Single Cell Protein Production From Beet Pulp By Mixed Culture

Abstract

A mixed culture of Trichoderma reeseiand Kluyveromyces marxianuswas found to be more efficient for single cell protein (SCP) production (51%) from beet pulp (BP) than the other tested mixed cultures containing T. reeseior a monoculture of T. reesei (49%). The extent of SCP production by the T. reesei - K. marxianus co-culture varied in response to different levels of both yeast extract and BP in the basal medium. Under optimum conditions the protein yield reached to a maximum value (54%) and the corresponding efficiency of BP conversion into proteins was 42%. The protein obtained contained all essential amino acids and compared favourably with the profiles of both the FAO guideline and of soy bean oil meal.