红树植物叶片中脂肪酸组成及其资源价值

采用气相色谱和色质联用仪分析发现我国不同地区主要红树植物种类叶片与非红树植物在脂肪酸组成上相似，但饱和脂肪酸含量相对较多，不饱和脂肪酸含量较少；脂肪酸不饱和指数较低；不饱和脂肪酸与饱和脂肪酸含量的比值较小．红树植物体内多不饱和脂肪酸种类多而且廿碳四烯酸和亚油酸含量较高，是潜在的脂肪酸资源．红树植物叶片凋落物中的多不饱和脂肪酸为红树林生态系统中的鱼虾蟹提供必需脂肪酸，对提高近海水产的产量有重要的意义

Composition of Fatty Acids in Mangrove Leaves and Their Worth as Natural Resources

Composition of fatty acids in main mangrove leaves in different regions of China has been studied by GC and GC MS DS techniques.It is found that the composition of fatty acids in mangrove is similar to those in non mangrove plants.However,the content of saturated fatty acid (SFA)is higher and unsaturated fatty acid (UFA) is lower in comparison with non mangrove plants;the index of unsaturated fatty acid(IUFA) is also lower and the ratio of UFA to SFA(U/S) is lower than that of non mangrove plants.Mangrove plants have many kinds of poly unsaturatedfatty acid (PUFA),and the content of eicosabutaenoic acid and linoleate is high ,which could be considered as talent natural fatty acid resources .PUFA in litter fall of mangrove plants plays an important role in growth of fishes ,shrimps and crabs in mangrove ecosystem, and could improve quantity of the off shore aquatic products.