Abstract:
:Although most algae cultivation systems are operated in suspended culture, an attached growth system can offer several advantages over suspended systems. Algal cultivation becomes light-limited as the microalgal concentration increases in the suspended system; on the other hand, sunlight penetrates deeper and stronger in attached systems owing to the more transparent water. Such higher availability of sunlight makes it possible to operate a raceway pond deeper than usual, resulting in a higher areal productivity. The attached system achieved 2.8-times higher biomass productivity and total lipid productivity of 9.1 g m(-2) day(-1) and 1.9 g m(-2) day(-1), respectively, than the suspended system. Biomass productivity can be further increased by optimization of the culture conditions. Moreover, algal biomass harvesting and dewatering were made simpler and cheaper in attached systems, because mesh-type substrates with attached microalgae were easily removed from the culture and the remaining treated wastewater could be discharged directly. When the algal biomass was dewatered using natural sunlight, the palmitic acid (C16:0) content increased by 16% compared with the freeze-drying method. There was no great difference in other fatty acid composition. Therefore, the attached system for algal cultivation is a promising cultivation system for mass biodiesel production.
journal_name
J Microbiol Biotechnoljournal_title
Journal of microbiology and biotechnologyauthors
Lee SH,Oh HM,Jo BH,Lee SA,Shin SY,Kim HS,Lee SH,Ahn CYdoi
10.4014/jmb.1406.06057subject
Has Abstractpub_date
2014-11-28 00:00:00pages
1566-73issue
11eissn
1017-7825issn
1738-8872pii
10.4014/jmb.1406.06057journal_volume
24pub_type
杂志文章abstract::Salmonellosis is a form of gastroenteritis caused by Salmonella infection. The main transmission route of salmonellosis has been identified as poorly cooked meat and poultry products contaminated with Salmonella. However, in recent years, the number of outbreaks attributed to contaminated raw produce has increased dra...
journal_title:Journal of microbiology and biotechnology
pub_type: 杂志文章
doi:10.4014/jmb.2007.07036
更新日期:2020-11-28 00:00:00
abstract::Glucagon, a peptide hormone produced by alpha-cells of Langerhans islets, is a physiological antagonist of insulin and stimulator of its secretion. In order to improve its bioactivity, we modified its structure at the C-terminus by amidation catalyzed by a recombinant amidase in bacterial cells. The human gene coding ...
journal_title:Journal of microbiology and biotechnology
pub_type: 杂志文章
doi:
更新日期:2008-06-01 00:00:00
abstract::This study compared the radioprotective effects of high-molecular-weight poly-gamma-glutamate (γ-PGA, average molecular mass 3,000 kDa) and a reduced form of glutathione (GSH, a known radioprotector) on calf thymus DNA damage. The radiation-induced DNA damage was measured on the basis of the decreased fluorescence int...
journal_title:Journal of microbiology and biotechnology
pub_type: 杂志文章
doi:10.4014/jmb.1712.12016
更新日期:2018-04-28 00:00:00
abstract::Mycophenolic acid (MPA) is an antibiotic produced by Penicillium brevicompactum. MPA has antifungal, antineoplastic, and immunosuppressive functions, among others. β-Hydroxy-β-methylglutaryl-CoA (HMG-CoA) lyase is a key enzyme in the bypass metabolic pathway. The inhibitory activity of HMG-CoA lyase increases the MPA ...
journal_title:Journal of microbiology and biotechnology
pub_type: 杂志文章
doi:10.4014/jmb.1603.03038
更新日期:2016-11-28 00:00:00
abstract::In Caenorhabditis elegans, SHN-1 is the homologue of SHANK, a scaffolding protein. In this study, we determined the molecular basis for SHN-1/SHANK in the regulation of innate immune response to fungal infection. Mutation of shn-1 increased the susceptibility to Candida albicans infection and suppressed the innate imm...
