Transgenic Biomass Composition for Higher Sugar Conversion
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Solution Overview
Problem
The existing methods for converting plant biomass into biofuels and chemical intermediates are limited by the recalcitrance of the lignocellulose matrix, leading to inefficient conversion of solar energy stored in plants into usable forms.
Innovation Solution
Introducing exogenous nucleic acids into plant cells of species like sorghum, Miscanthus, and sugarcane to alter biomass composition, enhancing sugar content, availability, and conversion efficiency through regulatory regions linked to specific polypeptides or inhibiting endogenous nucleic acids, thereby improving the processing efficiency of plant materials.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of manufacture
If direct combustion or conventional biochemical processes are used to convert plant biomass into energy or biofuels, then the process is relatively simple, but the conversion efficiency of solar energy stored in plants is very low
Solution Approach 1:
The patent modifies the chemical composition parameters of plant biomass by altering lignin content, cellulose content, and sugar composition through genetic engineering. These parameter changes make the biomass more suitable for efficient conversion processes, thereby improving conversion efficiency without significantly complicating the manufacturing process
Solution Approach 2:
The patent performs preliminary modification of the biomass composition before the actual energy conversion process. By pre-altering the lignocellulose structure and increasing sugar content through genetic engineering, the biomass is prepared in advance to enable more efficient conversion, avoiding the need for complex pretreatment steps during the conversion process itself
2Stability of the object's composition
If the lignocellulose matrix structure is maintained in conventional plants, then the plant structure is stable, but the recalcitrance of the matrix limits conversion efficiency
Solution Approach 1:
The patent applies local quality changes by specifically modifying certain components of the lignocellulose matrix (such as reducing lignin content or altering hemicellulose composition) while maintaining the overall structural integrity of the plant. This localized modification improves conversion efficiency in specific regions of the biomass without compromising the overall structural stability of the plant
3Device complexity
If only small fractions of solar energy are converted into biofuels through conventional processes, then the existing industrial processes are simple, but the amount of liquid transportation fuel obtained is limited
Solution Approach 1:
The patent creates transgenic plant copies that inherit modified genetic traits for improved biomass composition. By propagating these genetically modified plants, the system produces large quantities of biomass with enhanced conversion properties, thereby increasing the total amount of biofuel that can be produced without proportionally increasing process complexity
Data Source
AI summary
Methods and materials for modulating biomass composition in plants are disclosed. For example, nucleic acids encoding biomass composition-modulating polypeptides are disclosed as well as methods for using such nucleic acids to transform plant cells. Also disclosed are plants having altered biomass composition and plant products produced from plants having altered biomass composition.