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| 南极冰藻生化组成及其与低温适应性关系的研究 | |
| 引用本文： | 缪锦来,石红旗,姜英辉,张波涛,侯旭光.南极冰藻生化组成及其与低温适应性关系的研究[J].海洋科学进展,2002,20(4):43-50. |
| 作者姓名： | 缪锦来 石红旗 姜英辉 张波涛 侯旭光 |
| 作者单位： | 1. 中国海洋大学,生命学院,山东,青岛,266003;海洋生物活性物质国家海洋局重点实验室,山东,青岛,266061 2. 海洋生物活性物质国家海洋局重点实验室,山东,青岛,266061 3. 山东大学,生命学院,山东,济南,250100 |
| 基金项目： | 国家自然科学基金资助项目——南极冰藻中抗紫外辐射活性物质研究 (4 0 2 0 60 2 2 ) |
| 摘 要： | 对4种南极冰藻(2种单细胞绿藻——Pyramimonas sp．和绿藻L4，以及2种硅藻——硅藻Hl和H2)的蛋白质、脂肪、糖、无机元素含量和组成，灰分含量，以及氨基酸和脂肪酸的组成等的基本生化组成进行测定。结果表明，4种冰藻的蛋白质含量均高于常温藻，蛋白质含量以绿藻L4的含量最高，为45．18％；Pyramimonas sp．的蛋白质含量最低为27．70％。4种冰藻的脂肪含量均高于常温藻，为14．02％～l9．89％；总糖含量为4．7％～l6．3％，与常温藻含量接近。Mg的含量在冰藻和常温藻的无机元素中都为最高，为13600～l24000mg／kg，但4种冰藻的含量均低于2种常温藻；4种冰藻的灰分含量均低于常温藻，表明冰藻含有更高的有机成分。冰藻的氨基酸含量与常温藻的含量没有明显不同，但绿藻L4含有较高含量的羟脯氨酸，占总氨基酸含量的2．48％。4种冰藻的脂肪酸组成，主要以多不饱和脂肪酸为主。冰藻的基本生化组成在一定程度上反映了冰藻对生存环境的适应性，并且完全符合作为水产养殖饵料的营养要求。 |
| 关 键 词： | 南极冰藻 绿藻 硅藻 蛋白质 脂肪 糖 无机元素 水产养殖 饵料 氨基酸 生化组成 |
| 文章编号： | 1671-6647(2002)04-0043-08 |
| 修稿时间： | 2002年9月8日 |
Studies on Biochemical Composition of Antarctic Ice-microalgae and Its Relation to the Cold Acclimation |
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| MIAO Jin-lai ,SHI Hong-qi ,JIANG Ying-hui ,ZHANG B o-tao ,HOU Xu-guang.Studies on Biochemical Composition of Antarctic Ice-microalgae and Its Relation to the Cold Acclimation[J].Advances in Marine Science,2002,20(4):43-50. | |
| Authors: | MIAO Jin-lai SHI Hong-qi JIANG Ying-hui ZHANG B o-tao HOU Xu-guang |
| Institution: | MIAO Jin-lai 1,2,SHI Hong-qi 1,JIANG Ying-hui 1,ZHANG B o-tao 2,HOU Xu-guang 3 |
| Abstract: | The basic biochemical compositions(protein,lipid,suga r,ash,pigment,inorganic elements,amino acid and fatty acid) of 4 species of ice -microalgae(green alga Pyamimonas sp. and L4,diatoms H1 and H2) were deter mined. It is shown from the determination results that the protein contents of 4 species of ice-microalgae were all higher than those of temperate microalgae w ith the highest one of green microalgae L4 being 45.18% and the lowest one of Pyramimonas sp. being 27.70%. The lipid contents of 4 species of ice-microalg ae were also higher than those of temperate microalage, being in the range 14.02 % to 19.89% ; and the total sugar contents of ice-microalgae were close to t hose of temperate microalgae,being in the range 4.7% to 16.3%. The contents of M g were the highest ones of all detected inorganic elements of ice and temperate alga, being in the range 13,600 to 124,000mg/kg, and the Mg contents of 4 specie s of ice-microalgae were lower than those of 2 species of temperate algae; the ash contents of 4 species of ice-microalgae were all lower than those of temper ate algae, which indicates that the ice-microalgae contains higher organic comp onets. There were no sigmificant differences between the amino acid contents of ice-microalgae and temperate algae, but the green algae L4 contained higher hyd roxyproline content, accounting for 2.48% of total amino acid content. Polyunsat urated fatty acid was the dominant fatty acid of ice-microalgae. The basic bioc hemical compositions of ice-microalgae reflect the acclimation of ice-microalg ae to the living environment to a certain extent and meet the nutrient requireme nts as the mariculture food. |
| Keywords: | ice-microalgae green algae diatom biochemical compo sition |
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