Title:
MICROALGAE CULTIVATION DEVICE
Document Type and Number:
WIPO Patent Application WO/2011/065445
Kind Code:
A1
Abstract:
Provided is a microalgae cultivation device capable of uniformly and efficiently supplying the light quality and photons required for the photosynthesis of algae, inside a cultivation device. The microalgae cultivation device is provided with an optical waveguide as a means of supplying light to an algae cultivation tank. An optical oscillator, which comprises light emitting diodes for emitting light in wavelength ranges of 675-685 nm, 695-705 nm, 425-435 nm, and 450-660 nm respectively, is mounted on one end surface of the optical waveguide, and a light reflective material or the like is provided at the outer edge or inner periphery of the optical waveguide so that light is emitted in a direction perpendicular to the central axis of the optical waveguide. The microalgae cultivation device is further provided with an agitator that includes the optical waveguide, which agitates a nutrient salt solution inside the cultivation tank by rotating an agitation blade around a rotation shaft, and that has a device for generating microbubbles of CO2 at the lower part of the rotation shaft in the axial direction.
Inventors:
MAEKAWA TAKAAKI (JP)
AKAMATSU NOBUKO (JP)
NAKADA MASATSUYO (JP)
SUGIYAMA YASUNARI (JP)
YOKOYAMA NOBORU (JP)
AKAMATSU NOBUKO (JP)
NAKADA MASATSUYO (JP)
SUGIYAMA YASUNARI (JP)
YOKOYAMA NOBORU (JP)
Application Number:
PCT/JP2010/071059
Publication Date:
June 03, 2011
Filing Date:
November 25, 2010
Export Citation:
Assignee:
RES INST OF TSUKUBA BIO TECH CORP (JP)
MAEKAWA TAKAAKI (JP)
AKAMATSU NOBUKO (JP)
NAKADA MASATSUYO (JP)
SUGIYAMA YASUNARI (JP)
YOKOYAMA NOBORU (JP)
MAEKAWA TAKAAKI (JP)
AKAMATSU NOBUKO (JP)
NAKADA MASATSUYO (JP)
SUGIYAMA YASUNARI (JP)
YOKOYAMA NOBORU (JP)
International Classes:
C12M1/00; A01G33/00
Domestic Patent References:
| WO2009002772A2 | 2008-12-31 |
Foreign References:
| JPH07289236A | 1995-11-07 | |||
| JPH07184630A | 1995-07-25 | |||
| JPH0358780A | 1991-03-13 | |||
| JP2008283937A | 2008-11-27 |
Other References:
WANG, CY. ET AL.: "Effects of using light- emitting diodes on the cultivation of Spirulina platensis.", BIOCHEMICAL ENGINEERING JOURNAL, vol. 37, 2007, pages 21 - 25, XP022297628, DOI: doi:10.1016/j.bej.2007.03.004
TAKAHITO MATSUMOTO ET AL.: "Effect of Light Quality and CO_2 Concentration on Photosynthetic Growth of Euglena gracilis", ECO-ENGINEERING, vol. 19, no. 1, 2007, pages 27 - 32
MIDORI OKADA ET AL.: "Shosha Hacho no Chigai ni yoru Chlorella no Seiiku to Saibonai Seibun no Henka", CSJ: THE CHEMICAL SOCIETY OF JAPAN DAI 81 SHUNKI NENKAI 2002 NEN KOEN YOKOSHU II, 2002, pages 1422
TAKAHITO MATSUMOTO ET AL.: "Effect of Light Quality and CO_2 Concentration on Photosynthetic Growth of Euglena gracilis", ECO-ENGINEERING, vol. 19, no. 1, 2007, pages 27 - 32
MIDORI OKADA ET AL.: "Shosha Hacho no Chigai ni yoru Chlorella no Seiiku to Saibonai Seibun no Henka", CSJ: THE CHEMICAL SOCIETY OF JAPAN DAI 81 SHUNKI NENKAI 2002 NEN KOEN YOKOSHU II, 2002, pages 1422
Attorney, Agent or Firm:
HONDA ICHIRO (JP)
Ichiro Honda (JP)
Ichiro Honda (JP)
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