Oil Content and Fatty Acid Composition Profiles in Panicum miliaceum L.Grain

Abstract

Oil content and fatty acid composition profiles in grain of 18 proso millet accessions were investigated.The results showed that oil content in proso millet ranged from 2.54% to 4.00%,and averaged 3.71%.The major fatty acids detected were linoleic (18:2n6),oleic (18:1n9) and palmitic (16:0),ranging from 0.075 to 5.19,0.150 to 3.02,and 0.897 to 1.81 g/100 g,respectively.Minor fatty acids included palmitoleic,stearic,linolenic,arachidic,arachidonic,docosanoic and tetracosanoic acids.The unsaturated fatty acids (UFA) accounted for 82.1%～94.6% of the total oil.Both correlation analysis and principal component analysis indicated significant inter-relationships among ten fatty acids.Cluster analysis suggested that the fatty acid profile was significantly related to genotypes.

Keywords

• oil content
• fatty acid composition
• proso millet
• principal component analysis
• cluster analysis