Production of Lactic Acid By Rhizopus Oryzae From Low Cost Medium

Abstract

Rhizopus oryzae (strain-80) was used for production of lactic acid from various medium in surface fermentation . carbon source in the basic medium was wholly or partially subsitituted by date syrub which prepared from Zahdi date as acarbon source in basic medium. Aratio of 5:5 date syrub : glucose gave63,3gmlliter lactic acid and appeared to be economically valuable for commercial production for lactic acid . Additional increase in lactic acid production to90,4 gm l liter was achieved by substitution of distilled water with whey in the medium, According to the above results it can be concluded that. The low modified medium consist of date syrub : glucose , 5:5 + 2R medium + 50% diluted whey.