KANDUNGAN PIGMEN ASTAXANTHIN DARI MIKROALGA Botryococcus braunnii PADA BERBAGAI PENAMBAHAN NITROGEN DAN PHOSPHOR

Abstract

Abstract- Botryococcus braunii is a microalgae that produce astaxanthin . The content of astaxanthin in microalgae cells is influenced by environmental factors and nutrition . One source of nutrients that can influence the content of astaxanthin is nitrogen and phosphorus . Nitrate as nitrogen source used in this study is potassium nitrate at a concentration of 0.5 g / L ; 1 g / L ; 1.5 g / L ; 2 g / L and phosphate as a phosphorus source used is potassium dihydrogen phosphate at a concentration of 0.010 g / L ; 0.035 g / L ; 0.070 g / L ; 0.105 g / L. Qualitative and quantitative analysis of the astaxanthin dilakuakan with UV- VIS spectrophotometric method and using the ANOVA statistical test . The results showed that the maximum content of astaxanthin was obtained on the medium with the addition of potassium nitrate with a concentration of 1.5 g / l is equal to 1441.875 ppm and with the addition of potassium dihydrogen phosphate at a concentration of 0.035 g / L 1331.583 ppm .

Keywords : nitrogen, phospos, Botryococcus braunii , astaxanthin