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- Getting another organism to take away the byproducts that hinder hydrogen production
- combining dark fermentation and photo fermentation - Combined fermentation
- getting an organism to consume the acetate
- containment - making the bacteria dependent on each other to survive
- syntrophic exchange (http://www.pnas.org/content/111/20/E2149.short?rss=1)
- down-regulate the pathways except for the hydrogen production pathway
- protein scaffolding to increase metabolic flux
- making recombinant proteins
- one bacteria degrading proteins/complex sugars that the other can use for production (http://www.sciencedirect.com.ezproxyberklee.flo.org/science/article/pii/S0960852414017301)
- metabolic wiring: bacteria in a closed system produce molecules that regulate the growth of the other bacteria http://2014.igem.org/Team:Edinburgh/project/population
Engineering a Synthetic Dual-Organism System for Hydrogen Production - http://www.ncbi.nlm.nih.gov/pmc/articles/PMC2663214/
conversion of biomass into formate, which can subsequently be processed into hydrogen by Escherichia coli.
Important hydrogen production review article: http://www.ncbi.nlm.nih.gov/pmc/articles/PMC3757257/
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