Isolation and Nile Red screening of indigenous microalgae species from Pahang lakes as potential lipid source in aquaculture feed
The high nutritional composition of microalgae that includes lipids is considered as one of the promising alternative lipid sources for animal feeds enrichment. Since microalgae have higher photosynthetic efficiencies than terrestrial plants, highly adaptable to environmental changes, and do not c...
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| Main Authors: | , , , , |
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| Format: | Article |
| Language: | English |
| Published: |
Penerbit Universiti Kebangsaan Malaysia
2020
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| Online Access: | http://journalarticle.ukm.my/17235/1/49_04_20.pdf http://journalarticle.ukm.my/17235/ http://www.mabjournal.com/index.php?option=com_content&view=article&id=1070&catid=59:current-view&Itemid=56 |
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| Summary: | The high nutritional composition of microalgae that includes lipids is considered as one of the promising alternative lipid
sources for animal feeds enrichment. Since microalgae have higher photosynthetic efficiencies than terrestrial plants, highly
adaptable to environmental changes, and do not compete with conventional agriculture for resources, the inclusion of lipid
sources from microalgae in feed could help the sustainability of livestock production systems. This study has reported the
indigenous microalgae strains from Pahang lakes and determined lipid-rich strains that have the potential for alternative lipid
sources. Pure isolated strains were identified using an 18S rDNA marker. The microalgae strain biomass was determined for
15 days. Meanwhile, the screening for high-rich lipid contents in microalgae strains was carried out using Nile Red fluorescent
dye. A total of 11 strains were successfully isolated that consist of 8 different species (Carteria radiosa, Spongiosaccinopsis
terrestris, Desmodesmus sp., Desmodesmus abundans, Dendodesmus brasiliensis, Chlamydomonas reinhardtii, Mychonastes
timauensis, and Mychonastes ovahimbae). Results showed that PHG C01, PHG C02, and PHG F03 have the highest biomass
production among all strains. Meanwhile, for lipid production, PHG B01 and PHG F03 showed the highest results. Thus,
PHG B01 and PHG F03 strains were chosen as potential candidates to be used as an alternative lipid source in animal feed
feedstock. |
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