Title:
【発明の名称】微小藻類懸濁液の脱水及び微小藻類からの成分の抽出のための浮遊分離法及びシステム
Document Type and Number:
Japanese Patent JP2001509011
Kind Code:
A
Abstract:
A process and system are disclosed for recovering mixed carotenoids from the alga Dunaliella salina. The harvested cells are ruptured, typically by circulating the algal suspension at high pressure through a pump loop. The cells can then be dewatered by absorptive bubble separation techniques, including a froth floatation circuit that has a roughing zone and a concentrating zone. If further concentration is desired, the algal concentrate can be mechanically filtered in a cross flow microfiltration unit in the absence of flocculating agents with substantially no loss of carotenoids in the permeate. Various methods for extracting mixed carotenoids and other components from the algae are disclosed, including dense gas extraction, and extractions with natural and synthetic flavorants, and edible oils.
Inventors:
Cannel, jeffrey scott
Gercher, scott arthur
Gercher, scott arthur
Application Number:
JP52882898A
Publication Date:
July 10, 2001
Filing Date:
December 10, 1997
Export Citation:
Assignee:
Eastman Chemical Company
International Classes:
B01D11/02; B03D1/02; C02F1/24; C07C403/24; C09B61/00; C12M1/42; C12M3/08; C12N1/02; C12P23/00; C12M1/33; C12R1/89; (IPC1-7): C12P23/00; B01D11/02; C02F1/24; C09B61/00; C12M1/33; C12M3/08
Attorney, Agent or Firm:
Takashi Ishida (4 others)