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Lipid characterization of a high-stearic sunflower mutant displaying a seed stearic acid gradient.
J Agric Food Chem. 2006 May 17; 54(10):3612-6.JA

Abstract

In the seeds of the high-stearic sunflower mutant CAS-14 a gradient of increasing stearic acid exists from the embryo to the terminal extreme of the cotyledon. This gradient modifies the fatty acid composition of the total lipids, triglycerides, and phospholipids, which can best be appreciated in the triglycerides that pass from 16% stearic acid content in the embryo to 37.1% in the other extreme. This increase in the triglycerides occurs principally at the cost of the oleic acid content. The stearic content at position sn-2 of triglycerides is low, rising from 1.3% in the embryo to 3.4%, whereas at positions sn-1 +3 the stearic content is high and augments from 25.2% in the embryo to 41.0% at the other extreme. The molecular species of triglycerides are also modified; the disaturated triglycerides increase from 15.5 to 51.7%. Furthermore, for the first time in sunflower seeds, it is demonstrated that trisaturated triglycerides are present, arising probably due to a modification in the acyltransferase system that synthesizes the triglycerides.

Authors+Show Affiliations

Instituto de la Grasa (CSIC), Avenida Padre García Tejero 4, E-41012 Seville, Spain.No affiliation info availableNo affiliation info available

Pub Type(s)

Journal Article
Research Support, Non-U.S. Gov't

Language

eng

PubMed ID

19127733

Citation

Fernandez-Moya, Valle, et al. "Lipid Characterization of a High-stearic Sunflower Mutant Displaying a Seed Stearic Acid Gradient." Journal of Agricultural and Food Chemistry, vol. 54, no. 10, 2006, pp. 3612-6.
Fernandez-Moya V, Martínez-Force E, Garcés R. Lipid characterization of a high-stearic sunflower mutant displaying a seed stearic acid gradient. J Agric Food Chem. 2006;54(10):3612-6.
Fernandez-Moya, V., Martínez-Force, E., & Garcés, R. (2006). Lipid characterization of a high-stearic sunflower mutant displaying a seed stearic acid gradient. Journal of Agricultural and Food Chemistry, 54(10), 3612-6.
Fernandez-Moya V, Martínez-Force E, Garcés R. Lipid Characterization of a High-stearic Sunflower Mutant Displaying a Seed Stearic Acid Gradient. J Agric Food Chem. 2006 May 17;54(10):3612-6. PubMed PMID: 19127733.
* Article titles in AMA citation format should be in sentence-case
TY - JOUR T1 - Lipid characterization of a high-stearic sunflower mutant displaying a seed stearic acid gradient. AU - Fernandez-Moya,Valle, AU - Martínez-Force,Enrique, AU - Garcés,Rafael, PY - 2009/1/9/entrez PY - 2006/5/17/pubmed PY - 2009/2/12/medline SP - 3612 EP - 6 JF - Journal of agricultural and food chemistry JO - J Agric Food Chem VL - 54 IS - 10 N2 - In the seeds of the high-stearic sunflower mutant CAS-14 a gradient of increasing stearic acid exists from the embryo to the terminal extreme of the cotyledon. This gradient modifies the fatty acid composition of the total lipids, triglycerides, and phospholipids, which can best be appreciated in the triglycerides that pass from 16% stearic acid content in the embryo to 37.1% in the other extreme. This increase in the triglycerides occurs principally at the cost of the oleic acid content. The stearic content at position sn-2 of triglycerides is low, rising from 1.3% in the embryo to 3.4%, whereas at positions sn-1 +3 the stearic content is high and augments from 25.2% in the embryo to 41.0% at the other extreme. The molecular species of triglycerides are also modified; the disaturated triglycerides increase from 15.5 to 51.7%. Furthermore, for the first time in sunflower seeds, it is demonstrated that trisaturated triglycerides are present, arising probably due to a modification in the acyltransferase system that synthesizes the triglycerides. SN - 0021-8561 UR - https://www.unboundmedicine.com/medline/citation/19127733/Lipid_characterization_of_a_high_stearic_sunflower_mutant_displaying_a_seed_stearic_acid_gradient_ L2 - https://doi.org/10.1021/jf052501f DB - PRIME DP - Unbound Medicine ER -