땅콩脂肪含量과 脂肪酸助成의 品種間 差異

Evaluation of Oil Content and Fatty acid Composition in Peanut Varieties

The oil content and fatty acid composition of 281 peanut varieties which were introduced from abraod, collected and bred in Korea, were evaluated to search the breeding materials of high oil content and good oil quality. The oil content of all varieties ranged from 40.4% to 60.2%. The average oleic acid (18 : 1) content of peanut oil was 42.2% and ranged from 32.1 to 55.4%, average linoleic acid (18 : 2) was 39.0% and ranged between 26.2 and 49.0%. Korea bred lines and PI lines were the highest in oleic and linoleic acid, respectively. Average concentration was 10.0%(range 4.1~17.5%) in palmitic(16 : 0), 2.5% (range 0. 7~5.7%) in stearic (18 : 0), 2.3% (range 0~4.9%) in arachidic (20 : 0), 1.3% (range 0~4.3%) in eicosenoic (22 : 1), and 2.8% (range 0~9.2%) in behenic acid (22 : 0). Oleic acid content was higher in small-seeded varieties while linoleic was higher in the large-seeded varieties. The highly negative correlation was shown between the concentration of the major high quality fatty acid, oleic plus linoleic, and each minor acid, palmitic, stearic, arachidic, eicosenoic and behenic acid.