Title:
METHOD FOR LIQUID-SURFACE FLOATING CULTURE OF MICROALGAE USING MICROALGAE ON BOTTOM SURFACE AS SEED ALGAE, METHOD FOR PRODUCING ALGAL BIOMASS, AND MICROALGA
Document Type and Number:
WIPO Patent Application WO/2015/041349
Kind Code:
A1
Abstract:
The present invention addresses the problem of providing a method for the liquid-surface floating culture of microalgae without supplying new seed algae. Microalgae on a bottom surface are used as the seed algae. The present invention provides a method for culturing microalgae, said method including: a first culture step in which the microalgae are cultured in a culture medium inside an incubator, a biofilm is formed on the liquid surface of the culture medium, and the microalgae are retained on the bottom surface of the incubator; a step in which at least a portion of the biofilm formed on the liquid surface in the first culture step is collected, and at least some of the microalgae on the bottom surface are left in the incubator; and a second culture step in which the microalgae left on the bottom surface are cultured in the same incubator, and a biofilm is formed on the liquid surface of the culture medium. The present invention further provides a novel microalga that can form a biofilm on a liquid surface.
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Inventors:
KANEHARA HIDEYUKI (JP)
MATSUNAGA TADASHI (JP)
TANAKA TSUYOSHI (JP)
TANAKA MASAYOSHI (JP)
MUTO MASAKI (JP)
MATSUNAGA TADASHI (JP)
TANAKA TSUYOSHI (JP)
TANAKA MASAYOSHI (JP)
MUTO MASAKI (JP)
Application Number:
PCT/JP2014/074957
Publication Date:
March 26, 2015
Filing Date:
September 19, 2014
Export Citation:
Assignee:
FUJIFILM CORP (JP)
International Classes:
C12N1/12; C12P7/64; C12N15/09
Domestic Patent References:
| WO2013161832A1 | 2013-10-31 |
Foreign References:
| US20090087889A1 | 2009-04-02 | |||
| JP2007277046A | 2007-10-25 | |||
| JP2012085539A | 2012-05-10 |
Other References:
EROGLU ET AL.: "Hydrocarbon productivities in different Botryococcus strains: comparative methods in product quantification", JOURNAL OF APPLIED PHYCOLOGY, vol. 23, 2011, pages 763 - 775
CHRISTENSON ET AL.: "Production and harvesting of microalgae for wastewater treatment, biofuels, and bioproducts", BIOTECHNOLOGY ADVANCES, vol. 29, 2011, pages 686 - 702
OZKAN ET AL.: "Reduction of water and energy requirement of algae cultivation using an algae biofilm photobioreactor", BIORESOURCE TECHNOLOGY, vol. 114, 2012, pages 542 - 548
FUJII ET AL.: "Isolation of folate-producing microalgae, from oligotrophic ponds in Yamaguchi", JOURNAL OF APPLIED MICROBIOLOGY, vol. 108, 2010, JAPAN, pages 1421 - 1429
CHRISTENSON ET AL.: "Production and harvesting of microalgae for wastewater treatment, biofuels, and bioproducts", BIOTECHNOLOGY ADVANCES, vol. 29, 2011, pages 686 - 702
OZKAN ET AL.: "Reduction of water and energy requirement of algae cultivation using an algae biofilm photobioreactor", BIORESOURCE TECHNOLOGY, vol. 114, 2012, pages 542 - 548
FUJII ET AL.: "Isolation of folate-producing microalgae, from oligotrophic ponds in Yamaguchi", JOURNAL OF APPLIED MICROBIOLOGY, vol. 108, 2010, JAPAN, pages 1421 - 1429
Attorney, Agent or Firm:
SIKs & Co. (JP)
Patent business corporation patent firm Sykes (JP)
Patent business corporation patent firm Sykes (JP)
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