journal_title:Journal of microbiology and biotechnology
pub_type: 杂志文章
doi:10.4014/jmb.2006.06025
更新日期:2020-11-28 00:00:00
abstract::Scientific research regarding the use of live bacterial cells for therapeutic purposes has been rapidly growing over the years and has generated considerable interest to scientists and health professionals. Probiotics are defined as essential live microorganisms which, when administered in adequate amounts, confer a h...
journal_title:Journal of microbiology and biotechnology
pub_type: 杂志文章,评审
doi:10.4014/jmb.1003.03020
更新日期:2010-10-01 00:00:00
abstract::During the fermentative production of 1,3-propanediol under high substrate concentrations, accumulation of intracellular 3-hydroxypropionaldehyde will cause premature cessation of cell growth and glycerol consumption. Discovery of oxidoreductases that can convert 3- hydroxypropionaldehyde to 1,3-propanediol using NADP...
journal_title:Journal of microbiology and biotechnology
pub_type: 杂志文章
doi:10.4014/jmb.1307.07015
更新日期:2013-12-01 00:00:00
abstract::Because of its elevated cellulolytic activity, the filamentous fungus Trichoderma harzianum has a considerable potential in biomass hydrolysis applications. Trichoderma harzianum cellobiohydrolase I (ThCBHI), an exoglucanase, is an important enzyme in the process of cellulose degradation. Here, we report an easy singl...
journal_title:Journal of microbiology and biotechnology
pub_type: 杂志文章
doi:10.4014/jmb.1010.10037
更新日期:2011-08-01 00:00:00
abstract::To develop a natural fungicide against Botrytis cinerea and Colletotrichum gloeosporioides, a total of 25 essential oils were tested for their fumigant activity against post-harvest pathogens. The vaporous phases of oils were treated to each fungus on potato dextrose agar medium in half-plate separated Petri plates at...
journal_title:Journal of microbiology and biotechnology
pub_type: 杂志文章
doi:
更新日期:2007-09-01 00:00:00
abstract::Fungal biomass and fungal extract of the nonpathogenic fungus Neurospora crassa were successfully used as reducing agents for the biosynthesis of platinum nanoparticles (PtNPs). The experiment was carried out by exposing the fungal biomass or the fungal extract to a 0.001 M precursor solution of hexachloroplatinic(IV)...
journal_title:Journal of microbiology and biotechnology
pub_type: 杂志文章
doi:10.4014/jmb.1110.10085
更新日期:2012-07-01 00:00:00
abstract::Fungal cell walls and cell membranes are the main targets of antifungals. In this study, we report on the antifungal activity of an ethanol extract from Paeonia lactiflora against Candida albicans, showing that the antifungal activity is associated with the synergistic actions of preventing cell wall synthesis, enabli...
journal_title:Journal of microbiology and biotechnology
pub_type: 杂志文章
doi:10.4014/jmb.1611.11064
更新日期:2017-02-28 00:00:00
abstract::To achieve a higher succinic acid productivity and evaluate the industrial applicability, this study used Mannheimia succiniciproducens LPK7 (knock-out: lahA, pflB, pta-ackA), which was recently designed to enhance the productivity of succinic acid and reduce by-product secretion. Anaerobic continuous fermentation of ...
journal_title:Journal of microbiology and biotechnology
pub_type: 杂志文章
doi:
更新日期:2008-05-01 00:00:00
abstract::A xylanase-producing thermophilic strain, Geobacillus sp. TC-W7, was isolated from a hot spring in Yongtai (Fuzhou, China). Subsequently, the xylanase gene that encoded 407 amino acids was cloned and expressed. The recombinant xylanase was purified by GST affinity chromatography and exhibited maximum activity at 75 de...
journal_title:Journal of microbiology and biotechnology
pub_type: 杂志文章
doi:10.4014/jmb.1203.03045
更新日期:2012-10-01 00:00:00
abstract::Hrr25, a casein kinase 1 δ/ε homolog in budding yeast, is essential to set up mono-orientation of sister kinetochores during meiosis. Hrr25 kinase activity coordinates sister chromatid cohesion via cohesin phosphorylation. Here, we investigated the prophase role of Hrr25 using the auxin-inducible degron system and by ...
