Research Article

Evaluating the microbial growth kinetics and artificial gastric digestion survival of a novel Pichia kudriavzevii FOL-04

Volume: 31 Number: 1 June 15, 2022
  • Ismail Gumustop
  • Fatih Ortakci *
EN

Evaluating the microbial growth kinetics and artificial gastric digestion survival of a novel Pichia kudriavzevii FOL-04

Abstract

Present study aims to explore Pichia kudriavzevii FOL-04 (FOL-04)’s: i) survival against artificial gastric juice (AGJ) and artificial bile juice (ABJ), ii) growth kinetics in shake flask (SF) and fed-batch trials (FBT). Survival of FOL-04 as measured by relative cell density (RCD) against AGJ and ABJ was screened at four different pH-levels (control, 3, 2, 1.5) and ox-bile concentrations (control, 0.2%, 1%, 2%), respectively. Growth kinetics was calculated by periodic measurement of OD600 in SF (225 rpm, 30°C) or in FBT using exponential feeding regimen where pH, dissolved-oxygen and temperature were controlled at 5.5, 21%, and 30°C, respectively. The doubling-time, maximum specific growth rate, and final cell densities achieved for SF and FBT were 81.7min, 1.67, 11.79 and 170.4 min, 4.75, 37.95, respectively. RCDs calculated were similar for pH=3 and control vs both were significantly higher(p<0.05) than pH=1.5 and 2 with the latter two pH-levels were not significantly different(p>0.05). RCDs were similar across control, 0.2%, and 1% ox-bile levels(p>0.05). However, 2% ox-bile yielded significantly lower RCD (p<0.05) compared to all except 1%. FOL-04 is a potential probiotic candidate showing robustness against AGJ and ABJ and remarkable biomass increase was achieved when grown under FBT which could pave the way for developing a yeast-based probiotic using this strain.

Keywords

Thanks

We thank to Michael Schroda, Prof. Dr., Technische Universität Kaiserslautern, Germany for the supply of the strains and the constructs.

References

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Details

Primary Language

English

Subjects

Food Engineering

Journal Section

Research Article

Authors

Ismail Gumustop This is me
0000-0002-1452-1283
Türkiye

Fatih Ortakci * This is me
0000-0003-1319-0854
Türkiye

Publication Date

June 15, 2022

Submission Date

October 22, 2021

Acceptance Date

April 5, 2022

Published in Issue

Year 2022 Volume: 31 Number: 1

APA
Gumustop, I., & Ortakci, F. (2022). Evaluating the microbial growth kinetics and artificial gastric digestion survival of a novel Pichia kudriavzevii FOL-04. Biotech Studies, 31(1), 28-35. https://doi.org/10.38042/biotechstudies.1103767
AMA
1.Gumustop I, Ortakci F. Evaluating the microbial growth kinetics and artificial gastric digestion survival of a novel Pichia kudriavzevii FOL-04. Biotech Studies. 2022;31(1):28-35. doi:10.38042/biotechstudies.1103767
Chicago
Gumustop, Ismail, and Fatih Ortakci. 2022. “Evaluating the Microbial Growth Kinetics and Artificial Gastric Digestion Survival of a Novel Pichia Kudriavzevii FOL-04”. Biotech Studies 31 (1): 28-35. https://doi.org/10.38042/biotechstudies.1103767.
EndNote
Gumustop I, Ortakci F (June 1, 2022) Evaluating the microbial growth kinetics and artificial gastric digestion survival of a novel Pichia kudriavzevii FOL-04. Biotech Studies 31 1 28–35.
IEEE
[1]I. Gumustop and F. Ortakci, “Evaluating the microbial growth kinetics and artificial gastric digestion survival of a novel Pichia kudriavzevii FOL-04”, Biotech Studies, vol. 31, no. 1, pp. 28–35, June 2022, doi: 10.38042/biotechstudies.1103767.
ISNAD
Gumustop, Ismail - Ortakci, Fatih. “Evaluating the Microbial Growth Kinetics and Artificial Gastric Digestion Survival of a Novel Pichia Kudriavzevii FOL-04”. Biotech Studies 31/1 (June 1, 2022): 28-35. https://doi.org/10.38042/biotechstudies.1103767.
JAMA
1.Gumustop I, Ortakci F. Evaluating the microbial growth kinetics and artificial gastric digestion survival of a novel Pichia kudriavzevii FOL-04. Biotech Studies. 2022;31:28–35.
MLA
Gumustop, Ismail, and Fatih Ortakci. “Evaluating the Microbial Growth Kinetics and Artificial Gastric Digestion Survival of a Novel Pichia Kudriavzevii FOL-04”. Biotech Studies, vol. 31, no. 1, June 2022, pp. 28-35, doi:10.38042/biotechstudies.1103767.
Vancouver
1.Ismail Gumustop, Fatih Ortakci. Evaluating the microbial growth kinetics and artificial gastric digestion survival of a novel Pichia kudriavzevii FOL-04. Biotech Studies. 2022 Jun. 1;31(1):28-35. doi:10.38042/biotechstudies.1103767

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