Abstract
Nineteen strains of lactic acid producing bacteria of the genera Lactobacillus and Streptococcus collected from different culture collections were screened for the production of extracellular phytase. A number of them exhibited the enzyme activity in the fermentation medium but Lactobacillus amylovorus B4552 produced the maximum amounts of phytase ranging from 125 to 146 units ml-1 extracellularly under the submerged cultivation conditions. The optimum glucose and inorganic phosphate levels for highest phytase production were found to be 1% and 24% mg, respectively. Lactobacillus amylovorus has potential in improving nutritional qualities of cereal and pulse-based food fermentations.
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