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首页> 外文期刊>Fuel >Recycle of algal residue suspension from acid-catalyzed hot-water extraction (AHE) as substrate of oleaginous yeast Cryptococcus sp.
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Recycle of algal residue suspension from acid-catalyzed hot-water extraction (AHE) as substrate of oleaginous yeast Cryptococcus sp.

机译：从酸催化热水萃取（AHE）中回收作为油质酵母隐球菌sp。底物的藻类残留物悬浮液。

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摘要

Algal residue after lipid extraction is problematic, yet its high nutrient content makes it a potential source for microbial cultivation. This study proved that algal residue suspension from acid-catalyzed hot-water extraction (AHE) can be used for oleaginous yeast cultivation. When AHE was applied into Nannochloropsis satina, lipid extraction efficiency over 90% was obtained versus the control extraction method using organic solvent, and a water layer containing algal residue nutrients was also produced. Cryptococcus sp. was cultivated in the algal residue suspensions from AHE and a control experiment, and growth was not observed in the control due to the toxicity of alcohol, whereas yeast can grow well in AHE (final cell density: 2.25 ± 0.4 g/L, lipid content: 23 ± 2.2%). The AHE method can be a good lipid extraction option for the recycling of algal residue, having the advantage of excluding organic solvents and dissolving residue without any extra processes.
机译：脂质提取后的藻残留物是有问题的，但是其高营养含量使其成为微生物培养的潜在来源。这项研究证明，酸催化热水提取（AHE）中的藻类残留物悬浮液可用于油质酵母培养。当将AHE施用到拟南芥中时，与使用有机溶剂的对照提取方法相比，脂质提取效率可达到90％以上，并且还会产生包含藻类残留营养物的水层。隐球菌在来自AHE和对照实验的藻类残留悬浮液中进行了培养，由于酒精的毒性，在对照中未观察到生长，而酵母可以在AHE中生长良好（最终细胞密度：2.25±0.4 g / L，脂质含量：23±2.2％）。 AHE方法可能是回收藻类残留物的良好脂质提取方法，其优点是无需任何额外处理即可排除有机溶剂和溶解残留物。

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  • 来源
    《Fuel》 |2015年第1期|222-225|共4页
  • 作者

    Yeong Hwan Seo; Mina Sung; Jong-In Han;

  • 作者单位

    Department of Civil and Environmental Engineering, KAIST, 373-1, Guseong-dong, Yuseong-gu, Daejeon 305-701, Republic of Korea;

    Department of Civil and Environmental Engineering, KAIST, 373-1, Guseong-dong, Yuseong-gu, Daejeon 305-701, Republic of Korea;

    Department of Civil and Environmental Engineering, KAIST, 373-1, Guseong-dong, Yuseong-gu, Daejeon 305-701, Republic of Korea;

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

    Algal residue; Nannochloropsis salina; Acid catalyzed hot-water lipid extraction; Cryptococcus sp.;

    机译：藻渣;拟南芥盐;酸催化热水脂质提取;隐球菌;

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