Abstract：
:Hydrothermal acid (combined with autoclaving and nitric acid) pretreatment was applied to Nannochloropsis salina as a cost-effective yet efficient way of lipid extraction from wet biomass. The optimal conditions for this pretreatment were determined using a statistical approach, and the roles of nitric acid were also determined. The maximum lipid yield (predicted: 24.6%; experimental: 24.4%) was obtained using 0.57% nitric acid at 120°C for 30min through response surface methodology. A relatively lower lipid yield (18.4%) was obtained using 2% nitric acid; however, chlorophyll and unsaturated fatty acids, both of which adversely affect the refinery and oxidative stability of biodiesel, were found to be not co-extracted. Considering its comparable extractability even from wet biomass and ability to reduce chlorophyll and unsaturated fatty acids, the hydrothermal nitric acid pretreatment can serve as one direct and promising route of extracting microalgae oil.
journal_name
Bioresour Technoljournal_title
Bioresource technologyauthors
Lee I,Park JY,Choi SA,Oh YK,Han JIdoi
10.1016/j.biortech.2014.08.101subject
Has Abstractpub_date
2014-11-01 00:00:00pages
138-142eissn
0960-8524issn
1873-2976pii
S0960-8524(14)01217-6journal_volume
172pub_type
杂志文章abstract：:This work addresses the economic and environmental performance of integrated biorefineries based on sugarcane juice and residues. Four multiproduct scenarios were considered; two from sugar mills and the others from ethanol distilleries. They are integrated biorefineries producing first (1G) and second (2G) generation...
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pub_type： 杂志文章
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abstract：:The organic fraction of municipal solid waste (OFMSW) is an abundant and sustainable substrate for the anaerobic digestion (AD) process, yet ammonia released during OFMSW hydrolysis could result in suboptimal biogas production. Acclimatized ammonia tolerant microorganisms offer an efficient way to alleviate ammonia in...
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更新日期：2020-04-01 00:00:00
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更新日期：2020-12-01 00:00:00
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journal_title：Bioresource technology
pub_type： 杂志文章
doi：10.1016/j.biortech.2014.06.094
更新日期：2014-10-01 00:00:00
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journal_title：Bioresource technology
pub_type： 杂志文章
doi：10.1016/j.biortech.2014.05.006
更新日期：2014-08-01 00:00:00
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journal_title：Bioresource technology
pub_type： 杂志文章
doi：10.1016/j.biortech.2018.03.041
更新日期：2018-07-01 00:00:00
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journal_title：Bioresource technology
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doi：10.1016/j.biortech.2012.03.051
更新日期：2012-07-01 00:00:00
abstract：:The role of the hydrolytic stage in high solids temperature phased anaerobic digestion was investigated with a mixture of cattle slurry and maize silage with variable ratios (100, 70 and 30% volatile solids coming from cattle slurry). It was incubated for 48 h at 37, 55, 65 and 72 °C. Soluble chemical oxygen demand an...
journal_title：Bioresource technology
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doi：10.1016/j.biortech.2018.03.037
更新日期：2018-07-01 00:00:00
abstract：:Feasibility of producing (R)-3-hydroxybutyric acid ((R)-3-HB) using wild type Azohydromonas lata and its mutants (derived by UV mutation) was investigated. A. lata mutant (M5) produced 780 m g/l in the culture broth when sucrose was used as the carbon source. M5 was further studied in terms of its specificity with var...
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pub_type： 杂志文章
doi：10.1016/j.biortech.2011.03.073
更新日期：2011-06-01 00:00:00
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更新日期：2012-01-01 00:00:00
abstract：:Membrane fouling alleviation by addition of poly dimethyl diallyl ammonium chloride (PDMDAAC) and magnetic powder (Fe3O4) was investigated. It was found that magnetic powder associated with PDMDAAC had a good performance on mitigation of membrane fouling, improvement in dehydrogenase activity and enhancement of biomas...
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更新日期：2016-06-01 00:00:00
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更新日期：2014-03-01 00:00:00
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更新日期：2015-11-01 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：2009-12-01 00:00:00
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pub_type： 杂志文章
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更新日期：2008-03-01 00:00:00
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pub_type： 杂志文章
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更新日期：2001-06-01 00:00:00
abstract：:Bacteria play an important role in organic matter degradation and maturity during aerobic composting. This study analyzed composting with or without a membrane cover in laboratory-scale aerobic composting reactor systems. 16S rRNA gene analysis was used to study the bacterial community succession during composting. Th...
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更新日期：2018-07-01 00:00:00
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更新日期：2020-12-01 00:00:00
abstract：:Six biomass pretreatment processes to convert switchgrass to fermentable sugars and ultimately to cellulosic ethanol are compared on a consistent basis in this technoeconomic analysis. The six pretreatment processes are ammonia fiber expansion (AFEX), dilute acid (DA), lime, liquid hot water (LHW), soaking in aqueous ...
journal_title：Bioresource technology
pub_type： 杂志文章
doi：10.1016/j.biortech.2011.07.051
更新日期：2011-12-01 00:00:00
abstract：:Microalgal starch and lipids, carbon-based storage molecules, are useful as potential biofuel feedstocks. In this work, cultivation strategies maximising starch and lipid formation were established by developing a multi-parameter kinetic model describing microalgal growth as well as starch and lipid formation, in conj...
journal_title：Bioresource technology
pub_type： 杂志文章
doi：10.1016/j.biortech.2017.05.177
更新日期：2017-10-01 00:00:00
abstract：:The 2-keto-L-gulonic acid (2-KLG) is the direct precursor for industrial vitamin C production. The main biosynthetic method for 2-KLG production is the classical two-step fermentation route. However, disadvantages of this method are emerging, including high consumption of energy, difficulties in strain screening, comp...
journal_title：Bioresource technology
pub_type： 杂志文章
doi：10.1016/j.biortech.2020.124069
更新日期：2020-12-01 00:00:00
