Welcome to FIS   Sponsored By
Subscribe to FIS | Register with FIS | Advertise with FIS | Newsletter | About FIS | Contact us
   


The team of scientists of University of Almeria. (Photo: Universidad de Almería)

Marine microalgae biomass production boosted for aquaculture feed

Click on the flag for more information about Spain SPAIN
Tuesday, July 16, 2013, 04:20 (GMT + 9)

A team of scientists from the Group of Marine Microalgae Biotechnology of the University of Almería (UA) developed a process to obtain microalgae that increased biomass production that is rich in polyunsaturated fat for aquaculture species.

According to the researchers involved in the study, published in the journal Bioresource Technology and entitled Medium recycling for Nannochloropsis gaditana cultures for aquaculture, the process is cheaper and environmentally friendly.

The scientists selected the alga Nannochloropsis gaditana because it is a good producer of valuable fatty acids and proteins for aquaculture

According to Maria del Carmen Ceron, responsible for the research, this alga contains "omega 3 and omega 6 acids, EPA and DHA, two beneficial fatty acids that are incorporated to the fish fat and, in turn, become part of the human diet."

As part of this initiative bioreactors incorporating improvements to optimize the biomass production process were developed by incorporating fertilizers and the reuse of the farming medium, stated the expert to Fundación Descubre.

After the addition of fertilizers, the scientists incorporated essential nutrients -- nitrogen and phosphorus -- and micro-nutrients to the water where the microalgae need them to grow.

This formula lowers the cost and keeps the same composition of nutrients needed by the microorganisms.

Furthermore, in order to reduce costs and avoid contamination, UA researchers reuse this water by previously sterilizing it in order to avoid the accumulation of unwanted microorganisms.

The expert panel found that the most effective technique is the ozonation, that is to say, the addition of ozone.

"This method reduces the bacterial load to values that are 1,000 times smaller than they are with other techniques such as initial filtering, chlorination, the addition of hydrogen peroxide or heating," explained Cerón.

"Our technologies favour the production of microorganisms so that all cells of microalgae grow in the most effective way and the quality of the biomass that is intended to aquaculture is boosted," the scientist added.

Finally, UA researchers also participated in the study Process for the biodiesel production involving the Chlorella protothecoides heterotrophic fermentation with glycerol as carbon source, in order to obtain biodiesel.

The novelty of this research is the use of glycerol as an organic substrate.

Ceron stressed that "there has been very high biomass yields and biodiesel productivities equivalent to those reported for the same species but using glucose as carbon source."
 

By Analia Murias
[email protected]
www.fis.com


 Print


Click to know how to advertise in FIS
MORE NEWS
Russian Federation
Apr 21, 02:50 (GMT + 9):
Russian Fishery to set up pollock processing plant in the Russian Far East
Australia
Apr 21, 02:30 (GMT + 9):
South Australian sardine fishery to enter MSC assessment process
Worldwide
Apr 21, 02:00 (GMT + 9):
IN BRIEF - Small changes in rainforests cause big damage to fish ecosystems
Australia
Apr 21, 02:00 (GMT + 9):
Salmon cannery hopes to attract Australian consumers’ interest
Portugal
Apr 21, 01:50 (GMT + 9):
New tuna factory to start operations in Vila Nova de Cerveira
United Kingdom
Apr 21, 01:30 (GMT + 9):
The British encouraged to consume jellyfish
Canada
Apr 21, 01:00 (GMT + 9):
IN BRIEF - BC oyster farmers taking big hit as three farms still closed due to contamination
United Kingdom
Apr 21, 01:00 (GMT + 9):
IN BRIEF - Salmon packs recalled over health concern
Senegal
Apr 21, 01:00 (GMT + 9):
IN BRIEF - A rise in foreign industrial trawlers off the coast of Senegal is causing local fishermen to lose their livelihoods
United States
Apr 21, 01:00 (GMT + 9):
IN BRIEF - Local Shellfish Beds Restricted Due To Pollution
Worldwide
Apr 21, 01:00 (GMT + 9):
IN BRIEF - Annual 5.0% Growth expected for Global Aquaculture Market by 2021
Peru
Apr 21, 00:00 (GMT + 9):
Virtual platform to favour data sharing on fight against IUU fishing
United States
Apr 20, 23:20 (GMT + 9):
Five Alaska seafood businesses to participate in trade mission to China
European Union
Apr 20, 22:50 (GMT + 9):
International high-tech system project could revolutionise fishing industry
Spain
Apr 20, 22:30 (GMT + 9):
Alantra fund acquires Canarian fish producer and distributor



Lenguaje
FEATURED EVENTS
  
TOP STORIES
Foundation to award USD 950,000 for fisheries innovation projects
United States The National Fish and Wildlife Foundation has made a request for proposals focusing on innovation and supporting effective participation of fishermen and fishing communities in the implementation of sustainable fisheries in the United States.
Russian Fishery to set up pollock processing plant in the Russian Far East
Russia Fed. The Russian Fishery Company has announced plans to start setting up a fish processing factory at Nadezhdinskaya Priority Development Territory, close to Vladivostok, in the Russian Far East.
EC intends to speed trade deal settlements with with Japan and Singapore
European Union The EC proposes to speed the settlement of the Economic Partnership Agreement with Japan and the trade and investment agreements with Singapore.
European Parliament approves EU-Mauritius fisheries agreement
European Union The plenary session of the European Parliament approved the fisheries agreement between the European Union and Mauritius, which will be valid for four years and benefits 85 EU vessels.
 
