Modified algae for improved biofuel productivity
US9290782B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Mar 26, 2012 |
| Grant date | Mar 22, 2016 |
| Priority date | — |
| Expiry date | Mar 26, 2032 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC12Y302/01068
- WIPO fieldBiotechnology
- WIPO sectorChemistry
Abstract
Methods, processes, and systems for the production of lipids and starch from modified algae are disclosed. In one embodiment, the modified algae over-expresses isoamylase and accumulates much higher amounts of starch than unmodified algae. In some embodiments, the modified algae comprises one or more copies of an isoamylase expression construct. In one embodiment, the modified algae is a sta7 Chlamydomonas reinhardtii mutant with a starchless phenotype that has been complemented with one or more copies of the wild-type genomic STA7 isoamylase gene construct. The complemented, modified algae accumulates much greater amount of starch than an unmodified algae and may be used to produce large amounts of starch and/or lipids.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.