Soybean vegetable oil possessing a reduced linolenic acid content

• US 5,986,118 A
• Filed: 08/25/1998
• Issued: 11/16/1999
• Est. Priority Date: 12/23/1996
• Status: Expired due to Term

• Current Assignee: Iowa State University Research Foundation Incorporated (Iowa State University)
• Original Assignee: Iowa State University Research Foundation Incorporated (Iowa State University)
• Inventors: Hammond, Earl G., Fehr, Walter R.
• Primary Examiner(s): Geist, Gary
• Assistant Examiner(s): Parsa, J.
• Application Number:
  US09/139,748
• Time in Patent Office: 448 Days
• Field of Search: 554/224, 554/8, 554/9
• US Class Current: 554/224
• CPC Class Codes: A01H 5/10 Seeds
• CPC Class Codes: A23D 9/00 Other edible oils or fats, e.g. shortenings, cooking oils
• CPC Class Codes: C11B 1/00 Production of fats or fatty oils from raw materials

Abstract

Soybeans (i.e., Glycine max L. Merr.) possessing a novel genetic determinant for the reduced production of linolenic acid in the endogenously formed vegetable oil of the seeds are provided. Such genetic determinant is the homozygous recessive fan3fan3 gene pair that has been found to be capable of formation through mutagenesis. Once formed, such genetic determinant can be readily transferred to other soybean lines and cultivars where it is similarly expressed on a reliable basis under conventional field growing conditions. In a preferred embodiment a soybean plant possesses the combined presence of the homozygous recessive gene pairs (1) fan1fan1 or fan1(A5)fan1(A5), (2) fan2fan2, as well as (3) fan3fan3 for reduced linolenic acid formation in the seeds and has been found that an unusually low expression for linolenic acid production in the resulting vegetable oil of the seeds is provided that is less than 1.3 percent by weight and most preferably is no more than 1.1 percent by weight based on the total fatty acid content. A vegetable oil is made possible in this instance that is particularly well suited for frying applications in the absence of the need for hydrogenation.

Claims

1. A soybean vegetable oil possessing a reduced linolenic acid content of less than 1.3 percent by weight based on the total fatty acid content as determined by gas liquid chromatography following removal from soybean seeds wherein said linolenic acid concentration is attributable to the combined presence of the homozygous recessive gene pairs (1) fan1fan1 or fan1(A5)fan1(A5), (2) fan2fan2, and (3) fan3fan3.

2. A soybean vegetable oil possessing a reduced linolenic acid content according to claim 1 following removal from soybean seeds wherein said linolenic acid concentration is attributable to the combined presence of the homozygous recessive gene pairs (1) fan1(A5)fan1(A5), (2) fan2fan2, and (3) fan3fan3.

5. A soybean vegetable oil according to claim 1 wherein said reduced linolenic acid content of said vegetable oil of said seeds is no more than 1.1 percent by weight based on the total fatty acid content as determined by gas liquid chromatography.

3. A soybean vegetable oil possessing a reduced linolenic acid content of less than 1.3 percent by weight based on the total fatty acid content as determined by gas liquid chromatography following removal from soybean seeds wherein said linolenic acid concentration is attributable to the combined presence of the homozygous recessive gene pairs (1) fan1(A5)fan1(A5), (2) fan2fan2, and (3) fan3fan3 that are present in A29 having ATCC Accession No. 97813.

6. A soybean vegetable oil according to claim 3 wherein said reduced linolenic acid content of said vegetable oil of said seeds is no more than 1.1 percent by weight based on the total fatty acid content as determined by gas liquid chromatography.

4. A soybean vegetable oil possessing a reduced linolenic acid content of less than 1.3 percent by weight based on the total fatty acid content as determined by gas liquid chromatogrphy following by removal from soybean seeds of A29 having ATCC Accession No. 97813 possessing in combination the homozygous recessive gene pairs (1) fan1(A5)fan1(A5), (2) fan2fan2, and fan3fan3 for the expression of said reduced linolenic acid content, or soybean seeds descended therefrom that possess said homozygous recessive gene pairs.

7. A soybean vegetable oil according to claim 4 wherein said reduced linolenic acid content of said vegetable oil of said seeds is no more than 1.1 percent by weight based on the total fatty acid content as determined by gas liquid chromatography.