Effect of nitrogen on fatty acids composition of Nostoc commune

doi:10.13386/j.issn1002-0306.2013.05.050

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Science and Technology of Food Industry > 2013 > (05): 89-92. > DOI: 10.13386/j.issn1002-0306.2013.05.050

Effect of nitrogen on fatty acids composition of Nostoc commune[J]. Science and Technology of Food Industry, 2013, (05): 89-92. DOI: 10.13386/j.issn1002-0306.2013.05.050

Citation:

Effect of nitrogen on fatty acids composition of Nostoc commune[J]. Science and Technology of Food Industry, 2013, (05): 89-92. DOI: 10.13386/j.issn1002-0306.2013.05.050

Citation:

Effect of nitrogen on fatty acids composition of Nostoc commune[J]. Science and Technology of Food Industry, 2013, (05): 89-92. DOI: 10.13386/j.issn1002-0306.2013.05.050

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Effect of nitrogen on fatty acids composition of Nostoc commune

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Received Date: September 02, 2012

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Abstract

Abstract

Nostoc commune cultivated in two different conditions (with or without nitrogen in medium) were analyzed for their fatty acids composition using a modified Bligh-Dyer method and GC-MS. The results indicated that C16 and C18 were dominant compositions of total fatty acids (TFAs) , among which the contents of unsaturated fatty acids (UFAs) were all above 50% in all tested samples. TFAs concentration of N. commune cultivated in medium without nitrogen (BG110) was 13.29mg/g, while that of saturated fatty acids (SFAs) and UFAs were present at 36.91%, 63.09% respectively. C18：1 was present at 15.99% in particular;TFAs concentration of N. commune cultivated in medium with nitrogen (BG11) was 7.72mg/g, while concentrations of SFAs and UFAs were present at 47.91%, 52.09% respectively. C18∶1 was 1.74%. The present study showed that the contents of TFAs especially UFAs was significantly (p<0.05) higher in BG110 group than in BG11 group. This demonstrated that the absence of nitrogen was propitious to the accumulation of fatty acids especially UFAs.
- Nostoc commune;nitrogen;fatty acids;Gas chromatography-Mass spectrometry (GC-MS) ;

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