Extracellular phytase activites of lactic acid bacteria in sourdough mix prepared from traditionally produced boza as starter culture
Abstract
Fermentation using Lactic Acid Bacteria (LAB) and LAB species can exhibit extracellular activities such as decreasing of antinutritional factors, in particular phytic acid (PA) or phytate. The objective of this study was to assess extracellular phytase activities of LAB in sourdough mix prepared from traditionally produced boza as starter culture. To do this, thirthy-five boza samples were collected from Central Anatolia, Marmara and Eastern Anatolia regions in Turkey to be used as starter culture for preparing sourdough mix. In each mixture, LAB strains and phytase (+) ones were screened by culture-based examination, characterized by VITEK® MS, and extracellular phytase activity of each LAB strain was determined by spectrophotometry. Overall, 29 presumptive strains of LAB were isolated. Of them, 21 were found to be phytase (+). The average extracellular phytase activity was 656.8 ±188.1 U//mL, and a Pediococcus pentosaceus EK1 isolate showed the highest activity as 1285.5 U/mL. In conclusion, the traditionally produced bozas have been found as potential starter culture reservoirs for sourdough fermentation with significantly higher extracellular phytase activities, thus challenging opportunitites to lower antinutritional factors, in particular phytic acid (PA) or phytate in the foods for the consumers.
Keywords
References
- Anastasio, M., Pepe, O., Cirillo, T., Palomba, S., Blaiotta, G., Villani, F. (2010). Selection and use of phytate-degrading LAB to improve cereal-based products by mineral solubilization during dough fermentation. Journal of Food Science, 75, M28-35. https://doi.org/10.1111/j.1750-3841.2009.01402.x
- Bae, H. D., Yanke, L. J., Cheng, K. J., Selinger, L. B. (1999). A novel staining method for detecting phytase activity. Journal of Microbiological Methods, 39(1), 17-22. https://doi.org/10.1016/S0167-7012(99)00096-2
- Borcaklı, M., Öztürk, T., Yeşilada, E. (2018). Cereal source and microbial consortia of the starter culture influence the chemical composition and physicochemical characteristics of boza. Turkish Journal of Agriculture and Forestry, 42, 412-422. https://doi.org/10.3906/tar-1802-3
- Catzeddu, P. (2019). Sourdough breads. In Flour and breads and their fortification in health and disease prevention (pp. 177-188). Academic Press. https://doi.org/10.1016/B978-0-12-814639-2.00014-9
- Cizeikiene, D., Juodeikiene, G., Bartkiene, E., Damasius, J., Paskevicius, A. (2015). Phytase activity of lactic acid bacteria and their impact on the solubility of minerals from wholemeal wheat bread. International Journal of Food Sciences and Nutrition, 66(7), 736-742. https://doi.org/10.3109/09637486.2015.1088939
- Damayanti, E., Ratisiwi, F., Istiqomah, L., Sembiring, L., Febrisiantosa, A. (2017). Phytate degrading activities of lactic acid bacteria isolated from traditional fermented food. AIP Conference Proceedings 1823, 020053. https://doi.org/10.1063/1.4978126
- De Angelis, M., Gallo, G., Corbo, M. R., McSweeney, P. L., Faccia, M., Giovine, M., Gobbetti, M. (2003). Phytase activity in sourdough lactic acid bacteria: purification and characterization of a phytase from Lactobacillus sanfranciscensis CB1. International Journal of Food Microbiology, 87(3), 259-270. https://doi.org/10.1016/S0168-1605(03)00072-2
- De Vuyst, L., Van Kerrebroeck, S., Harth, H., Huys, G., Daniel, H. M., Weckx, S. (2014). Microbial ecology of sourdough fermentations: diverse or uniform?. Food Microbiology, 37, 11-29. https://doi.org/10.1016/j.fm.2013.06.002
Details
Primary Language
English
Subjects
Food Engineering
Journal Section
Research Article
Authors
Murat Doğan
*
0000-0001-6391-4887
Türkiye
İsmail Hakkı Tekiner
This is me
0000-0002-7248-2446
Türkiye
Publication Date
April 1, 2020
Submission Date
November 1, 2019
Acceptance Date
January 23, 2020
Published in Issue
Year 2020 Volume: 6 Number: 2