Patent · US Active

Photobiological hydrogen production with switchable photosystem-II designer algae

US8653331B2 · kind B2 · utility

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1References
18Claims
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Inventor

Key dates

Filing dateDec 29, 2009
Grant dateFeb 18, 2014
Priority date—
Expiry dateMay 22, 2032

Classification

  • Technology area (CPC C)Chemistry; Metallurgy
  • CPC primaryC07K14/405
  • WIPO fieldBiotechnology
  • WIPO sectorChemistry

Abstract

A process for enhanced photobiological H2 production using transgenic alga. The process includes inducing exogenous genes in a transgenic alga by manipulating selected environmental factors. In one embodiment inducing production of an exogenous gene uncouples H2 production from existing mechanisms that would downregulate H2 production in the absence of the exogenous gene. In other embodiments inducing an exogenous gene triggers a cascade of metabolic changes that increase H2 production. In some embodiments the transgenic alga are rendered non-regenerative by inducing exogenous transgenes for proton channel polypeptides that are targeted to specific algal membranes.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.