National Academy of Agricultural Sciences (NAAS)
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PRINT ISSN : 2319-7692
Online ISSN : 2319-7706 Issues : 12 per year Publisher : Excellent Publishers Email : editorijcmas@gmail.com / submit@ijcmas.com Editor-in-chief: Dr.M.Prakash Index Copernicus ICV 2018: 95.39 NAAS RATING 2020: 5.38 |
The fresh water microalgae Microcystis aeruginosa has been examined for its chlorophyll-a and antioxidant enzymatic activities in different nitrate and phosphate concentrations. In the experiment, M. aeruginosa were cultured 28 days at 18°C, 25°C and 30°C in various light intensity. The maximum chlorophyll-a content was 33.79 (mg/L) in phosphate (460 µM) at 30℃. Superoxide dismutase (SOD) was significantly higher of 66.53% in phosphate (980 µM) at 30℃. DPPH radical scavenging activity of 78.16 % in the nitrate (329.5µM) at 18℃. The results showed that the maximum chlorophyll-a recorded at 30℃ from N:P, P and N respectively. DPPH increased with nitrate concentration during the lower temperature and the SOD increased with phosphate in highest temperature. Chlorophyll- a content significantly compared with 18℃ and 30℃ (P < 0.05).
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