Abstract：
:During the fermentation process, dissolved oxygen values and carbon-to-nitrogen ratios are critical factors influencing DHA productivity. This study employed an intermittent oxygen feeding method to maintain a 50% dissolved oxygen level and produced a dissolved oxygen fluctuation environment to facilitate both Aurantiochytrium limacinum SR21 growth and lipid accumulation. Study results indicated that at a 1.25 C:N ratio and medium composition of 100gL(-1) glycerol, 40gL(-1) yeast extract, and 40gL(-1) peptone, A. limacinum SR21 achieved biomass at 61.76gL(-1), lipid content at 65.2%, DHA concentration at 20.3gL(-1), and DHA productivity at 122.62mgL(-1)h(-1), this result were better than most similar researches. Dissolved oxygen fluctuation environment also altered the fatty acid composition of A. limacinum SR21. In the late period of the fermentation process, C16:0 fatty acid ratios decreased significantly to below 5%, and C22:6 fatty acid ratios increased to 70%.
journal_name
Bioresour Technoljournal_title
Bioresource technologyauthors
Huang TY,Lu WC,Chu IMdoi
10.1016/j.biortech.2012.07.068subject
Has Abstractpub_date
2012-11-01 00:00:00pages
8-14eissn
0960-8524issn
1873-2976pii
S0960-8524(12)01115-7journal_volume
123pub_type
杂志文章abstract：:In biobed bioremediation systems (BBSs) with vermicomposts exposed to a high load of pesticides, 6 bacteria and 4 fungus strains were isolated, identified, and investigated to enhance the removal of pesticides. Three different mixtures of BBSs composed of vermicomposts made from greenhouse (GM), olive-mill (OM) and wi...
journal_title：Bioresource technology
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abstract：:In order to reach real operating conditions with consequent organic charge flow, a multi-channel reactor for Microbial Fuel Cells is designed. The feed-through double chamber reactor is a two-dimensional system with four parallel channels and Reticulated Vitreous Carbon as electrodes. Based on thermodynamical calculat...
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abstract：:Phytase production by Aspergillus niger F3 by solid state fermentation (SSF) on citrus peel was evaluated at pilot scale under different aeration conditions. The best airflow intensity was 1 VkgM (Lair kg medium(-1) min(-1)), which allowed to produce 65 units of phytases per gram in dry basis (65 Ug(-1) d.b.) as it re...
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abstract：:An efficient magnetic separation technology using Fe(3)O(4) nanoparticles was developed for harvesting marine microalgae Nannochloropsis maritima from culture broth. Recovery capacity of these nanoparticles was affected by microalgal growth phase and reached the peak value when the microalgal growth reached its maxima...
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journal_title：Bioresource technology
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更新日期：2014-08-01 00:00:00
abstract：:A study of the potential of autohydrolysis and alkaline extraction processes from corn stalks was performed for high purity hemicellulose extraction. The influence of process parameters on the purity of obtained hemicelluloses was analyzed. An experimental design was developed for the autohydrolysis treatments to dete...
journal_title：Bioresource technology
pub_type： 杂志文章
doi：10.1016/j.biortech.2011.09.139
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journal_title：Bioresource technology
pub_type： 杂志文章
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journal_title：Bioresource technology
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更新日期：2019-11-01 00:00:00
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journal_title：Bioresource technology
pub_type： 杂志文章
doi：10.1016/j.biortech.2015.07.056
更新日期：2015-11-01 00:00:00
abstract：:Co-liquefaction of municipal sewage sludge (MSS) and lignocellulosic biomass such as rice straw or wood sawdust at different mixing ratios and the characterization of the obtained bio-oil and bio-char were investigated. Synergistic effects were found during co-processing of MSS with biomass for production of bio-oil w...
journal_title：Bioresource technology
pub_type： 杂志文章
doi：10.1016/j.biortech.2017.12.018
更新日期：2018-03-01 00:00:00
abstract：:Ecological floating bed (EFB) is a green technology for treatment of micro-polluted wastewater. However, its nitrogen removal efficiency is still unsatisfactory. In this study, two EFBs with additional carbon source were established to explore biofilm carriers addition on nitrogen removal and greenhouse gas (GHG) emis...
journal_title：Bioresource technology
pub_type： 杂志文章,评审
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journal_title：Bioresource technology
pub_type： 杂志文章,评审
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更新日期：2020-08-01 00:00:00
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journal_title：Bioresource technology
pub_type： 杂志文章
doi：10.1016/j.biortech.2017.09.204
更新日期：2018-02-01 00:00:00
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journal_title：Bioresource technology
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更新日期：2015-02-01 00:00:00
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更新日期：2011-09-01 00:00:00
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abstract：:Bacterial reduction of selenium (Se) oxyanions (Se[VI] and Se[IV]) to elemental Se (Se[0]) is one of the major biogeochemical processes removing Se from agricultural drainage water and depositing Se in the sediment. This study was conducted to characterize Se-reducing bacterial populations in Lost Hills evaporation po...
journal_title：Bioresource technology
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doi：10.1016/j.biortech.2005.04.038
更新日期：2006-05-01 00:00:00
abstract：:The biochemical methane potential of steam exploded wheat straw was evaluated in a pilot plant under different temperature-time combinations. The optimum was obtained for 1 min and 220 °C thermal pretreatment (3.5 severity factor), resulting in a 20% increase in methane production respect non-treated straw. For more s...
journal_title：Bioresource technology
pub_type： 杂志文章
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更新日期：2013-09-01 00:00:00
abstract：:The main aim of this study was to separate heavy metals and yield crude bio-oil from a heavy metals hyperaccumulator harvest, Sedum plumbizincicola, through hydrothermal upgrading process. Parameters such as granularity, temperature, pressure, and duration were examined for their effect on the removal efficiency of he...
journal_title：Bioresource technology
pub_type： 杂志文章
doi：10.1016/j.biortech.2010.04.095
更新日期：2010-10-01 00:00:00
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pub_type： 杂志文章
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更新日期：2019-08-01 00:00:00
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journal_title：Bioresource technology
pub_type： 杂志文章
doi：10.1016/j.biortech.2015.03.134
更新日期：2015-01-01 00:00:00
abstract：:2-Methyltetrahydrofuran (MeTHF), a biomass-derived compound, is a promising medium for biocatalysis and organometallic reactions. The regioselective acylation of 8-chloroadenosine (8-Cl-Ado) and its analogs was carried out in MeTHF with immobilized Penicillium expansum lipase. The lipase displayed more than twofold hi...
journal_title：Bioresource technology
pub_type： 杂志文章
doi：10.1016/j.biortech.2012.04.104
更新日期：2012-08-01 00:00:00
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pub_type： 杂志文章
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更新日期：2012-10-01 00:00:00
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journal_title：Bioresource technology
pub_type： 杂志文章
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更新日期：2004-09-01 00:00:00
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journal_title：Bioresource technology
pub_type： 杂志文章
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更新日期：2010-01-01 00:00:00
abstract：:The necessity of costly co-enzyme B12 for the activity of glycerol dehydratase (GDHt) is considered as a major bottleneck in sustainable bioproduction of 1,3-propanediol (1,3-PD) from glycerol. Here, an E. coil Rosetta-dhaB1-dhaB2 strain was constructed by overexpressing a B12-independent GDHt (dhaB1) and its activati...
journal_title：Bioresource technology
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doi：10.1016/j.biortech.2020.124218
更新日期：2021-01-01 00:00:00
