Navigation Links
Biodiesel algae: Starvation diets damage health
Date:3/11/2013

It may be better to tolerate lower oil content in algae grown for biodiesel to boost growth and overall productivity, says research from the University of Sheffield.

The research shows that the commonly accepted method of depriving algae of key nutrients such as nitrogen in order to boost its oil content may be detrimental to overall oil yield in the long term.

"Total oil production depends not just on the oil content of the algal cells but how quickly the cells grow and multiply," says Dr Stephen Wilkinson of the University's Department of Chemical and Biological Engineering. "We found you get more oil production overall if you give the algae all nutrients they need to grow fast rather than trying to increase the oil in each cell by limiting the availability of nitrogen."

In a study funded by the Carbon Trust and US consulting engineering firm MWH Global, Dr Wilkinson, along with colleagues from the University of Manchester, examined a species of algae called Dunaliella salina at different cell densities grown at a range of temperatures to determine the rate of growth and lipid production.

Some samples were deprived of nitrogen, whilst others were allowed to grow naturally. During the course of the 4-week study the overall yield from the nitrogen starved crops was in fact lower than many of the crops that had been allowed to grow naturally.

Another key finding of the study was that productivity could also be increased by increasing cell density. The researchers used centrifugation to create more crowded algal cultures and were surprised to see that this these samples could still grow very well.

"Large-scale production of algal biofuels will need big ponds taking up a lot of space," says Dr Wilkinson, "so anything we can do to squeeze more oil out of a smaller land area is very important."

The study is published in the Journal of Chemical Technology and Biotechnology.


'/>"/>

Contact: Beck Lockwood
beck@campuspr.co.uk
University of Sheffield
Source:Eurekalert

Page: 1

Related biology news :

1. New uses for old tools could boost biodiesel output
2. Nutrient-sensing enzymes key to starvation response and survival in newborn mammals
3. Evidence contradicts idea that starvation caused saber-tooth cat extinction
4. Phosphorus starvation linked to symptoms of citrus disease Huanglongbing in new study
5. The effect of catch-up growth by various diets and resveratrol intervention on bone status
6. New study compares diets for weight management in obese children
7. Researchers find potential dark side to diets high in beta-carotene
8. Pasta made from green banana flour a tasty alternative for gluten-free diets
9. Sugar-sweetened drinks are not replacing milk in kids diets
10. Diets high in salt could deplete calcium in the body: UAlberta research
11. Feces fossils yield new insights into ancient diets and thrifty genes
Post Your Comments:
*Name:
*Comment:
*Email:
(Date:4/14/2016)... , April 14, 2016 ... and Malware Detection, today announced the appointment of ... the new role. Goldwerger,s leadership appointment comes ... the heels of the deployment of its platform at ... behavioral biometric technology, which discerns unique cognitive and physiological ...
(Date:3/31/2016)... , March 31, 2016 ... ) ("LegacyXChange" or the "Company") LegacyXChange is ... users of its soon to be launched online site ... https://www.youtube.com/channel/UCyTLBzmZogV1y2D6bDkBX5g ) will also provide potential shareholders ... of DNA technology to an industry that is notorious ...
(Date:3/29/2016)... Florida , March 29, 2016 ... the "Company") LegacyXChange "LEGX" and SelectaDNA/CSI Protect are pleased ... in ink used in a variety of writing instruments, ... Buyers of originally created collectibles from athletes on LegacyXChange ... forensic analysis of the DNA. Bill ...
Breaking Biology News(10 mins):
(Date:5/2/2016)... 2, 2016 Q BioMed Inc. ... partner Mannin Research Inc. will be attending the Association ... place from May 1-5, 2016 in Seattle ... with its vendors and research partners. The meeting provides ... and other collaborative opportunities for the MAN-01 program for ...
(Date:4/29/2016)... , ... April 29, 2016 , ... ... personalized pain medicine, is excited to announce the launch of the Proove ... health studies, volunteerism, and education to promote the use of personalized medicine for ...
(Date:4/29/2016)... (PRWEB) , ... April 29, 2016 , ... Intelligent Implant ... by the FDA via 510(k) for sale in the United States. These components ... posterior thoraco-lumbar fusions. With one-level sales beginning in October of 2015, the company ...
(Date:4/28/2016)... ... 2016 , ... Next week on May 5 at 2:55 ... for tissue stem cell counting and expansion to gene-editing scientists and other attendees ... Genome Engineering in Burlington, Massachusetts. , The attention of most gene-editing scientists appears ...
Breaking Biology Technology: