从广东湛江市场收集到6种鳞鲀亚目鱼：丝背细鳞鲀、圆斑疣鳞鲀、双棘三刺鲀、中华单角鲀、黄鳍马面鲀、单角革鲀，采用国家标准方法测定组织中的水分和粗脂肪，经毛细管气相色谱法测定了肌肉中的24种脂肪酸组分，分析和比较了其饱和脂肪酸（SFA）、单不饱和脂肪酸（MUFA）和多不饱和脂肪酸（PUFA）的含量，结果显示，6种鳞鲀亚目的鱼体含水量67.2%~72.9%，粗脂肪占干重1.05%~1.42%，肌肉饱和脂肪酸含量为34.21%~43.45%，单不饱和脂肪酸含量为11.84%~19.43%，多不饱和脂肪酸含量为34.39%~48.86%。6种鳞鲀亚目鱼有较高含量的多不饱和脂肪酸，其ω-3系脂肪酸高于ω-6系脂肪酸，ω-3/ω-6为1.0~4.7，具有较高的脂肪酸营养价值，其中圆斑疣鳞鲀和黄鳍马面鲀的ω-3/ω-6分别为3.3和4.7。6种鳞鲀亚目鱼均具有较高的EPA（二十碳五烯酸）+DHA（二十二碳六烯酸），含量为17.20%~37.49%，按鱼中肌肉的EPA+DHA含量，黄鳍马面鲀（37.49%）>圆斑疣鳞鲀（30.29%）>中华单角鲀（25.73%）>丝背细鳞鲀（23.82%）>双棘三刺鲀（18.82%）>单角革鲀（17.20%），其中黄鳍马面鲀EPA+DHA高达37.49%±2.67%，具有较高的食用价值和医用价值。

Six species of Balistoidei (Stephanolepis cirrhifer, Canthidermis maculata, Triacanthus biaculeatus, Monacanthus chinensis, Thamnaconus hypargyreus, and Aluterus monoceros) were collected from the market of Zhanjiang City, Guangdong Province of China to compare the fatty acid composition in their muscles. The moisture and crude fat contents were measured using the Soxhlet extraction method according to national standard. The determination of fatty acid components in the muscle samples of Balistoidei was performed using capillary gas chromatography, and 24 fatty acid components were identified. The contents of saturated fatty acid (SFA), monounsaturated fatty acid (MUFA), and polyunsaturated fatty acid (PUFA) were analyzed and compared respectively. The results showed that the moisture content in Balistoidei body ranged from 67.21% to 72.95%, and the crude fat content ranged from 1.05% to 1.42% of dry weight. The contents of SFA, MUFA, and PUFA in muscles of the six Balistoidei species were in the range of 34.21%–43.45%, 11.84%–19.43%, and 34.39%–48.86%, respectively. The content of PUFA was relatively higher than that of SFA and MUFA. ω-3 fatty acid content was higher than ω-6 fatty acid content. The ω-3/ω-6 ratios ranged from 1.0 to 4.7, indicating a relatively high fatty acid nutritional value. In addition, the ω-3/ω-6 ratios of C. maculata and T. hypargyreus were 3.3 and 4.7, respectively. The content of eicosapentaenoic acid (EPA) + docosahexaenoic acid (DHA) in the muscles was high (17.20%–37.49%) in all the six species and in the order of T. hypargyreus (37.49%) > C. maculata (30.29%) > M. chinensis (25.73%) > S. cirrhifer (23.82%) > T. biaculeatus (18.82%) > A. monoceros (17.20%). The EPA + DHA content in T. hypargyreus was as high as 37.49%±2.67%, indicating high edible and medicinal values.

广东省科技发展专项资金项目(粤科规财字[2017]12号)；湛江市科技计划项目(2017B01008)