• 主题
高级搜索  >
历史搜索 清空历史
首页> 外文期刊>African Journal of Biotechnology >Effect of salinity on cell growth and -carotene production in Dunaliella sp. isolates from Urmia Lake in northwest of Iran
【24h】

Effect of salinity on cell growth and -carotene production in Dunaliella sp. isolates from Urmia Lake in northwest of Iran

机译：盐度对细胞生长和-Carotene SP中的影响。来自伊朗西北乌利米湖的孤立

获取原文
           
页面导航
  • 摘要
  • 著录项
  • 相似文献
  • 相关主题

摘要

Urmia Lake, the second largest hyper-saline lake by area in the world, has fluctuated in salinity over time, but recently, it has reached a maximum of 360 g/l.Dunaliella?is a type of halophile green-orange microalgae especially found in lake and salty fields and is known for its antioxidant activity; because of its ability to create large amount of carotenoids. In the present study,?Dunaliella?sp. isolates from hyper- saline Urmia Lake water were cultured in modified Johnson media and were treated at different salinities (1, 2 and 3 M NaCl), then their cell proliferation rate and β-carotene production were studied. In order to determine the optimal salinity required for the highest β-carotene accumulation, cell count?of?Dunaliella?sp. isolates; total carotenoids and concentration of the β-carotene were determined by direct microscopic counting and spectrophotometry. In the samples with different salinities,?the cell count and the β-carotene content of?Dunaliella?sp. ranged between?0.53 and 2.21x106?cell.ml-1?and 0.2 to 11.4 pg.cell-1, respectively. At the end of the experiments, the maximum?cell content mean?and the highest β-carotene content mean were obtained at 1 and 3 M NaCl concentrations, as 1.68 x 106?cell.ml-1?and 8.94 pg.cell-1, respectively.?Keywords:?Dunaliella, microalgae, Urmia Lake,?chlorophyceae, β-carotene.
机译：乌利亚湖，第二大盐水湖由世界各地，在盐度上波动随着时间的推移，但最近，它已达到360克/ L.dunaliella？是一种嗜烟绿橙色微藻，特别是在湖泊和咸的领域，以其抗氧化活性而闻名;由于其产生大量类胡萝卜素的能力。在本研究中，？Dunaliella？SP。来自盐水荨麻疹水的分离物在改良的Johnson培养基中培养，并在不同的盐水（1,2和3M NaCl）处理，然后研究了它们的细胞增殖率和β-胡萝卜素。为了确定最高β-胡萝卜素积累所需的最佳盐度，细胞计数？Dunaliella？SP。分离;通过直接微观计数和分光光度法测定β-胡萝卜素的总类胡萝卜素和浓度。在具有不同盐度的样品中，？细胞计数和β-胡萝卜素含量？dunaliella？sp。在Δ0.53和2.21x106之间进行范围，分别为0.53和2.21x106？和0.2至11.4 pg.cell-1。在实验结束时，最大？细胞含量意味着？并且在1和3M NaCl浓度下获得最高的β-胡萝卜素含量平均值，如1.68×10 6？Cell.ML-1？和8.94 PG.Cell-1 ，分别为:::::?dunaliella，微藻，荨麻疹，？叶绿素，β-胡萝卜素。

著录项

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