Effect of nitrogen sources on biomass, lipid and docosahexanoic acid production by Aurantiochytrium sp. SW1

A local isolate, Aurantiochytrium sp. SW1 has been verified to have high content of docosahexanoic acid (DHA). However, the effect of different nitrogen sources on biomass, lipid concentration and DHA content in Aurantiochytrium sp. SW1 is still unknown. Hence, this study is focused in using six dif...

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Hauptverfasser:	Auma, Khairunnisa, Hamid, Aidil Abdul, Yusoff, Wan Mohtar Wan
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creator	Auma, Khairunnisa Hamid, Aidil Abdul Yusoff, Wan Mohtar Wan
description	A local isolate, Aurantiochytrium sp. SW1 has been verified to have high content of docosahexanoic acid (DHA). However, the effect of different nitrogen sources on biomass, lipid concentration and DHA content in Aurantiochytrium sp. SW1 is still unknown. Hence, this study is focused in using six different organic and inorganic nitrogen sources to grow Aurantiochytrium sp. SW1 in optimized Burja medium. Monosodium glutamate (MSG) gave the highest biomass concentration of 15.97 g/L followed by ammonium nitrate (NH4NO3) with 13.37 g/L at 96 hr. These two nitrogen sources had significant effect on the biomass concentration (p
doi_str_mv	10.1063/1.5027980
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SW1</title><source>AIP Journals Complete</source><creator>Auma, Khairunnisa ; Hamid, Aidil Abdul ; Yusoff, Wan Mohtar Wan</creator><contributor>Jumali, Mohammad Hafizuddin Hj ; Ibrahim, Kamarulzaman ; Noorani, Mohd Salmi Md ; Hanafiah, Marlia Mohd ; Ibrahim, Nazlina ; Hasbullah, Siti Aishah</contributor><creatorcontrib>Auma, Khairunnisa ; Hamid, Aidil Abdul ; Yusoff, Wan Mohtar Wan ; Jumali, Mohammad Hafizuddin Hj ; Ibrahim, Kamarulzaman ; Noorani, Mohd Salmi Md ; Hanafiah, Marlia Mohd ; Ibrahim, Nazlina ; Hasbullah, Siti Aishah</creatorcontrib><description>A local isolate, Aurantiochytrium sp. SW1 has been verified to have high content of docosahexanoic acid (DHA). However, the effect of different nitrogen sources on biomass, lipid concentration and DHA content in Aurantiochytrium sp. SW1 is still unknown. Hence, this study is focused in using six different organic and inorganic nitrogen sources to grow Aurantiochytrium sp. SW1 in optimized Burja medium. Monosodium glutamate (MSG) gave the highest biomass concentration of 15.97 g/L followed by ammonium nitrate (NH4NO3) with 13.37 g/L at 96 hr. These two nitrogen sources had significant effect on the biomass concentration (p<0.05). The highest lipid accumulated was obtained using MSG that reached 79.6% in biomass concentration. DHA content in lipid showed cultivation using MSG reached 47.9% (4.95 g/L). Statistical analysis using least significant difference (LSD) showed significant lipid production (p<0.05) when cultivated in MSG compared to other five nitrogen sources. The highest DHA productivity (0.052 g/L hr−1) was obtained in medium containing MSG. 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Statistical analysis using least significant difference (LSD) showed significant lipid production (p<0.05) when cultivated in MSG compared to other five nitrogen sources. The highest DHA productivity (0.052 g/L hr−1) was obtained in medium containing MSG. 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SW1</atitle><btitle>AIP conference proceedings</btitle><date>2018-04-04</date><risdate>2018</risdate><volume>1940</volume><issue>1</issue><issn>0094-243X</issn><eissn>1551-7616</eissn><coden>APCPCS</coden><abstract>A local isolate, Aurantiochytrium sp. SW1 has been verified to have high content of docosahexanoic acid (DHA). However, the effect of different nitrogen sources on biomass, lipid concentration and DHA content in Aurantiochytrium sp. SW1 is still unknown. Hence, this study is focused in using six different organic and inorganic nitrogen sources to grow Aurantiochytrium sp. SW1 in optimized Burja medium. Monosodium glutamate (MSG) gave the highest biomass concentration of 15.97 g/L followed by ammonium nitrate (NH4NO3) with 13.37 g/L at 96 hr. These two nitrogen sources had significant effect on the biomass concentration (p<0.05). The highest lipid accumulated was obtained using MSG that reached 79.6% in biomass concentration. DHA content in lipid showed cultivation using MSG reached 47.9% (4.95 g/L). Statistical analysis using least significant difference (LSD) showed significant lipid production (p<0.05) when cultivated in MSG compared to other five nitrogen sources. The highest DHA productivity (0.052 g/L hr−1) was obtained in medium containing MSG. This study proves that nitrogen component in the medium significantly affects the biomass concentration, lipid and DHA content.</abstract><doi>10.1063/1.5027980</doi><tpages>5</tpages></addata></record>
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title	Effect of nitrogen sources on biomass, lipid and docosahexanoic acid production by Aurantiochytrium sp. SW1
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