Mycobiology  2009;37(2):89-93

Optimal Culture Conditions for Mycelial Growth and Exo-polymer Production of Ganoderma applanatum.

Yong Tae JEONG 1 ; Sang Chul JEONG ; Byung Keun YANG ; Rezuanul ISLAM ; Chi Hyun SONG

Affiliations

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Keywords

Exo-polymer; Ganoderma applanatum; Mycelia; Submerged culture

Country

Republic of Korea

Language

English

Abstract

The effect of fermentation parameters and medium composition on the simultaneous mycelial growth and exo-polymer production from submerged cultures of Ganoderma applanatum was investigated in shake-flask cultures. The optimum initial pH for mycelial growth and exo-polymer production was 5.0 and 6.0, respectively. The optimum temperature was 25degrees C and the optimum inoculum content was 3.0% (v/v). The optimal carbon and nitrogen sources were glucose and corn steep powder, respectively. After 12 days fermentation under these conditions, the highest mycelial growth was 18.0 g/l and the highest exo-polymer production was 3.9 g/l.