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Nutrient value of fish manure waste on lactic acid fermentation by Lactobacillus pentosus

机译：乳酸乳酸乳酸乳酸发酵鱼粪废物的营养价值

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摘要

The aim of this work was to study the feasibility of using fish manure waste as a nutrient source for lactic acid fermentation. Fish waste contains nitrogen and minerals that could support the growth of lactic acid bacteria (LAB), making it a good candidate as the nutrient source for lactic acid fermentation. Two different fish manure wastes, from Nile tilapia and channel catfish aquaculture, were investigated for their performance on different sugar substrates. Both fish waste types showed low efficiency in the direct fermentation of glucose, but satisfactory efficiencies in simultaneous saccharification and fermentation (SSF) of cellulosic materials, such as pure cellulose and paper sludge. The highest lactic acid yield obtained was 87% and 91%, with a corresponding volumetric productivity of 1.006 and 0.580g L-1 h(-1), and corresponding lactic acid concentration of 96 and 56 g L-1 for cellulose and paper sludge, respectively. Fish waste concentrations did not show much impact on lactic acid production for the SSF process, where increasing fish waste from 10 to 30 g L-1 resulted in less than a 10% yield increase. In the present study, fish manure waste was shown to be an effective and economic nutrient source for lactic acid production by SSF.
机译：这项工作的目的是研究使用鱼粪废物作为乳酸发酵的营养源的可行性。鱼类废物含有氮气和矿物质，可支持乳酸菌的生长（实验室），使其成为乳酸发酵的营养源的良好候选者。从尼罗河罗非鱼和沟道鲶鱼水产养殖的两种不同的鱼粪废物进行了调查，以便在不同的糖基材上进行性能。鱼类废物类型在葡萄糖直接发酵的情况下表现出低效率，但纤维素材料的同时糖化和发酵（SSF）的令人满意的效率，例如纯纤维素和纸污泥。获得的最高乳酸产率为87％和91％，相应的体积生产率为1.006和0.580g L-1 H（-1），以及用于纤维素和纸屑的96和56g L-1的相应乳酸浓度， 分别。鱼类废物浓度对SSF工艺的乳酸产生没有显示出大量影响，其中增加了10至30g L-1的鱼类废物导致屈服度的增加率小于10％。在本研究中，鱼粪废物被证明是SSF乳酸产生的有效和经济的营养源。

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  • 来源
    《RSC Advances》 |2018年第55期|共8页
  • 作者

    Shi Suan; Li Jing; Guan Wenjian; Blersch David;

  • 作者单位

    Auburn Univ Dept Biosyst Engn Auburn AL 36849 USA;

    Auburn Univ Alabama Ctr Paper &

    Bioresource Engn Auburn AL 36849 USA;

    Harvard Univ John A Paulson Sch Engn &

    Appl Sci Cambridge MA 02138 USA;

    Auburn Univ Dept Biosyst Engn Auburn AL 36849 USA;

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  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类 化学;
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