Algal Biomass Quantification via NMR Spectroscopy
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Solution Overview
Problem
Quantitative determination of the complex biomolecular composition of algal biomass has been challenging, requiring indirect methods that often lead to inaccurate or incomplete results and cannot be fully mass balanced or carbon balanced.
Innovation Solution
A direct and quantitative approach using solvent-lipid extraction followed by nuclear magnetic resonance (NMR) spectroscopy to quantify the biomolecular composition of algal biomass, including lipids, proteins, and carbohydrates, without the need for digestion of biomass.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If indirect methods are used to determine biomolecular composition, then the analysis can be performed with simpler equipment, but the accuracy and completeness of results deteriorate
Solution Approach 1:
The patent replaces complex mechanical/digestion-based analysis systems with nuclear magnetic resonance (NMR) spectroscopy. NMR provides direct, quantitative measurement of biomolecular composition (lipids, proteins, carbohydrates) without requiring biomass digestion or indirect chemical analysis, thereby improving accuracy while maintaining manageable device complexity through a single sophisticated instrument.
2Productivity
If traditional extraction and analysis methods are used, then the process can be simpler, but the time required and cost increase
Solution Approach 1:
The patent implements continuous lipid extraction using solvents, eliminating the need for repeated batch processing. The NMR spectrometer then continuously analyzes the extracted lipids to determine composition. This continuous operation significantly reduces processing time compared to traditional discontinuous extraction and analysis methods, while maintaining cost-effectiveness through efficient resource utilization.
3Reliability
If indirect methods are used for biomass analysis, then equipment requirements can be reduced, but mass balance and carbon balance cannot be achieved
Solution Approach 1:
The patent replaces indirect chemical analysis methods with direct NMR spectroscopy measurement. NMR provides quantitative data on all major biomolecular components (lipids, proteins, carbohydrates) in their native state, enabling complete mass balance and carbon balance calculations. This substitution achieves high reliability without requiring multiple complex preprocessing and analysis steps.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
This approach provides accurate, cost-effective, and time-efficient determination of biomolecular content, overcoming the limitations of previous methods by ensuring full mass and carbon balance.
Implementation Method 1
the biomolecular concentration of the algal biomass is quantified using nuclear magnetic resonance spectroscopy
Implementation Method 2
Lipids are extracted from at least a portion of the harvested algal biomass using solvent-lipid extraction
Data Source
AI summary
A method and system for direct quantification of the concentration of biomolecules in algal biomass. The biomolecules include lipids, proteins, and carbohydrates. An algae slurry is cultivated within a cultivation vessel, and algal biomass is harvested therefrom. A portion of biomass is analyzed using solvent-lipid analysis to extract lipids and nuclear magnetic resonance spectroscopy is used to quantify the biomolecular concentration of the biomass.