Algae Co-cultivation with PPFM Bacteria for Biofuel Yield
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Solution Overview
Problem
Current methods for producing biofuels from non-foodstuffs like algae and cellulosic materials face challenges in achieving significant yields, making microbial fermentation processes commercially unfeasible due to difficulties in algae growth and chemical production.
Innovation Solution
Cultivating algae in the presence of Pink-Pigmented Facultative Methylotrophs (PPFM) bacteria, such as Methylobacterium mesophilicum, to stimulate growth and increase production of valuable chemicals like biofuels, vitamin B12, and neutral lipids.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If non-foodstuffs like algae are used as raw materials for microbial fermentation to produce biofuels, then the pressure on food prices is reduced, but the yields are insufficient and the process is not commercially feasible
Solution Approach 1:
The patent introduces PPFM bacteria as intermediary organisms that facilitate algae growth and biofuel production. These bacteria act as mediators between the algae and the fermentation process, secreting substances that stimulate algal growth and improve biofuel yields, thereby making the overall process commercially feasible
Solution Approach 2:
The patent modifies cultivation parameters by co-culturing algae with PPFM bacteria, changing the biological environment from single-organism to multi-organism system. This parameter change results in enhanced algae growth rates and increased biofuel production yields
2Productivity
If conventional single-organism cultivation is used, then the process is simple, but algae growth rates and chemical production are limited
Solution Approach 1:
The patent merges algae cultivation with PPFM bacterial culture into a single co-cultivation system. This combination allows the benefits of both organisms to synergistically enhance each other, resulting in faster algae growth rates and increased chemical production while maintaining a unified cultivation approach
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
The co-cultivation of algae with PPFM bacteria significantly enhances algae growth rates, biomass production, and biofuel yields, reducing the time to harvest and increasing the yield of neutral lipids, making the process more commercially viable and sustainable.
Implementation Method 1
PPFM can be manipulated or selected to produce substances, such as vitamin B12, which when secreted onto land plants afford land plants, such as lettuce, to have enhanced nutritional value for humans
Implementation Method 2
algae are capable of producing, whether naturally or by genetic engineering. Examples of such chemicals include, but are not limited to biofuels, e.g. neutral lipids (oils), ethanol and butane as well as DHA and astaxanthin
Data Source
AI summary
A method of increasing yield of cultivated algae, which entails the step of cultivating one or more species of algae in the presence of one or more species of PPFM bacteria, for at least a portion of the algae cultivation.