The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.

The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.

Date of Patent:
Jul. 15, 2025

Filed:

Jun. 09, 2022
Applicant:

Wisconsin Alumni Research Foundation, Madison, WI (US);

Inventors:

Fachuang Lu, Madison, WI (US);

John Ralph, Madison, WI (US);

Assignee:
Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
C07G 1/00 (2011.01); G01N 21/31 (2006.01);
U.S. Cl.
CPC ...
C07G 1/00 (2013.01); G01N 21/31 (2013.01);
Abstract

A method of completely dissolving lignocellulosic biomass. The method includes the steps of dissolving a sample of biomass in an aqueous solution of strong acid and an amine-thiol to yield a first solution. A method for measuring lignin concentration in biomass via absorbance of the first solution at a wavelength of about 283 nm by comparing the measured absorbance to a standard curve of absorbance values made from solutions of known lignin concentration.


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