...
  • 主题
高级搜索  >
历史搜索 清空历史
首页> 外文期刊>Polar biology >Fatty acid composition and antioxidant activity of Antarctic marine sponges of the genus Latrunculia
【24h】

Fatty acid composition and antioxidant activity of Antarctic marine sponges of the genus Latrunculia

机译：南极海豚属海绵的脂肪酸组成和抗氧化活性

获取原文
获取原文并翻译 | 示例
           
页面导航
  • 摘要
  • 著录项
  • 相似文献
  • 相关主题

摘要

The fatty acid composition of marine cold-water sponges of genus Latrunculia, namely Latrunculia bocagei Ridley and Dendy, 1886, and Latrunculia biformis Kirkpatrick, 1907, for which no fatty acid data had been previously reported, has been examined. High levels of long-chain fatty acids (C24-30) with high unsaturation levels (mainly polyunsaturation), and high incidence of branched- and odd-chain fatty acids in sponges are suggested to be partially connected with their specific cell membrane requirements to surmount the negative effects of low temperatures and to enable growth in extreme environments. Furthermore, variations in the fatty acid profile at the species level may reflect variations in compositions or quantities of symbiotic microorganisms that commonly represent up to 60 % of the sponge wet weight. The fatty acid compositions of lipid-rich sponge extracts from five Latrunculia specimens dredged from the Bransfield Strait near the Antarctic Peninsula, were obtained using supercritical carbon dioxide and analyzed using gas chromatography-mass spectrometry-flame ionization detection. Furthermore, the antioxidant activities of these extracts were determined using the photochemiluminescent method. Along with common fatty acids, the chemical analyses revealed very long-chain fatty acids (C22, C24). Differences were seen for the fatty acid levels between both species and different specimens of the same species. The observed differences do not seem connected to the habitat depth of the specimen, but rather indicate the variations within the associated microbiome. Furthermore, these sponge extracts showed antioxidant activities, confirming that they contain lipidic compounds that strongly scavenge free radicals.
机译：已经研究了淡水龙眼属的海洋冷水海绵的脂肪酸组成，即1886年的botagecula bocagei Ridley和Dendy，以及1907年的两栖淡水眼的Kirkpatrick，此前没有报道过脂肪酸数据。建议高水平的不饱和度较高（主要是多不饱和度）的长链脂肪酸（C24-30）以及海绵中支链和奇数链脂肪酸的高发生率与其部分特定的细胞膜需求有关，以克服低温的负面影响，并能在极端环境中生长。此外，在物种水平上脂肪酸分布的变化可能反映了共生微生物的组成或数量的变化，这些变化通常代表海绵湿重的60％。使用超临界二氧化碳获得了从南极半岛附近的布兰斯菲尔德海峡挖出的五个淡紫色淡紫色标本中的富含脂质的海绵提取物的脂肪酸组成，并使用气相色谱-质谱-火焰电离检测法对其进行了分析。此外，使用光化学发光法测定了这些提取物的抗氧化活性。与常见的脂肪酸一起，化学分析显示出非常长链的脂肪酸（C22，C24）。两种物种和同一物种的不同标本之间的脂肪酸水平均存在差异。观察到的差异似乎与标本的生境深度无关，而是表明相关微生物组内的差异。此外，这些海绵提取物显示出抗氧化活性，证实它们含有能清除自由基的脂质化合物。

著录项

  • 来源
    《Polar biology》 |2015年第10期|1605-1612|共8页
  • 作者

    Botic Tanja; Coer Darija; Anesi Andrea; Guella Graziano; Sepcic Kristina; Janussen Dorte; Kersken Daniel; Knez Zeljko;

  • 作者单位

    Univ Maribor, Fac Chem & Chem Engn, Lab Separat Proc & Prod Design, Maribor 2000, Slovenia;

    Univ Maribor, Fac Chem & Chem Engn, Lab Separat Proc & Prod Design, Maribor 2000, Slovenia;

    Univ Trento, Dept Phys, Bioorgan Chem Lab, I-38123 Povo, Trento, Italy;

    Univ Trento, Dept Phys, Bioorgan Chem Lab, I-38123 Povo, Trento, Italy;

    Univ Ljubljana, Biotech Fac, Dept Biol, Ljubljana 1000, Slovenia;

    Senckenberg Res Inst, Dept Marine Zool, D-60325 Frankfurt, Germany|Natl Museum, D-60325 Frankfurt, Germany;

    Senckenberg Res Inst, Dept Marine Zool, D-60325 Frankfurt, Germany|Natl Museum, D-60325 Frankfurt, Germany;

    Univ Maribor, Fac Chem & Chem Engn, Lab Separat Proc & Prod Design, Maribor 2000, Slovenia;

  • 收录信息
  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类
  • 关键词

    Long-chain fatty acid; Deep-sea; Antarctic Porifera; Latrunculia biformis; Latrunculia bocagei; Antioxidant activity;

    机译：长链脂肪酸;深海;南极Porifera;双峰乳杆菌;博卡特乳杆菌;抗氧化活性;

相似文献

  • 外文文献
  • 中文文献
  • 专利
获取原文

客服邮箱：kefu@zhangqiaokeyan.com

京公网安备：11010802029741号 ICP备案号：京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有

  • 客服微信

  • 服务号