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Title:
PRODUCTION OF NATURAL VITAMIN K CONDENSATE
Document Type and Number:
Japanese Patent JPH05155803
Kind Code:
A
Abstract:

PURPOSE: To economically obtain a vitamin K condensate in a high concentration ratio by a mild method by extracting a deodorized distillation product containing vitamin K produced as a by-product in a purification process of vegetable oils and fats with an alcohol and then treating the extract with an active carbon.

CONSTITUTION: A deodorized distillate containing vitamin K as a by-product in purification process of vegetable oils and fats such as soybean oil or rape oil containing vitamin K is extracted with an alcohol such as ethanol. Then the resultant extract is brought into contact with active carbon to absorb vitamin K. Thereafter, the vitamin-absorbed active carbon is washed with an alcohol and further the active carbon is mixed with a solvent having low polarity and filtered or passed through a column to provide the objective fraction in which natural vitamin K is concentrated. By the method, not only vitamin K1 but also vitamin K2 can be recovered. The vitamin K concentrate can be used as an agent for increasing the content of vitamin K in standardized powder milk, edible oils and fats and other foods.


Inventors:
Isobe, Yosuke
Sugawa, Yuuko
Otani, Yutaka
Sato, Toshiro
Fujiwara, Takako
Application Number:
JP1991000342164
Publication Date:
June 22, 1993
Filing Date:
November 30, 1991
Export Citation:
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Assignee:
HONEN CORP
International Classes:
C11B3/12; C07C46/10; C07C50/14; (IPC1-7): C07C46/10; C07C50/14; C11B3/12
Attorney, Agent or Firm:
萼 経夫 (外2名)



 
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