Navigation Links
Progress of arachidonic acid biosynthesis in microorganisms
Date:5/28/2012

Single cell oils (SCO), produced by and extracted from some single-celled microorganisms, are featured with high levels of the major very long chain polyunsaturated fatty acids (PUFA). SCO are essential for health and potential sources of bio-diesel. There has been a long history of interest in the exploitation of microorganisms as oil and fat providers, due to the continuing diminution of arable land and climate change making animal and plant sourced oils even more limited. However, such endeavor has been progressing hardly, mostly because the efficiencies of oil synthesis by microorganisms are normally too low to be applied in industry at a reasonable price.

The article "Ion-beam-mutation breeding of an arachidonic acid biosynthesis microorganism and its industrial fermentation control" , by Z. L. Yu and Q. Huang et al., from the Hefei Institutes of Physical Science, Chinese Academy of Sciences, published in Chinese Science Bulletin (2012) 57: 883, has started to shed light on this issue. Cells of the oil-producing fungus Mortierella alpine were genetically modified by their patented technology, known as ion beam biotechnology, and screened using procedures tailored for oil yield. They obtained one strain: 50% of its biomass was fatty acids, of which 70% is arachidonic acid.

In their report "Fats and oils in human nutrition" released in 1993, the FAO and WHO suggested that diet for infants, especially preterm infants and infants with insufficient breast-feeding, should be supplemented with adequate amounts of fatty acids with composition corresponding to fatty acids contained in breast-milk. AA and docosahexaenoic acid (DHA) are particularly important for brain development but only found in breast milk naturally. Therefore it has become a long-term focus developing AA-rich oil in microorganisms.

Over two decades ago, the authors started the project by implanting energetic ions, generated by an ion source and accelerated to certain
'/>"/>

Contact: Feng Huiyun
zlyu@ipp.ac.cn
Science in China Press
Source:Eurekalert

Page: 1 2 3

Related biology news :

