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hello peaple
please answer my question
how can we extract EPA and DHA from microalgae?
is EPA AND DHA ON THE oils of microalgae or on the dry powders?
if its on the powder,how can we extract it?
please answer me -
Alemarcs wants to know anti-biotic 6 years ago
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Arghya wants to know biotechnology 6 years ago
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Anto posted a question Considering that in the area of Mexico Gulf spill of last year there are natural strains active (for reference see my answer to this question): Is there somebody that will take care to collect and maintain them as bioremediation for future oil spill treatment? Are these strains the best available or with limited effort we can improve them? 6 years ago
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Hi Narsi, sorry for the late answer, your input did not arrived in my email. No I have no ideas on which type of strains could be , however if you follow these links http://news.harvard.edu/gazette/story/2010/10/microbes-to-the-rescue/?fb_xd_fragment#?=&cb=ff4acda8f0e5b&relation=parent&transport=fragment&frame=f1b3d2a73b29dff and http://www.whoi.edu/oceanus/viewArticle.do?id=95889§ionid=1000 we can understand that some "algae" dedicated for this scope is growing. I am located in Italy so ... however I suppose could be usefull to have some feedback from that area
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I suppose it can be. Induced or assisted hyper-accumulation involves the process of adding a conditioning fluid containing a chelator or another agent to soil to increase metal solubility or mobilization so that the plants can absorb them more easily. Although, in many cases natural hyperaccumulators are metallophyte plants that can tolerate and incorporate high levels of toxic metals.
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I suppose it could be said so. Phytovolatilization involves the process of uptake and transpiration of contaminants, primarily organic compounds, by plants. The contaminant, present in the water taken up by the plant, passes through the plant or is modified by the plant, and is released to the atmosphere (evaporates or vaporizes).
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Bioretention is the process in which contaminants and sedimentation are removed from stormwater runoff. That makes it a significant concept in bio remediation.
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Phytostimulation, also referred to as enhanced rhizosphere biodegradation, rhizodegradation, or plant-assisted bioremediation/degradation, is the breakdown of organic contaminants in the soil via enhanced microbial activity in the plant root zone or rhizosphere. This method is useful in removing organic contaminants, such as pesticides, aromatics, and polynuclear aromatic hydrocarbons (PAHs), from soil and sediments. Chlorinated solvents also have been targeted at demonstration sites.
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Mathu posted a question What are the non predatory fish used for bioremediation? 7 years ago
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But thats just the phase I mechanism of phytotransformation. Phase II is the stage where the plant biomolecules such as glucose and amino acids are added to the polarized xenobiotic to further increase the polarity (known as conjugation). Phase III involves the sequestration of the xenobiotic within the plant. The xenobiotics polymerize in a lignin-like manner and develop a complex structure that is sequestered in the plant. This ensures that the xenobiotic is safely stored, and does not affect the functioning of the plant. Hence, the plants reduce toxicity (with exceptions) and sequester the xenobiotics in phytotransformation.
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Joshwolf shared a video My Algae Biodiesel Presentation 6 years ago
I am proposing a new solution to the algae biofuel industry. Using electrical stimulation, I have created biodiesel from algae for $0.96/gallon. Come view this presentation of my project
in Biomass Power Production Biobutanol Biodiesel Algae Fuels Biomass to Liquid Batteries Biodiversity Agri Waste Management Anaerobic Digestion of Waste Bioremediation Batteries for Electric Vehicles Biopolymers and Bioplastics Biotechnology Biomimicry
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great job. do u have any paper published about it?
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Weheritage shared a video Green Asphalt patch 6 years ago
BioPower Mfg. is making asphalt from FOG & woodchips. Here is a pot hole in our parking lot in Foley, AL that we fixed
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Krishnendu posted a blog BIODEGRADATION OF LDPE 6 years ago
In recent year, there has been a marked increase in interest in biodegradable materials for use in packing, agriculture, marine, medicine & other areas. In particular, biodegradable polymer material(known as biocomposites)are of interest. This paper is intended to provide a brief outline of work that is under way in the area of biodegradable polymer research & development, the scientific theory behind these materials, areas in which this research is being applied & future work that awaits. Microbial degradation of polyethylene(LDPE)films has been described as materials not vulnerable to aerobic microbial attack. Principally this biodegradability depends on the capacity of different…
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Romel008 says 6 years ago
bioremediation is the good topic to study,well the most promising of bioremediation is to clean up the industrial waste water with the help of immobilized yeast cells
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Rajtilak says 7 years ago
The worm that turned on heavy metal
Researchers in South America have studied the viability of using earthworms to process hazardous material containing high concentrations of heavy metal for the bioremediation of old industrial sites, landfill and other potentially hazardous areas.
http://bit.ly/fUfhR7
Hello, there are various types of extraction methods, the most commonly used extraction method for pharma and food grade DHA or EPA is SC CO2 (supercritical fluid extraction). This method is highly efficient in terms of quantity and quality. The pressure and temperature depends on the combination of fatty acids. Some algae contains only EPA or DHA in higher amount and some algae contains both DHA and EPA. Trials are required to find out optimum temperature/pressure for a particular algae species. A Similar work has been carried out by University of Perugia, Italy. Here is a link to the published paper - http://www.isasf.net/fileadmin/files/Docs/Versailles/Papers/N4.pdf. This temperature and pressure given can be used as a benchmark.