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首页> 外文期刊>Food microbiology >Prokaryotic community composition in alkaline-fermented skate (Raja pulchra)
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Prokaryotic community composition in alkaline-fermented skate (Raja pulchra)

机译：碱性发酵溜冰鞋（Raja pulchra）的原核生物组成

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摘要

Prokaryotes were extracted from skates and fermented skates purchased from fish markets and a local manufacturer in South Korea. The prokaryotic community composition of skates and fermented skates was investigated using 16S rRNA pyrosequencing. The ranges for pH and salinity of the grinded tissue extract from fermented skates were 8.4-8.9 and 1.6-6.6%, respectively. Urea and ammonia concentrations were markedly low and high, respectively, in fermented skates compared to skates. Species richness was increased in fermented skates compared to skates. Dominant and predominant bacterial groups present in the fermented skates belonged to the phylum Firmicutes, whereas those in skates belonged to Gammaproteobacteria. The major taxa found in Firmicutes were Atopostipes (Carnobacteriaceae, Lactoba-cillales) and/or Tissierella (Tissierellaceae, Tissierellales). A combination of RT-PCR and pyrosequencing for active bacterial composition showed that the dominant taxa i.e., Atopostipes and Tissierella, were active in fermented skate. Those dominant taxa are possibly marine lactic acid bacteria. Marine bacteria of the taxa Lactobacillales and/or Clostridia seem to be important in alkaline fermentation of skates.
机译：原核生物是从溜冰鞋和发酵的溜冰鞋中提取的，溜冰鞋是从鱼类市场和韩国的一家本地制造商处购买的。使用16S rRNA焦磷酸测序技术研究了溜冰鞋和发酵溜冰鞋的原核生物组成。来自发酵溜冰鞋的磨碎的组织提取物的pH和盐度范围分别为8.4-8.9和1.6-6.6％。与冰鞋相比，发酵冰鞋中的尿素和氨浓度分别明显偏低和偏高。与冰鞋相比，发酵冰鞋的物种丰富度增加了。发酵的溜冰鞋中存在的主要和主要细菌群属于坚韧菌门，而溜冰鞋中的细菌则属于丙种细菌。在Firmicutes中发现的主要类群是Atopostipes（食肉杆菌科，乳杆菌科）和/或Tissierella（Tissierellaceae，Tissierellales）。 RT-PCR和焦磷酸测序相结合的活性细菌组成表明，在发酵溜冰鞋中，主要的类群即Atopostipes和Tissierella具有活性。这些主要的分类单元可能是海洋乳酸菌。分类单元乳杆菌和/或梭状芽胞杆菌的海洋细菌似乎在溜冰鞋的碱性发酵中很重要。

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  • 来源
    《Food microbiology》 |2017年第2期|72-82|共11页
  • 作者

    Gwang Il Jang; Gahee Kim; Chung Yeon Hwang; Byung Cheol Cho;

  • 作者单位

    Microbial Oceanography Laboratory, School of Earth and Environmental Sciences and Research Institute of Oceanography, Seoul National University, Republic of Korea;

    Microbial Oceanography Laboratory, School of Earth and Environmental Sciences and Research Institute of Oceanography, Seoul National University, Republic of Korea;

    Division of Life Sciences, Korea Polar Research Institute, Incheon, Republic of Korea;

    Microbial Oceanography Laboratory, School of Earth and Environmental Sciences and Research Institute of Oceanography, Seoul National University, Republic of Korea;

  • 收录信息 美国《科学引文索引》(SCI);美国《化学文摘》(CA);
  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类
  • 关键词

    Prokaryotes; Community composition; Fermented skate; Pyrosequencing;

    机译：原核生物;社区组成;发酵溜冰鞋;焦磷酸测序;

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