1. Stem cell research paves way for progress on dealing with Fragile X retardation
2. Research!America says house funding levels for FY13 could undermine medical progress
3. Europe meets to discuss progress in energy research and development
4. North Carolina-based genetic resources fuel big scientific progress
5. Genetic factors can predict the progression of Parkinsons disease
6. Progress towards developing plants that accommodate climate change
7. Elsevier organizes Progress in Nuclear Energy and Education Conference
8. Notre Dame researchers report progress on compound to treat neurological diseases
9. Southampton researchers awarded $28 million to progress pioneering nutrition and respiratory research
10. New NJIT book examines hemophilia and consequences of medical progress
11. Gene variant increases fatty liver risk and fibrosis progression
Post Your Comments:
*Name:
*Comment:
*Email:
(Date:9/15/2014)... is a vital source of energy for both plants ... its way into the cell could lead to the ... increase in the amount of fruits and vegetables farmers ... uncovered one of these "pathways" into the cell by ... a strand of spider silk. , To determine the ...
(Date:9/15/2014)... issue of the journal Science comes out, ... Montana and even the Netherlands, thanks to the type ... norm in these connected times. Yes, the research was ... in biology, medicine, biotechnology and agriculture. It could save ... that one, that one knew another one, and brilliant ...
(Date:9/15/2014)... reef ecologists fears that reef biodiversity may not provide ... once thought. , In an international study published today, ... for Coral Reef Studies (Coral CoE) says we need ... reef ecosystems. , In coral reefs, just as in ... the ecosystem safe and functioning. , Professor Bellwood ...
Breaking Biology News(10 mins):X-rays unlock a protein's SWEET side 2X-rays unlock a protein's SWEET side 3Collaboration drives achievement in protein structure research 2Specialized species critical for reefs 2
... of infection in some hospital wards varies dramatically according ... A University of Leeds-led team studied airflow in a ... two rows of up to 30 bedsby using tracer ... found ventilation in the ward was generally good when ...
... CITY, Calif. , April 16, 2013   DigitalPersona, ... solutions, today announced that Papa John,s restaurants in ... fingerprint biometrics to speed and secure employees, and managers, ... in northern China are using ...
... April 16, 2013 Studies have shown that about ... (HIV) have an elevated resting energy expenditure (REE). Their ... body temperature, and breathing. Most studies have been conducted ... small sample sizes. A team of researchers has sought ...
Cached Biology News:Energy efficiency could increase infection risks in hospital wards 2Energy efficiency could increase infection risks in hospital wards 3Papa John's Restaurants in China Speed and Secure Workflow with DigitalPersona Fingerprint Biometrics 2Women with HIV shown to have elevated resting energy expenditure 2
(Date:9/15/2014)... developed a technique for controlling the surface tension of ... door to a new generation of reconfigurable electronic circuits, ... fact that the oxide "skin" of the metal ... a surfactant, lowering the surface tension between the metal ... liquid metal alloy of gallium and indium. In base, ...
(Date:9/15/2014)... idea of fibers made of carbon nanotubes is neat, but ... The single-walled carbon nanotubes in new fibers created at Rice ... process designed by chemist Angel Mart and his colleagues. , ... results this month in the journal ACS Nano , ... together into a fiber. , Left to their own devices, ...
(Date:9/15/2014)... (PRWEB) September 15, 2014 Bioptigen ... deep imaging OCT system for the optical device metrology ... EnvisuTM S4410 SDOCT for Contact Lens Metrology ... standard and high complexity contact lens, IOL structures, and ... of a complete contact lens immersed in a hydration ...
(Date:9/15/2014)... Idaho , Sept. 15, 2014  iVinci Health ... only comprehensive Patient Revenue Management system, branded as VisitPay®, ... company also announced the launch of a new extension ... that provides an easy and convenient way for patients ... for balances owed by them and their families. ...
Breaking Biology Technology:Researchers control surface tension to manipulate liquid metals 2Rice rolls 'neat' nanotube fibers 2Rice rolls 'neat' nanotube fibers 3Bioptigen Introduces Deep Imaging OCT System for Contact Lens Metrology 2iVinci Health Raises $5M to Fuel National Expansion, Announces Launch of Personal Finance Portal for Healthcare 2iVinci Health Raises $5M to Fuel National Expansion, Announces Launch of Personal Finance Portal for Healthcare 3
... BEIJING , Feb. 8 /PRNewswire-Asia-FirstCall/ -- China Medical Technologies,Inc. (the "Company") ... participate at the,following investor conferences in March 2010 : , , Investor Conference ... Location, Rodman & Renshaw Annual ... ...
... , Full enrollment occurs five months ahead of ... 8 /PRNewswire-FirstCall/ - Resverlogix Corp. ("Resverlogix" or the "Company") ... Phase 2 clinical study of its lead drug RVX-208. "The ... full 5 months ahead of our original schedule, is a ...
... ... agency, announced today that it has been selected by Invida Group, the leading provider ... communications and public relations program. , ... Salem, MA (Vocus) February 8, 2010 -- LaVoie Group , ...
Cached Biology Technology:China Medical Technologies to Participate Investor Conferences in March 2010 2Resverlogix Completes Patient Recruitment for ASSERT Trial 2Resverlogix Completes Patient Recruitment for ASSERT Trial 3Resverlogix Completes Patient Recruitment for ASSERT Trial 4Invida Selects LaVoie Group as Public Relations Agency of Record 2Invida Selects LaVoie Group as Public Relations Agency of Record 3
...
... new Class II safety cabinets Heraeus HERAsafe KS ... user-orientated design. ,The new frameless slanted window ... area. The new front window design makes it ... large work aperture with a height of more ...
... has recently launched a custom synthesis ... (siRNA). Thermos siRNA molecules are: ... 2 DNA bases overhang at the ... Delivered fully deprotected and ready-to-use. ...
Mouse monoclonal [AZ24] to Polo like kinase ( Abpromise for all tested applications)....
Biology Products: