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Related Experiment Video

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Multipronged Phenotyping Approaches to Characterize Sugarcane Root Systems

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Published on: August 17, 2022

Relationship between sugarcane culm and leaf biomass composition and saccharification efficiency.

K Hodgson-Kratky¹, G Papa^2,3, A Rodriguez^2,4

¹1Queensland Alliance for Agriculture and Food Innovation, University of Queensland, Brisbane, QLD 4072 Australia.

Biotechnology for Biofuels

|October 23, 2019

Summary

Improving biofuel production requires optimizing sugarcane for easier conversion. Key factors for efficient saccharification include reducing syringyl/guaiacyl ratio, acid-insoluble lignin, and xylan, while increasing acid-soluble lignin and glucan content.

Keywords:

Biofuel Enzymatic hydrolysis Lignin Lignocellulosic biomass Pretreatment S/G ratio Saccharification efficiency Sugarcane Xylan

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High-throughput Saccharification Assay for Lignocellulosic Materials

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High-throughput Screening of Recalcitrance Variations in Lignocellulosic Biomass: Total Lignin, Lignin Monomers, and Enzymatic Sugar Release

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High-throughput Saccharification Assay for Lignocellulosic Materials

High-throughput Saccharification Assay for Lignocellulosic Materials

Published on: July 3, 2011

Area of Science:

Biomass conversion and biofuel production
Plant biotechnology and genetic improvement
Renewable energy feedstock optimization

Background:

Lignocellulosic biomass is a promising renewable feedstock for biofuels.
Current biomass conversion methods are inefficient and costly due to cell wall recalcitrance.
Modifying biomass composition can enhance sugar release for efficient breakdown.

Purpose of the Study:

Identify key biomass components influencing sugarcane cell wall recalcitrance.
Target specific components for selection in sugarcane varieties.
Improve the efficiency of converting sugarcane biomass into fermentable sugars.

Main Methods:

Assessed biomass composition (glucan, xylan, lignin) in seven sugarcane genotypes.
Evaluated saccharification efficiency after dilute acid, hydrothermal, and ionic liquid pretreatments.
Utilized path analysis to determine associations between biomass components and glucan conversion.

Main Results:

Ionic liquid pretreatment showed highest glucan conversion (42% in culm, 63.5% in leaf).
Leaf tissues exhibited approximately 1.5-fold higher glucan conversion than culm tissues.
Syringyl/guaiacyl ratio, acid-insoluble lignin (AIL), and xylan negatively impacted glucan conversion; acid-soluble lignin (ASL) and glucan content positively influenced it.

Conclusions:

Sugarcane breeding should focus on reducing S/G ratio, AIL, and xylan content.
Increasing ASL and glucan content is crucial for enhanced saccharification.
These targeted improvements will facilitate the development of sugarcane varieties for bioenergy applications.