GB643365A - Improvements in or relating to the concentration of the carotenoid content of a fatty oil - Google Patents

Improvements in or relating to the concentration of the carotenoid content of a fatty oil

Info

Publication number
GB643365A
GB643365A GB27740/47A GB2774047A GB643365A GB 643365 A GB643365 A GB 643365A GB 27740/47 A GB27740/47 A GB 27740/47A GB 2774047 A GB2774047 A GB 2774047A GB 643365 A GB643365 A GB 643365A
Authority
GB
United Kingdom
Prior art keywords
oil
solvent
temperature
critical temperature
carotenoiel
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired
Application number
GB27740/47A
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
MW Kellogg Co
Original Assignee
MW Kellogg Co
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by MW Kellogg Co filed Critical MW Kellogg Co
Publication of GB643365A publication Critical patent/GB643365A/en
Expired legal-status Critical Current

Links

Classifications

    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
    • A61K31/00—Medicinal preparations containing organic active ingredients
    • A61K31/59—Compounds containing 9, 10- seco- cyclopenta[a]hydrophenanthrene ring systems

Landscapes

  • Health & Medical Sciences (AREA)
  • Chemical & Material Sciences (AREA)
  • Medicinal Chemistry (AREA)
  • Pharmacology & Pharmacy (AREA)
  • Epidemiology (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Animal Behavior & Ethology (AREA)
  • General Health & Medical Sciences (AREA)
  • Public Health (AREA)
  • Veterinary Medicine (AREA)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
  • Extraction Or Liquid Replacement (AREA)

Abstract

The carotenoiel content of a fatty oil is concentrated by contacting said oil with a low-boiling solvent for said oil, said solvent having a critical temperature not substantially higher than 450 DEG F., the temperature of contact being within the range at which the solubility of the oil in the solvent decreases with rising temperature and between about 100 DEG F. below the critical temperature of the solvent and not substantially above said critical temperature so as to form solvent and oil phases between which the oil is distributed, and the pressure being at least sufficient to maintain the solvent in the liquid condition at a temperature employed, and recovering from said oil phase the carotenoiel concentrate. Preferably the extraction step is carried out in a counter-current extraction zone which is refluxed by oil separated from the extract phase. As solvents there may be used low boiling paraffins or olefins, e.g. ethane, propane butane, pentane and hexane, and also ammonia, dichlordefluoromethane, dimethyl ether, methyl fluoride and other halogenated hydrocarbon. An example is given.
GB27740/47A 1944-04-06 1947-10-16 Improvements in or relating to the concentration of the carotenoid content of a fatty oil Expired GB643365A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US643365XA 1944-04-06 1944-04-06

Publications (1)

Publication Number Publication Date
GB643365A true GB643365A (en) 1950-09-20

Family

ID=22055234

Family Applications (1)

Application Number Title Priority Date Filing Date
GB27740/47A Expired GB643365A (en) 1944-04-06 1947-10-16 Improvements in or relating to the concentration of the carotenoid content of a fatty oil

Country Status (1)

Country Link
GB (1) GB643365A (en)

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