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Biomass yield of Isochrysis galbana (Parke; clone T-ISO) and growth of Brachionus rotundiformis (Tschugunoff) using continuous cultivation method

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Date
2014
Author
de la Peña, Milagros R.
Page views
1,090
ASFA keyword
clones ASFA
growth rate ASFA
phytoplankton culture ASFA
algal culture ASFA
chlorophylls ASFA
laboratory culture ASFA
nitrates ASFA
cell culture ASFA
cultured organisms ASFA
biomass ASFA
batch culture ASFA
dilution ASFA
yields ASFA
continuous culture ASFA
AGROVOC keyword
Brachionus rotundiformis AGROVOC
Philippines AGROVOC
Taxonomic term
Isochrysis galbana GBIF
Metadata
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Abstract
Batch culture of Isochrysis galbana clone T-ISO is difficult due to its unstable biomass production; hence, the effect of continuous cultivation at different dilution rates was investigated to compare its productivity with that of batch culture. Significantly higher total algal cell yield was attained in continuous cultures (1.70 × 108 and 1.03 × 108 cells L-1 at 0.60 d-1 and 0.30 d-1 dilution rates, respectively) compared with batch culture (0.16 × 108 cells L-1); the batch culture did not receive any inflow of nutrients. The amount of protein per cell was similar in both batch and continuous cultures at 0.60 d-1 dilution rate after 24 h and 5 d in both culture systems. Chlorophyll a yield was not affected by dilution rate but decreased as the culture aged. The dry weight yield was also similar in both batch and continuous cultures. The higher nitrate concentration supplemented in the batch culture resulted in higher cell density and elevated protein content of the alga. Rotifer (Brahionus rotundiformis) cultures that received inflow of nutrients from the algal tanks had significantly higher (P<0.05) peak population count (28 and 33 individuals mL-1 at 0.30 and 0.60 d-1 dilution rates, respectively) compared with rotifer cultures that did not receive an inflow of food (18.22 individuals mL-1). The higher biomass yield of T-ISO using continuous cultivation method can increase the population growth of rotifer under tropical conditions.
URI
http://hdl.handle.net/10862/2243
Suggested Citation
de la Peña, M. R. (2014). Biomass yield of Isochrysis galbana (Parke; clone T-ISO) and growth of Brachionus rotundiformis (Tschugunoff) using continuous cultivation method. Philippine Agricultural Scientist, 97(2), 161-170. http://hdl.handle.net/10862/2243
Type
Article
ISSN
0031-7454
Koleksi
  • Journal Articles [1196]

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