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Lactobacillus plantarum phytase activity is due to non‐specific acid phosphatase
Author(s) -
Zamudio M.,
González A.,
Medina J.A.
Publication year - 2001
Publication title -
letters in applied microbiology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.698
H-Index - 110
eISSN - 1472-765X
pISSN - 0266-8254
DOI - 10.1046/j.1472-765x.2001.00890.x
Subject(s) - maya , library science , humanities , art , philosophy , computer science , theology
M. ZAMUDIO, A. GONZÁLEZ AND J.A. MEDINA. 2001. Microbial phytases suitable for food fermentations could be obtained from lactic acid bacteria isolated from natural vegetable fermentations. Phytase activity was evaluated for six lactic acid bacteria cultures. Although the highest activity was found for Lactobacillus plantarum , the phytase activity was very low. Further characterization of the enzyme with phytate‐degrading activity showed a molecular weight of 52 kDa and an optimum activity at pH 5·5 and 65°C. Enzyme activity was due to a non‐specific acid phosphatase which had a higher hydrolysis rate with monophosphorylated compounds such as acetyl phosphate that could explain the low phytase activity.