journal_title:Journal of microbiology and biotechnology
pub_type: 杂志文章
doi:10.4014/jmb.1701.01016
更新日期:2017-06-28 00:00:00
abstract::It has been well known that the use of Saccharomyces cerevisiae can cause fungemia in critically ill patients and flavone shows an antimicrobial effect on S. cerevisiae. Therefore, we have investigated the activities of thirteen flavone analogues on S. cerevisiae in our studies. Because flavonoids including flavones h...
journal_title:Journal of microbiology and biotechnology
pub_type: 杂志文章
doi:
更新日期:2007-03-01 00:00:00
abstract::Tetanus is a specific infectious disease, which is often associated with catastrophic events such as earthquakes, traumas, and war wounds. The obligate anaerobe Clostridium tetani is the pathogen that causes tetanus. Once the infection of tetanus progresses to an advanced stage within the wounds of limbs, the rates of...
journal_title:Journal of microbiology and biotechnology
pub_type: 杂志文章
doi:10.4014/jmb.1205.05063
更新日期:2013-01-01 00:00:00
abstract::A bacterium, Pseudomonas aeruginosa BM114, capable of accumulating a blend of medium-chain-length (MCL)- and short-chain-length (SCL)-polyhydroxyalkanoic acid (PHA), was isolated. Salicylic acid (SA), without being metabolized, was found to specifically inhibit only the accumulation of MCL-PHA without affecting cell g...
journal_title:Journal of microbiology and biotechnology
pub_type: 杂志文章
doi:
更新日期:2007-12-01 00:00:00
abstract::To increase the availability of microalgae as producers of valuable compounds, it is necessary to develop novel systems for gene expression regulation. Among the diverse expression systems available in microalgae, none are designed to induce expression by low temperature. In this study, we explored a cold-inducible sy...
journal_title:Journal of microbiology and biotechnology
pub_type: 杂志文章
doi:10.4014/jmb.2007.07024
更新日期:2020-11-28 00:00:00
abstract::Ralstonia solanacearum causes bacterial wilt in a wide variety of host plant species and produces a melanin-like blackish-brown pigment in stationary phase when grown in minimal medium supplemented with tyrosine. To study melanin production regulation in R. solanacearum, five mutants exhibiting overproduction of melan...
journal_title:Journal of microbiology and biotechnology
pub_type: 杂志文章
doi:10.4014/jmb.1705.05049
更新日期:2017-09-28 00:00:00
abstract::Multidomain proteins for the biochemical analysis of the scouring efficiency of cotton fabrics were constructed by the fusion of a reporter moiety in the N-terminal and the cellulose binding domain (CBD) in the C-terminal. Based on the specific binding of the CBD of Cellulomonas fimi exoglucanase (Cex) to crystalline ...
journal_title:Journal of microbiology and biotechnology
pub_type: 杂志文章
doi:
更新日期:2008-03-01 00:00:00
abstract::Bacterial resistance to antibiotics has been emerged as a major health problem in the recent years. Silver nanoparticles (AgNPs) have been known to have an inhibitory effect to the bacterial growth, however, the strength of this antibacterial activity in correlation with the physical properties of these AgNPs has bare...
journal_title:Journal of microbiology and biotechnology
pub_type: 杂志文章
doi:10.4014/jmb.1806.05089
更新日期:2018-07-19 00:00:00
abstract::Pseudomonas aeruginosa is an opportunistic human pathogen that produces and secretes exopolysaccharides (EPS), in which cells are embedded to form a highly organized community structure called biofilm. Here, we characterized the role of cyclic diguanylate (c-di-GMP) and EPS (PEL) overproduction in the wspF mutant phen...
