| 摘要: |
| 对中国黄、渤海沿岸的17 种红藻、12 种褐藻、7 种绿藻的脂肪酸组成进行了分析研究, 结果表明, 黄海和渤海的绝大多数红藻都富含二十碳高度不饱和脂肪酸(主要是二十碳五烯酸, EPA 和二十碳四烯酸, AA) , 一般都占总脂肪酸的40%以上; 仙菜目的松节藻、细枝软骨藻, 隐丝藻目的亮管藻、海萝、海膜、蜈蚣藻中的EPA 含量均超过40%, 其中海萝达到58%; 杉藻目扁江蓠中EPA 含量很低, 但花生四烯酸含量达到58%。褐藻中16:0、18:1( n-9) 、20:4( n-6) 和20:5( n-3) 含量占绝对优势, 十八碳高度不饱和脂肪酸( PUFAs) 和二十碳PUFAs 是主要的
脂肪酸。在每种褐藻中还含有一定量的14:0、18:2( n-6) 、18:3( n-3) 和18:4( n-3) 。褐藻中的十八碳PUFAs 含量比红藻高, 而二十碳PUFAs 比红藻低。绿藻中的主要脂肪酸是16:0、十六碳高度不饱和脂肪酸(主要是16:4( n-3) 和16:3( n-3) )、18:1 以及C18PUFAs( 主要包括18:2( n-6) , 18:3( n-3) 和18:4( n-3) ) , 绿藻的C16、C18PUFAs 含量较高。 |
| 关键词: 红藻, 褐藻, 绿藻, 脂肪酸 |
| DOI： |
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| 基金项目:国家自然科学重点基金项目, B2001702 号 |
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| FATTY ACIDS OF COMMON MARINE MACROPHYTES FROM THE YELLOW AND BOHAI SEAS |
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LI Xian-Cui, FAN Xiao, HAN Li-Jun, YAN Xiao-Jun, LOU Qing-Xiang
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Institute of Oceanology, The Chinese Academy of Sciences
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| Abstract: |
| Fatty acid compositions of 17 species of Rhodophyceae, 12 species of Phaeophyceae, 7 species of Chlorophyceae collected in the Yellow Sea and the Bohai Sea were determined1The result indicates that Rhodophyceae in the Yellow Sea and those in the Bohai Sea are all rich in C20 polyunsaturated fatty acids (PUFAs) ( EPA and AA); the content of C20 PUFAs are usually more than 40%. Rhodomela confervoides, Chondria tenuissima, Hyalosiphonia caespitosa, Gloiopeltis furcata, Halymenia sinensis and Grateloupia licina contain EPA more than 40%; in particular, G. furcata accumulated 58% of EPA. Gracilaria textorii was poorer in EPA, but was rich in arachidonic acid ( 58%). 16:0、18:1 ( n-9) , 20:4 ( n-6) and 20:5 ( n-3) were the predominant fatty acids in Phaeophyceae. C18 PUFAs and C20 PUFAs were the main polyunsaturated fatty acids. Every species of Phaeophyceae also contained 14:0、18:2 ( n- 6)、18:3 (n-3) and 18:4 ( n-3). Phaeophyceae were richer in C18 PUFAs than Rhodophyceae, but poorer in C20 PUFAs than Rhodophyceae. 16:0, 18:1, C16 PUFAs ( the content of 16:4 ( n- 3) and 16:3 ( n- 3) were over 10% of total fatty acids) and C18 PUFAs ( 18:2 ( n-6) , 18:3 ( n-3) and 18:4 ( n-3) ) were the main fatty acids in Chlorophyceae. Chlorophyceae contained high level of C16 PUFAs and C18 PUFAs. |
| Key words: Phaeophyceae, Chlorophyceae, Rhodophyceae, Fatty acids |
