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Author Pahl, Stephen L. ♦ Lewis, David M. ♦ Chen, Feng ♦ King, Keith D.
Source World Health Organization (WHO)-Global Index Medicus
Content type Text
Publisher Elsevier
File Format HTM / HTML
Language English
Difficulty Level Medium
Subject Domain (in DDC) Natural sciences & mathematics ♦ Chemistry & allied sciences ♦ Life sciences; biology ♦ Physiology & related subjects ♦ Biochemistry ♦ Natural history of organisms ♦ Technology ♦ Medicine & health ♦ Human physiology ♦ Pharmacology and therapeutics ♦ Diseases ♦ Chemical engineering ♦ Manufacture for specific uses ♦ Precision instruments & other devices
Subject Domain (in MeSH) Eukaryota ♦ Organisms ♦ Lipids ♦ Chemicals and Drugs ♦ Diagnosis ♦ Investigative Techniques ♦ Analytical, Diagnostic and Therapeutic Techniques and Equipment ♦ Physiological Phenomena ♦ Biological Phenomena ♦ Biological Sciences
Subject Keyword Discipline Biomedical Engineering ♦ Discipline Microbiology ♦ Cell Culture Techniques ♦ Methods ♦ Diatoms ♦ Chemistry ♦ Growth & Development ♦ Environment ♦ Food Analysis ♦ Lipids ♦ Analysis ♦ Nutritive Value ♦ Journal Article
Abstract To investigate the nutritional value of the diatom Cyclotella cryptica (Reimann, Lewin, and Guillard) as an alternative feed for use in the aquaculture industry, the heterotrophic growth characteristics and resultant fatty acid profile of the microalga were studied when cultivated under a variety of controlled salinity and temperature conditions. In addition, the effects of pH on the growth characteristics were also studied. The maximum specific growth rate was affected by initial pH and cultivation temperature, but not by salinity. The optimal pH and temperature ranges for growth were 7.2 to 8.1 and 22.5 to 25.0 degrees C, respectively. Lipid accumulation and the fatty acid composition were also affected by cultivation temperature and salinity. The optimal temperature range and salinity level for lipid accumulation were 18.0 to 25.0 degrees C and 11.2 psu, respectively. In all cases the fatty acid distribution was similar, with the most abundant fatty acids being palmitic acid (16:0), palmitoleic acid (16:1 n-7), stearidonic acid (18:4 n-3, SDA), eicosapentaenoic acid (20:5 n-3, EPA), and decosahexaenoic acid (22:6 n-3, DHA).
Description Country affiliation: Australia
Author Affiliation: Pahl SL ( School of Chemical Engineering, The University of Adelaide, Adelaide, South Australia 5005, Australia.)
ISSN 13891723
Educational Role Student ♦ Teacher
Age Range above 22 year
Educational Use Reading ♦ Research ♦ Self Learning
Interactivity Type Expositive
Education Level UG and PG
Learning Resource Type Article
Publisher Date 2010-03-01
Publisher Place Japan
e-ISSN 13474421
Journal Journal of Bioscience and Bioengineering
Volume Number 109
Issue Number 3

Source: WHO-Global Index Medicus