journal_title:Journal of microbiology and biotechnology
pub_type: 杂志文章
doi:
更新日期:2008-07-01 00:00:00
abstract::Inactivation of Escherichia coli O157:H7 and Salmonella typhimurium was evaluated on inoculated chicken by aqueous chlorine dioxide (ClO2) treatment. Chicken samples were inoculated with 6-7 log CFU/g of Escherichia coli O157:H7 and Salmonella typhimurium, respectively. The chicken samples were then treated with 0, 50...
journal_title:Journal of microbiology and biotechnology
pub_type: 杂志文章
doi:
更新日期:2008-04-01 00:00:00
abstract::A phosphate-solubilizing bacterial strain isolated from Hippophae rhamnoides rhizosphere was identified as Rahnella sp. based on its phenotypic features and 16S rRNA gene sequence. The bacterial strain showed the growth characteristics of a cold-adapted psychrotroph, with the multiple plant growth-promoting traits of ...
journal_title:Journal of microbiology and biotechnology
pub_type: 杂志文章
doi:
更新日期:2010-12-01 00:00:00
abstract::Trimethylamine (TMA) is a well-known off-odor compound in fish and fishery products and is a metabolic product of trimethylamine N-oxide (TMAO) generated by the enzymatic action of microorganisms. The off-odor is a factor that can debase the value of fish and fishery products. The present study aimed to remove TMA usi...
journal_title:Journal of microbiology and biotechnology
pub_type: 杂志文章
doi:10.4014/jmb.2005.05007
更新日期:2020-10-28 00:00:00
abstract::Rhodococcus sp. JDC-11, capable of utilizing di-n-butyl phthalate (DBP) as the sole source of carbon and energy, was isolated from sewage sludge and confirmed mainly based on 16S rRNA gene sequence analysis. The optimum pH, temperature, and agitation rate for DBP degradation by Rhodococcus sp. JDC-11 was 8.0, 30 degre...
journal_title:Journal of microbiology and biotechnology
pub_type: 杂志文章
doi:10.4014/jmb.1004.04034
更新日期:2010-10-01 00:00:00
abstract::Acetic acid is indirectly involved in cell center metabolism, and acetic acid metabolism is the core of central metabolism, affecting and regulating the production of bacteriocin. Bacteriocin is a natural food preservative that has been used in the meat and dairy industries and winemaking. In this paper, the effects o...
journal_title:Journal of microbiology and biotechnology
pub_type: 杂志文章,评审
doi:10.4014/jmb.1905.05060
更新日期:2019-09-28 00:00:00
abstract::The aim of this study was to analyze the chemical composition of 14 kinds of citrus oils and to test their biological activities. Citrus essential oils were obtained by steam distillation from immature fruits collected from Jeju Island and were analyzed using gas chromatograph (GC)- flame ionization detectors (FID) an...
journal_title:Journal of microbiology and biotechnology
pub_type: 杂志文章
doi:
更新日期:2008-01-01 00:00:00
abstract::A gene (acas) designated as alpha-amylase was cloned from Arthrobacter chlorophenolicus A6. The multiple amino acid sequence analysis and functional expression of acas revealed that this gene really encoded an amylosucrase (ASase) instead of alpha-amylase. In fact, the recombinant enzyme exhibited typical ASase activi...
journal_title:Journal of microbiology and biotechnology
pub_type: 杂志文章
doi:10.4014/jmb.1201.01056
更新日期:2012-09-01 00:00:00
abstract::Swainsonine (SW) is the principal toxic ingredient of locoweed plants that causes locoism characterized by a disorder of the nervous system. It has also received widespread attention in the medical field for its beneficial anticancer and antitumor activities. Endophytic fungi, Alternaria sect. Undifilum oxytropis isol...
journal_title:Journal of microbiology and biotechnology
pub_type: 杂志文章,评审
doi:10.4014/jmb.1709.09003
更新日期:2017-11-28 00:00:00