Document Type and Number:
Japanese Patent JPH0527619
Kind Code:
B2
Abstract:
PURPOSE:Carbon dioxide is brought into contact with algae under supercritical conditions to extract lipids containing carotinoids such as beta-carotin in such a state as chlorophyll is selectively excluded to enable the extraction of lipids free from chlorophyll. CONSTITUTION:Carbon dioxide is used as an extractant and pressurized with compressor 3, heated with heat-exchanging type heater 4 to prepare carbon dioxide gas under supercritical conditions (over 75.2kg/cm<2> of the critical pressure, over 31.1 deg.C of the critical point) and the gas is fed into the extraction tank 2. The carbon dioxide under the supercritical conditions is brought into contact with a powder of spirulina in the extraction tank 2 to extract lipids free from chlorophyll. The carbon dioxide containing lipids are reduced in pressure by passing through pressure-controlling valve 6, then the lipids 7 is collected in the tank 5 by feeding the carbon dioxide reduced in pressure continuously into the recovery tank 5.
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Inventors:
YAMAGUCHI KATSUMI
YAMAMOTO HIROSHI
ANDO NORIO
MURAI KATSUYUKI
KAJAMA TETSUO
YAMAMOTO HIROSHI
ANDO NORIO
MURAI KATSUYUKI
KAJAMA TETSUO
Application Number:
JP6259584A
Publication Date:
April 21, 1993
Filing Date:
March 29, 1984
Export Citation:
Assignee:
IWATANI SANGYO KK
IWATANI GASU KK
NIPPON SUPIRURINA KK
YAEYAMA SHOKUSAN KK
IWATANI GASU KK
NIPPON SUPIRURINA KK
YAEYAMA SHOKUSAN KK
International Classes:
A23L17/60; C07C403/24; C12P23/00; C12R1/89
Next Patent: JPH0527620