Maruha Nichiro Corporation
Nichirei Corporation -Headquarter-
Pesquera El Golfo S.A.
Ventisqueros - Productos del Mar Ventisqueros S.A
Wärtsilä Corporation -Wartsila Group Headquarter-
ITOCHU Corporation -Headquarter-
BAADER - Nordischer Maschinenbau Rud. Baader GmbH+Co.KG (Head Office)
Inmarsat plc - Global Headquarters
Marks & Spencer
Tesco PLC (Supermarket) - Headquarters
Sea Harvest Corporation (PTY) Ltd.
I&J - Irvin & Johnson Holding Company (Pty) Ltd.
Blue Continent Products (Pty) Ltd - (Oceana Group Limited)
Pesquera San Jose S.A.
Nutreco N.V. - Head Office
CNFC China National Fisheries Corporation - Group Headquarters
W. van der Zwan & Zn. B.V.
SMMI - Sunderland Marine Mutual Insurance Co., Ltd. - Headquarters
Icicle Seafoods Inc. -Headquarter-
Starkist Seafood Co. - Headquearters
Trident Seafoods Corp.
American Seafoods Group LLC - Head Office
Marel - Group Headquarters
SalMar ASA - Group Headquarters
Sajo Industries Co., Ltd
Hansung Enterprise Co.,Ltd.
BIM - Irish Sea Fisheries Board (An Bord Iascaigh Mhara)
CEFAS - Centre for Environment, Fisheries & Aquaculture Science
COPEINCA ASA - Corporacion Pesquera Inca S.A.C.
Chun Cheng Fishery Enterprise Pte Ltd.
VASEP - Vietnam Association of Seafood Exporters & Producers
Gomes da Costa
Furuno Electric Co., Ltd. (Headquarters)
NISSUI - Nippon Suisan Kaisha, Ltd. - Group Headquarters
FAO -Food and Agriculture Organization- Fisheries and Aquaculture Department (Headquarter)
Hagoromo Foods Co., Ltd.
Koden Electronics Co., Ltd. (Headquarters)
A.P. Møller - Maersk A/S - Headquarters
BVQI - Bureau Veritas Quality International (Head Office)
UPS - United Parcel Service, Inc. - Headquarters
Hamburg Süd Group - (Headquearters)
Armadora Pereira S.A. - Group Headquarters
NOAA - National Oceanic and Atmospheric Administration (Headquarters)
Omega Protein Corporation -Headquarter-
Marona S.A.
Marine Harvest ASA - Headquarters
Marubeni Europe Plc -UK-
Findus Ltd
Icom Inc. (Headquarter)
WWF Centroamerica
Oceana Group Limited
The David and Lucile Packard Foundation
Ajinomoto Co., Inc. - Headquarters
Friosur S.A. - Headquarters
Cargill, Incorporated - Global Headquarters
Benihana Inc.
Leardini Pescados Ltda
Mitsubishi Corporation Marine Products Depts. D.Team
CJ Corporation  - Group Headquarters
Greenpeace International - The Netherlands | Headquarters
David Suzuki Foundation
Fisheries and Oceans Canada -Communications Branch-
Mitsui & Co.,Ltd - Headquarters
NOREBO Group (former Ocean Trawlers Group)
Natori Co., Ltd.
Carrefour Supermarket - Headquarters
FedEx Corporation -Headquarter-
AKBM - Aker BioMarine ASA
Seafood Choices Alliance -Headquarter-
Austevoll Seafood ASA
Walmart / Wal-Mart Stores, Inc. (Supermarket) -Headquarter-
New Japan Radio Co.Ltd (JRC) -Head Office-
Gulfstream JSC
INVE Group - Head Office
Marine Stewardship Council - MSC Worldwide Headquarters
Royal Dutch Shell plc (Headquarter)
Genki Sushi Co.,Ltd -Headquarter-
Iceland Pelagic ehf
AXA Assistance Argentina S.A.
Caterpillar Inc. - Headquarters
Tiger Brands Limited
Morpol ASA - Group Headquarters
SeaChoice
National Geographic Society
AmazonFresh, LLC - AmazonFresh

Copyright 1995 - 2018 Fish Info & Services Co.Ltd| All Rights Reserved.   DISCLAIMER