Abstract
Open-tubular gas chromatographic analysis was carried out on fatty acids from the total lipids from each of 3 species of the Chlorophyta (I), and Rhodophyta (II), and 6 speices of Phaeophyta (III). The specific features of polyenoic acids in each class were relatively high percentages of 16 : 3 (n-3) (2.27.8%) and 16 : 4 (n-3) (16.217.7%) in I, 20 : 4 (n-6) (60%) or 20 : 5 (n-3) (51%) in II, and one or more of 18 : 3 (n-3), 18 : 4 (n-3), 20 : 4 (n-6), and 20 : 5 (n-3) in III. The percentage of 20 : 4 (n-6) in total lipids from Garcilaria verrucosa was noticeably as high as 60% of the total acids, and 91% of the total polyenoic acids. The algae belong to II are expected to be the source for 20 : 4 (n-6) and 20 : 5 (n-3). The 18 : 1 (n-7) /18 : 1 (n-9) ratios were generally high in I, and extremely low in III.
