Research Article

Efficacy of EDTA and Phosphorous on Biomass Yield and Total Lipid Accumulation in Two Green Microalgae with Special Emphasis on Neutral Lipid Detection by Flow Cytometry

Table 1

FAME compositions (%) of Chlorella ellipsoidea and Chlorococcum infusionum under P and EDTA stress.

Fatty acidsFatty acid compositions (%)
Chlorella ellipsoideaChlorococcum infusionum
Control0.15 g/L P0.05 g/L
EDTA
Control0.00 g/L P0.08 g/L
EDTA

Lauric (12:0)1.93b  ±  0.060.46c  ±  0.042.68a  ±  0.260.40c  ±  0.08
Myristic (14:0)5.78b  ±  0.235.29b  ±  0.307.74a  ±  0.399.23ab  ±  0.328.63b  ±  0.401.97c  ±  0.30
Palmitic (16:0)8.92a  ±  0.444.26c  ±  0.314.86b  ±  0.278.63b  ±  0.3610.84a  ±  0.7210.59a  ±  0.36
Palmitoleic (16:1)10.12c  ±  0.1917.21a  ±  1.1316.24a  ±  0.7913.99c  ±  1.1921.49a  ±  1.0614.53c  ±  1.11
Stearic (18:0)2.17c  ±  0.219.26a  ±  0.782.12c  ±  0.223.87d  ±  0.2210.44c  ±  0.9917.98a  ±  0.98
Oleic (18:1)13.73d  ±  0.7721.62c  ±  0.9430.05b  ±  2.169.52c  ±  0.3130.32a  ±  2.6829.80a  ±  1.43
Linoleic (18:2)19.52a  ±  0.7414.12b  ±  0.8610.17c  ±  0.9922.92a  ±  1.1013.05c  ±  1.1915.02d  ±  0.75
α-Linoleic (18:3)10.84a  ±  0.7310.88a  ±  0.3611.08a  ±  0.1322.02a  ±  0.751.81d  ±  0.297.88c  ±  0.50
Arachidic (20:0)19.04a  ±  0.779.71c  ±  0.4911.38b  ±  1.130.60b  ±  0.131.23a  ±  0.11
Arachidonic (20:4)0.24c  ±  0.066.62a  ±  0.375.92b  ±  0.562.08a  ±  0.220.25b  ±  0.15
Eicosapentaenoic (20:5)7.71a  ±  0.141.19b  ±  0.381.61a  ±  0.07
Behenic (22:0)1.03a  ±  0.232.68a  ±  0.54
Lignoceric (24:0)0.60b  ±  0.061.41a  ±  0.110.74b  ±  0.11

SFA37.84 ± 1.7129.55 ± 2.1126.56 ± 2.0528.29 ± 1.8931.72 ± 2.1932.51 ± 1.86
MUFA23.85 ± 0.9638.83 ± 2.0746.29 ± 2.9523.51 ± 1.5051.81 ± 3.7444.33 ± 2.54
PUFA38.31 ± 1.6731.62 ± 1.5927.17 ± 1.6848.21 ± 2.4516.47 ± 1.5523.15 ± 1.40

Values are mean ± SD, . Values in each column superscripted by different alphabets (a–d) are 559 significantly different from each other (, DMRT).