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

Lu Changyi Lin Liangmu Wang Hehai (Envir.Sci.Res.Centre,Mar.Ecol.Envir.Lab of SEDC Xiamen Univ,Xiamen 361005)  
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.
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