Patent Application for Modified Microorganisms Consuming Xylose

ChangeBridge: Patent Apps - Biotech (C12N)

Published March 26th, 2026

Detected March 27th, 2026

Summary

The USPTO has published a patent application (US20260085280A1) for methods of modifying microorganisms to increase xylose consumption. The application, filed by MARA RENEWABLES CORPORATION, details processes for enhancing microbial growth on hemicellulosic carbohydrates.

View original document View source feed page

What changed

This document is a published patent application (US20260085280A1) from the USPTO, detailing methods for adapting and optimizing microorganisms for growth in hemicellulosic derived carbohydrates, specifically focusing on increased xylose consumption. The application describes providing microorganisms with multiple copies of specific nucleic acid sequences, culturing them, and repeating these steps to achieve higher xylose consumption rates and reduced xylitol production compared to unmodified controls.

While this is a patent application and not a regulatory rule, it signifies potential future innovations in biotechnology and industrial fermentation. Companies in the pharmaceutical, food manufacturing, and biotechnology sectors should be aware of this filing as it may impact intellectual property landscapes and future product development in areas related to sustainable carbohydrate utilization and microbial engineering. No immediate compliance actions are required, but monitoring patent filings can inform R&D strategy and competitive analysis.

Source document (simplified)

← USPTO Patent Applications

ADAPTATION AND PROCESS OPTIMIZATION OF MICROORGANISMS FOR GROWTH IN HEMICELLULOSIC DERIVED CARBOHYDRATES

Application US20260085280A1 Kind: A1 Mar 26, 2026

Assignee

MARA RENEWABLES CORPORATION

Inventors

Kimberly Hyson, Nathalia Florez, Denise Muise, Alexandra Merkx-Jacques, Dorothy Dennis, David Woodhall, Zachary Sun, Roberto E. Armenta

Abstract

Provided herein are methods of making microorganisms modified for increased xylose consumption as compared to unmodified microorganisms. The methods include providing xylose-consuming microorganisms comprising two or more copies of a nucleic acid sequence encoding xylose isomerase and two or more copies of a nucleic acid sequence encoding a xylose kinase, culturing the microorganisms in medium containing xylose and harvesting a portion of the microorganisms. These steps are repeated multiple times. The microorganisms are then isolated. The isolated microorganisms have increased xylose consumption rates compared to control xylose-consuming microorganisms. Also provided are a population of microorganisms made by the provided methods. Methods of culturing the population of microorganisms and methods of reducing xylitol production in cultures comprising the population of microorganisms are provided.