Title:
METHOD FOR CULTURING PHOTOSYNTHETIC MICROALGAE
Document Type and Number:
WIPO Patent Application WO/2018/043146
Kind Code:
A1
Abstract:
The present invention provides a method for culturing photosynthetic microalgae, with which it is possible to obtain xanthophyll more efficiently compared to conventional art. This culturing method is a method for culturing photosynthetic microalgae, involving: (A) a step for increasing the number of cells by subjecting encysted photosynthetic microalgae including xanthophyll to light irradiation (a); and (B) a step for increasing the content of xanthophyll in the photosynthetic microalgae by subjecting, to light irradiation (b), the photosynthetic microalgae that has undergone the step (A) for increasing the number of cells. The light irradiation (a) and the light irradiation (b) are light irradiations employing different light sources, wherein: the light irradiation (a) is light irradiation that employs, as a light source, an LED including blue light having a wavelength from 400 to 490 nm; and the light irradiation (b) is light irradiation that employs, as a light source, an LED including blue light having a wavelength from 400 to 490 nm and an LED including red light having a wavelength from 620 to 690 nm.
Inventors:
MATSUMOTO YOKO (JP)
ISHIKURA MASAHARU (JP)
SUZUKI HIROSHI (JP)
ISHIKURA MASAHARU (JP)
SUZUKI HIROSHI (JP)
Application Number:
PCT/JP2017/029513
Publication Date:
March 08, 2018
Filing Date:
August 17, 2017
Export Citation:
Assignee:
SHOWA DENKO KK (JP)
International Classes:
C12N1/12; C12P7/26
Domestic Patent References:
WO2015151577A1 | 2015-10-08 | |||
WO2005116238A1 | 2005-12-08 | |||
WO2013021675A1 | 2013-02-14 | |||
WO2015151577A1 | 2015-10-08 |
Foreign References:
JP2007097584A | 2007-04-19 |
Other References:
TOMOHISA KATSUDA: "A Biochemical Engineering Study of Bioproductions Using Photobioreactor", SEIBUTSU KOGAKU KAISHI = JOURNAL OF THE SOCIETY FOR BIOSCIENCE AND BIOENGINEERING, JAPAN,20080101NIPPON SEIBUTSU KOGAKKAI, SUITA, JP, vol. 86, no. 3, 2008, Japan, pages 117 - 122, XP009514058, ISSN: 0919-3758
AKITOSHI KITAMURA: "Bioengineering", vol. 93, 2015, PUBLIC INTEREST INCORPORATED ASSOCIATION, article "Commercial Production of Astaxanthin from Green Algae of the genus Haematococcus", pages: 383 - 387
"Methods in Phycological Studies", 1979, KYORITSU SHUPPAN CO., LTD.
See also references of EP 3508566A4
AKITOSHI KITAMURA: "Bioengineering", vol. 93, 2015, PUBLIC INTEREST INCORPORATED ASSOCIATION, article "Commercial Production of Astaxanthin from Green Algae of the genus Haematococcus", pages: 383 - 387
"Methods in Phycological Studies", 1979, KYORITSU SHUPPAN CO., LTD.
See also references of EP 3508566A4
Attorney, Agent or Firm:
SSINPAT PATENT FIRM (JP)
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