METHOD FOR PURIFYING STEARIDONIC ACID

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United States of America Patent

APP PUB NO 20160361285A1
SERIAL NO

15121728

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ATTORNEY / AGENT: (SPONSORED)

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Abstract

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The present invention relates to a method for producing and purifying SDA at high purity and/or high yield from a raw material such as anchovy oil. According to the present invention, when separating and purifying SDA from a raw material (e.g. anchovy oil) that includes SDA, high-quality, high-purity SDA is produced at a high recovery rate by using a combination of ethyl esterification and a silver nitrate treatment method. (1) A purification method selected from the group consisting of a thin-film vacuum superfractionation method, a simulated moving bed chromatography method, a urea addition method, and a molecular distillation method, and (2) an adsorbent treatment may be combined, as necessary.

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Patent Owner(s)

Patent OwnerAddress
BIZEN CHEMICAL CO LTDOKAYAMA 709-0716

International Classification(s)

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  • 2015 Application Filing Year
  • A61K Class
  • 16157 Applications Filed
  • 11882 Patents Issued To-Date
  • 73.55 % Issued To-Date
Click to zoom InYear of Issuance% of Matters IssuedCumulative IssuancesYearly Issuances201520162017201820192020202120222023202420250255075100

Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Shimizu, Yoshio Akaiwa-shi, JP 42 425
Tsusima, Tadahiro Akaiwa-shi, JP 1 0

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Citation count rangeNumber of patents cited in rangeNumber of patents cited in various citation count ranges6209860894426710349291291182201 - 1011 - 2021 - 3031 - 4041 - 5051 - 6061 - 7071 - 8081 - 9091 - 100100 +0500100015002000250030003500400045005000550060006500700075008000850090009500

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