Production of microbial lipid: Effects of growth rate and oxygen on lipid synthesis and fatty acid composition ofRhodotorula gracilis

1982 ◽  
Vol 24 (5) ◽  
pp. 1165-1172 ◽  
Author(s):  
S. Y. Choi ◽  
Dewey D. Y. Ryu ◽  
J. S. Rhee
Keyword(s):  
Growth Rate ◽  
Fatty Acid Composition ◽  
Fatty Acid ◽  
Acid Composition ◽  
Lipid Synthesis ◽  
Microbial Lipid

Effect of breed and diet on total lipid and selected shelf-life parameters in beef muscle

2003 ◽  
Vol 2003 ◽  
pp. 43-43 ◽  
Author(s):  
H.E. Warren ◽  
M. Enser ◽  
I. Richardson ◽  
J.D. Wood ◽  
N.D. Scollan
Keyword(s):  
Growth Rate ◽  
Body Composition ◽  
Fatty Acid Composition ◽  
Fatty Acid ◽  
Acid Composition ◽  
Composition Studies ◽  
Feed Composition ◽  
Tissue Fatty Acid Composition ◽  
Holstein Friesian ◽  
Beef Muscle

Some studies with beef cattle have shown that breed and diet affect tissue fatty acid composition and meat quality (Choi et al., 2000; Scollan et al., 2001). However, the effects of breed are often confounded with differences in growth rate and body composition. Diet also affects fatty acid composition, however, feed composition studies are often confounded by the use of mixed diets and few have compared all-forage with all-concentrate diets. This study, therefore, was designed to compare Aberdeen Angus and Holstein-Friesian breeds growing at similar rates and fed either all-forage or a high concentrate diet.

scholarly journals Population Dynamics, Fecundity and Fatty Acid Composition of Oithona nana (Cyclopoida, Copepoda), Fed on Different Diets

Animals ◽  
2021 ◽  
Vol 11 (5) ◽  
pp. 1188
Author(s):  
Fawzy I. Magouz ◽  
Mohamed A. Essa ◽  
Mustafa Matter ◽  
Abdallah Tageldein Mansour ◽  
Mohamed Alkafafy ◽  
...  
Keyword(s):  
Growth Rate ◽  
Fatty Acid Composition ◽  
Fatty Acid ◽  
Population Growth ◽  
Acid Composition ◽  
Rice Bran ◽  
Nutritional Value ◽  
Corn Starch ◽  
Copepod Species ◽  
Marine Copepod

The marine copepod species Oithona nana is considered as one of the most successfully mass cultured Cyclopoida species in marine hatcheries. This study investigated the effects of four feed diets (soybean, yeast, rice bran, and corn starch) on the population growth, growth rate, population composition, fecundity, and fatty acid composition of native isolated Cyclopoida copepod species O. nana. The experiment was continued for 15 days and the copepods were fed on one of the four diets with a concentration of 1 g 10−6 individual day−1. The results revealed that corn starch was found to be the most supportive diet for population growth and population growth rate. For nutritional value, copepods fed on rice bran were detected to have the highest content of MUFA, PUFA, and the lowest SFA and SFA/UFA ratio; more importantly, the rice bran diet was the only treatment that showed C20:5ω3. Moreover, copepods fed on rice bran showed the highest significant female fecundity, copepodite, and nauplii percent. Finally, the protocols described in the current study concluded that the dry feeds, especially corn starch, are very useful and applicable in hatcheries for maximizing the fecundity and density of Cyclopoida copepod species, O. nana.

scholarly journals Growth rate and fatty acid composition of orange mud crab instars, Scylla olivacea, reared at different temperatures

2020 ◽  
Vol 46 (1) ◽  
pp. 97-102
Author(s):  
Mohamad N. Azra ◽  
Camila Prestes Dos Santos Tavares ◽  
Ambok Bolong Abol-Munafi ◽  
Mhd Ikhwanuddin
Keyword(s):  
Growth Rate ◽  
Fatty Acid Composition ◽  
Fatty Acid ◽  
Acid Composition ◽  
Mud Crab ◽  
Different Temperatures

Temperature and nutrient availability control growth rate and fatty acid composition of facultatively psychrophilic Cobetia marina strain L-2

2004 ◽  
Vol 181 (5) ◽  
pp. 345-351 ◽  
Author(s):  
Isao Yumoto ◽  
Kikue Hirota ◽  
Hideaki Iwata ◽  
Masatoshi Akutsu ◽  
Keita Kusumoto ◽  
...  
Keyword(s):  
Growth Rate ◽  
Fatty Acid Composition ◽  
Fatty Acid ◽  
Acid Composition ◽  
Nutrient Availability ◽  
Cobetia Marina ◽  
Control Growth

Temperature-induced differences in growth rate and fatty acid composition in two strains of Escherichia coli 15T−

1978 ◽  
Vol 24 (10) ◽  
pp. 1277-1280
Author(s):  
John L. Crowe ◽  
James E. Urban
Keyword(s):  
Escherichia Coli ◽  
Growth Rate ◽  
Fatty Acid Composition ◽  
Fatty Acid ◽  
Acid Composition ◽  
Unsaturated Fatty Acid ◽  
Growth Temperature ◽  
Doubling Time ◽  
Fatty Acid Ratio ◽  
Acid Ratio

The saturated/unsaturated fatty acid ratio of Escherichia coli 15T− decreases almost threefold as growth temperature decreases from 43 to 27 °C, whereas the ratio of a fast-growing mutant derived from 15T− changes only half as much. Strain 15T− experiences a 2.4-fold change in doubling time across this temperature range, but doubling time in the mutant changes 3.3-fold.

Effect of carbon source on growth rate and phospholipid composition of Escherichia coli 15T− and an unsaturated fatty acid auxotroph

1981 ◽  
Vol 27 (12) ◽  
pp. 1283-1289 ◽  
Author(s):  
James E. Urban ◽  
W. E. Klopfenstein ◽  
K. Ahmad ◽  
J. D. Baines
Keyword(s):  
Escherichia Coli ◽  
Growth Rate ◽  
Fatty Acid Composition ◽  
Oleic Acid ◽  
Fatty Acid ◽  
Carbon Source ◽  
Acid Composition ◽  
Doubling Time ◽  
Phospholipid Composition ◽  
Acid Supplementation

Escherichia coli 15T− was grown with glucose, succinic acid, aspartic acid, oleic acid, and oleic plus aspartic acids as carbon sources, and a fatty acid auxotroph derived from 15T− was grown on oleic acid and oleic plus aspartic acids. The doubling time, phospholipid composition, phosphorus content, and the fatty acid composition of the phospholipids of cells in each of the media were determined. In all cases, phosphatidylethanolamine was the major phospholipid present; but with 15T− its concentration was inversely proportional to the doubling time in unsupplemented media. With the auxotroph the phosphatidylethanolamine concentration was essentially unchanged with growth. Total lipid phosphorus was inversely proportional to doubling time, an effect particularly evident with the auxotroph. Without oleic acid supplementation, the major effects of carbon source on fatty acid composition are decreases in the content of palmitoleic acid and increases in the content of cis-9,10-methylene hexadecanoic acid as growth rate decreases. Oleic acid supplementation elevated 18:1 fatty acid content in both 15T− and the auxotroph.

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