C - Chemistry – Metallurgy – 07 – C
Patent
C - Chemistry, Metallurgy
07
C
C07C 403/24 (2006.01) C09B 61/00 (2006.01) C12P 23/00 (2006.01)
Patent
CA 2177752
A process for the recovery of astaxanthin carotenoid pigment from Haematococcus pluvialis algae is described. The process comprises two steps: (a) communication of said algae in a liquid medium by rupturing the cell walls algae and dispersing the resulted pigment, being characterized by the fact that said comminution is carried out in a high pressure apparatus consisting of two consecutive units: a pressure vessel and an interaction chamber, whereby a slurry of said algae- cnntaining above 1% and generally between 5% to 10% by weight solids, enters into said pressure vessel maintained at a pressure of at least 2000 psi and preferably in the range of 3000 to 6000 psi and is conveyed into said interaction chamber maintained at a pressure of above 10000 psi and preferably in the range of 13000 to 18000 psi, said interaction chamber containing at least one channel, through which the slurry is passed at an increased velocity to effect a turbulent jet causing a rupture of the algae cell walls and a substantially decrease in the particles size of the algae, which impinge the disintegrated particles within a low pressure zone, whereby the astaxanthin carotenoid pigment is released from the comminuted algae and is subsequently recovered.
Galit Meshulam-Simon
Jonah Gavrieli
Imi (tami) Institute For Research & Development Ltd.
Sim & Mcburney
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