Effect of cell rupturing methods on the drying characteristics and lipid compositions of microalgae.
This paper investigated the effect of cell rupturing methods on the drying characteristics and the lipid compositions of a green algae consortium grown in an open raceway pond. The ruptured microalgae samples obtained from French press, autoclave and sonication methods were used for conducting thin layer drying experiment at four drying temperatures (30, 50, 70 and 90 °C). The rate of moisture removal at each drying condition was recorded until no change in moisture loss. A typical drying curve for a microalgae consortium indicated that the rate of drying was limited by diffusion. Among three drying models (Newton, Page and Henderson-Pabis) used to fit the drying data, Page model fitted well on the experimental drying data with a coefficient of determination (R(2)) of 0.99. Solvent extraction of French press ruptured cells produced the highest total lipid yield with no significant change in lipid compositions.
Biological and Agricultural Engineering Department, University of Georgia, Athens, GA 30602, United States.
T
T
Viswanathan
S
S
Mani
K C
KC
Das
S
S
Chinnasamy
A
A
Bhatnagar
R K
RK
Singh
M
M
Singh
D000704:Analysis of Variance; D003890:Desiccation / Q000379:methods*; D004058:Diffusion; D005227:Fatty Acids / Q000032:analysis; D008055:Lipids / Q000737:chemistry*; D058086:Microalgae / Q000737:chemistry* / Q000166:cytology*; D013696:Temperature
D005227:Fatty Acids; D008055:Lipids