BIOLOGICAL PROPERTIES AND BIOMASS CULTURE OF THE MICROALGAE Chaetoceros muelleri FROM GIAO THUY MANGROVE FOR USE IN AQUACULTURE
A Chaetoceros strain was successfully isolated to a unialgal state from Giao Thuy mangrove and identified to be of Chaetoceros muelleri species based on morphological properties and 18S rDNA sequence analysis. ASW medium together with 25‰ of salinity was found to be best suitable for the growth of t...
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| Main Authors: | , , , |
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| 格式: | Article |
| 語言: | English |
| 出版: |
Journal of Science of HNUE
2016
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| 主題: | |
| 在線閱讀: | http://repository.vnu.edu.vn/handle/VNU_123/10610 |
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| 總結: | A Chaetoceros strain was successfully isolated to a unialgal state from Giao Thuy mangrove and identified to be of Chaetoceros muelleri species based on morphological properties and 18S rDNA sequence analysis. ASW medium together with 25‰ of salinity was found to be best suitable for the growth of this strain and was applied to its biomass production. The fatty acid profile of C. muelleri strain was typical of most diatoms with the exception of low level of 16:0 and 14:0 acids. This strain possessed high concentration of polyunsaturated fatty acids (PUFAs), 36.64% total fatty acids, which is much higher than that of C. calcitrans, C. gracilis and C. muelleri in previous reports. Among these acids, eicosapentaenoic acid (EPA) and arachidonic acid (AA) had significant proportion (24.76% and 7.84%, respectively), which are also higher than the above strains. The isolated C. muelleri strain represents a high-quality food resource and has a high potential for use in aquaculture. |
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