble; degraded; appl; molecular; weight; 12; 000; daltons; comprising; percentage; total; times; phenolic; hydroxyl; carboxylic; native; modified; chemical; oxidation; reduction; increase; content; reduce; antioxidant; inhibitory; chains; improving; properties; phenolic hydroxyl; water soluble; molecular weight; carboxylic acid; total weight; chemical oxidation; precipitable polymeric; acid precipitable; /435/530/

Citation Formats

Crawford, Don L, and Pometto, III, Anthony L. Biologically produced acid precipitable polymeric lignin. United States: N. p., 1984. Web.
Crawford, Don L, & Pometto, III, Anthony L. Biologically produced acid precipitable polymeric lignin. United States.
Crawford, Don L, and Pometto, III, Anthony L. Sun . "Biologically produced acid precipitable polymeric lignin". United States. https://www.osti.gov/servlets/purl/865212.
@article{osti_865212,
title = {Biologically produced acid precipitable polymeric lignin},
author = {Crawford, Don L and Pometto, III, Anthony L.},
abstractNote = {A water soluble, acid precipitable polymeric degraded lignin (APPL), having a molecular weight of at least 12,000 daltons, and comprising, by percentage of total weight, at least three times the number of phenolic hydroxyl groups and carboxylic acid groups present in native lignin. The APPL may be modified by chemical oxidation and reduction to increase its phenolic hydroxyl content and reduce the number of its antioxidant inhibitory side chains, thereby improving antioxidant properties.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {1984},
month = {1}
}

Patent:

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