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Phytate dephosphorylation by Lactobacillus pentosus CFR3.
- Source :
-
International Journal of Food Science & Technology . Jul2017, Vol. 52 Issue 7, p1552-1558. 7p. - Publication Year :
- 2017
-
Abstract
- Studies on phytate-degrading enzymes from lactobacilli are scarce, despite its potential in improving the nutritional quality of plant-based foods. Therefore, the current investigation deals with the phytate-degrading enzyme produced by a native Lactobacillus pentosus strain. Phytase activity was highest towards the end of the exponential phase. Activity increased in the presence of maltose (381.1%) compared with glucose. The presence of phytate in the media stimulated the enzyme production. The enzyme of interest was a 70 kDa protein with a pH and temperature optima of 5.0 and 55-60 °C, respectively. It retained 46% of activity after exposure to 70 °C for 20 min and also showed broad substrate specificity. It was completely inhibited by Hg2+, Fe2+ and PMSF while being activated by Co2+. This report is the first to show dephytinisation of autoclaved finger millet flour either by fermentation with L. pentosus or by treatment with the corresponding cell-free extract. [ABSTRACT FROM AUTHOR]
- Subjects :
- *PHYTIC acid
*LACTOBACILLUS
*PHYTASES
*MALTOSE
*ENZYMES
Subjects
Details
- Language :
- English
- ISSN :
- 09505423
- Volume :
- 52
- Issue :
- 7
- Database :
- Academic Search Index
- Journal :
- International Journal of Food Science & Technology
- Publication Type :
- Academic Journal
- Accession number :
- 123609502
- Full Text :
- https://doi.org/10.1111/ijfs.13407