کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
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684923 | 889029 | 2008 | 5 صفحه PDF | دانلود رایگان |
![عکس صفحه اول مقاله: Rapid quantifiable assessment of nutritional parameters influencing pediocin production by Pediococcus acidilactici NRRL B5627 Rapid quantifiable assessment of nutritional parameters influencing pediocin production by Pediococcus acidilactici NRRL B5627](/preview/png/684923.png)
A direct plate bioassay procedure was applied for rapid and quantifiable assessment of the influence of various nutritional parameters on pediocin production by Pediococcus acidilactici NRRL B5627. Solid-state cultivation of the microorganism was done on MRS-based media over 3-and 6-hours incubation periods. Nutritional parameters assessed included the carbon source (glucose, sucrose, fructose, galactose, glycerol), and various salts (NH4PO4, CaCl2, KH2PO4, MnSO4 · H2O). Glucose was found to be the optimal carbon source while glycerol exhibited the most suppressive effect. Using glucose as the carbon source, addition of various salts, in amounts used in liquid media commonly applied in the cultivation of the pediococci, was assessed with respect to bacteriocin production on a per cell basis. Experimental data obtained showed that several nutritional parameters repress pediocin production by P. acidilactici, while the direct plate assay proved to be a good pilot assay prior to conducting more intensive kinetic analysis in liquid cultivation.
Journal: Bioresource Technology - Volume 99, Issue 14, September 2008, Pages 6646–6650