RT Journal T1 OPTIMIZATION OF GROWTH CONDITIONS OF DIFFERENT ALGAL STRAINS AND DETERMINATION OF THEIR LIPID CONTENTS A1 N. Munir A1 A. Imtiaz A1 N. Sharif A1 S. Naz JF Journal of Animal and Plant Sciences JO JAPS SN 1018-7081 VO 25 IS 2 SP 546 OP 553 YR 2015 FD 2015/04/01 DO DOI NA AB

Aim of the present study was collection and identification of native algal species, optimization of their growth conditions and comparison of their oil content. From the collected 20 samples 3 different algal species were identified. The effect of growth media, temperature, pH level, light intensity and aeration on growth of Spirogyra sp. and Oedogonium sp. and Chlorella sp. was recorded. It was observed that both Oedogonium sp. and Chlorella sp. grow well in Blue green medium while Spirogyra sp. showed better growth in terms of fresh weight in Bold Basal medium.  Algal growth optimum temperature was between 24-28 oC. It was also observed that neither very low nor very high pH is suitable for algal growth and at pH 7.5 algae were able to grow at maximum with fresh weights of 4.89±0.091 g and 4.79±0.021 g for Spirogyra sp. and Oedogonium sp. respectively. Artificial fluorescent light resulted in an increased growth of algae as compared to sunlight or when algae placed near window and exposed to indirect sunlight. The oil content of the three algal species is in order Chlorella sp > Oedogonium sp. Spirogyra sp. Hence, Chlorella sp. was found to have the highest lipid content with 15.46±0.240% yield for lipid content.

K1 Algae; Biofuel; Chlorella.; Oedogonium.; Optimization; Spirogyra PB Pakistan Agricultural Scientists Forum LK https://thejaps.org.pk/AbstractView.aspx?mid=2015-JAPS-74