Dihomo-gamma-linolenic acid-containing microbial oil/lipid with reduced arachidonic acid content
AssigneeNippon Suisan Kaisha, Ltd.
InventorsSeizo SATO, Takayoshi SEKIGUCHI, Misaki TAKAHASHI
Life of this patent
Estimating the term…
Abstract
The purpose of the present invention is to provide an oil/lipid that contains dihomo-γ-linolenic acid at a higher purity. Provided is a microbial oil/lipid that is specified by a high content of dihomo-γ-linolenic acid contained therein and/or a reduced content of undesirable constituting fatty acid(s).
Claims50
A microbial oil/lipid comprising dihomo-γ-linolenic acid as a constituent fatty acid of an oil in a content of greater than 30 wt. %, greater than 32 wt. %, or greater than 34 wt. % and comprising substantially no arachidonic acid or comprising arachidonic acid in a content of 0.3 wt. % or less, 0.2 wt. % or less, 0.1 wt. % or less, 0.05 wt. % or less, 0.04 wt. % or less, 0.03 wt. % or less, or 0.01 wt. % or less.
A microbial oil/lipid comprising dihomo-γ-linolenic acid as a constituent fatty acid of an oil in a content of more than 30 wt. %, more than 32 wt. %, or more than 34 wt. %, wherein a content of C24:0 is 8.5 wt. % or less, 7.0 wt. % or less, 6.0 wt. % or less, or 5.5 wt. % or less.
A microbial oil/lipid comprising dihomo-γ-linolenic acid as a constituent fatty acid of an oil in a content of more than 30 wt. %, more than 32 wt. %, or more than 34 wt. %, wherein a total content of C24:0 and C22:0 is 11.0 wt. % or less, 10.0 wt. % or less, 9.0 wt. % or less, 8.0 wt. % or less, or 7.5 wt. % or less.
A microbial oil/lipid comprising dihomo-γ-linolenic acid as a constituent fatty acid of an oil in a content of greater than 30 wt. %, greater than 32 wt. %, or greater than 34 wt. %, wherein a total content of C24:0, C22:0, and C20:0 is 12.0 wt. % or less, 11.0 wt. % or less, 10.0 wt. % or less, 9.0 wt. % or less, or 8.0 wt. % or less.
A microbial oil/lipid comprising dihomo-γ-linolenic acid as a constituent fatty acid of an oil, wherein a compositional ratio of arachidonic acid to the dihomo-γ-linolenic acid as the constituent fatty acid of the oil is 1/120 or less, 1/180 or less, 1/360 or less, 1/1000 or less, 1/2350 or less, or 1/3000 or less in terms of weight ratio.
A microbial oil/lipid comprising dihomo-γ-linolenic acid as a constituent fatty acid of an oil, wherein a compositional ratio of C24:0 to the dihomo-γ-linolenic acid as the constituent fatty acid of the oil is 1/4.1 or less, 1/5.0 or less, or 1/6.0 or less in terms of weight ratio.
A microbial oil/lipid comprising dihomo-γ-linolenic acid as a constituent fatty acid of an oil, wherein a compositional ratio of a total of C24:0 and C22:0 to the dihomo-γ-linolenic acid as the constituent fatty acid of the oil is 1/3.1 or less, 1/4.0 or less, or 1/5.0 or less in terms of weight ratio.
A microbial oil/lipid comprising dihomo-γ-linolenic acid as a constituent fatty acid of an oil, wherein a compositional ratio of a total of C24:0, C22:0, and C20:0 to the dihomo-γ-linolenic acid as the constituent fatty acid of the oil is 1/3.0 or less, 1/3.9 or less, or 1/4.8 or less in terms of weight ratio.
(canceled)
A method of producing a dihomo-γ-linolenic acid-containing microbial oil/lipid comprising substantially no ARA, the method comprising culturing, in a culture medium, a microorganism strain having a mutation in a Δ5 desaturase gene to produce the dihomo-γ-linolenic acid-containing microbial oil/lipid.
A microorganism having accession number FERM BP-02778.
Dependencies are inferred from the claim text.