Influence Of Culture Condition And pH On Growth And Production Of Brown Pigment from Alternaria alternata

Sagarika Devi; Perumal Karuppan

Volume : III, Issue : X, October - 2014

Influence Of Culture Condition And pH On Growth And Production Of Brown Pigment from Alternaria alternata

Sagarika Devi, Perumal Karuppan

Abstract :

Alternaria spp. grows over a wide range of pH, temperature and simple sugars. However, limited reports are available on the combined influence of pH, temperature and simple sugars on mycelial growth and pigment production. In the present investigation, the influence of culture condition and pH was investigated on mycelial growth and production of own pigment from Alternaria alternata in 6 media at pH 4–9. Among 3 natural and 3 synthetic media investigated for mycelial growth and production of own pigment from A. alternata, natural medium Sorghum Extract maintained at 28oC � 2oC under stationary condition favoured maximum mycelial growth and own production of pigment. Among all pH studied, pH 6 on day 9 supported maximum mycelial growth (12.92 � 0.03 g L–1) in Sorghum Extract medium and maximum own pigment (14.3 � 0.86 mg g–1) in Maize Grain Extract.