Türk Tarım ve Doğa Bilimleri Dergisi

Yazarlar: Oğuz AĞYAR, Fatih ÜÇKARDEŞ

Konular:-

Anahtar Kelimeler:Lactic Acid Bacteria,Bacterial Growth Curve,Modified Gompertz model,L .acidophilus,L. crispatus,L. rhamosus

Özet: The purpose of this study, the reached durations of colony growth, growth rate and maximum bacterial growth rate were investigated that Lactobacillus acidophilus, Lactobacillus crispatus and Lactobacillus rhamnosus" of commonly used probiotics property LAB's three different strains which were measured at respectively 30°C and 37°C for the 96 hour colony growths OD (A600) in the GM17 and MRS stocks were modelled with modified Gompertz model strains. At the same time, as using modified Gompertz model parameters were tried to be determined which species of bacteria may be more dominant. As a result of modified Gompertz model, the amount of the maximum growth of L. crispatus (A=1.773) bacteria type was respectively found to be much more than L. rhamnosus (A=1542) and L. acidophilus (A=1.397) bacterial species (P<0.05). However, the maximum growth rate of L. crispatus type bacteria was higher than other bacterial species (P<0.05). Although there was shorter time to reach the maximum speed, this was not a significant difference between the speeds (P>0.05). L. acidophilus (R=0.9972), and L. rhamnosus (R=0.9911) species showed better compliance than L. crispatus (R=0.9868) type to modified Gompertz model (P <0.05). As a result, of the strain of L. crispatus was more dominant than the other bacterial strains in the media.

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