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Cited by 88Probiotics and Fermented FoodsReproductive tract infections researchAquaculture disease management and microbiota

Gastrointestinal transit tolerance, cell surface hydrophobicity, and functional attributes of Lactobacillus Acidophilus strains isolated from Indigenous Dahi

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Farid, Wajiha, Masud, Tariq, Sohail, Asma, Ahmad, Nazir, Naqvi, S. M. Saqlan, Khan, Sipper, Ali, Amjad, Khalifa, Salah A. +5 more·2021·Food Science & Nutrition
DOI 10.1002/fsn3.2468PMC PMC8441270
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Abstract

Strains of Lactobacillus acidophilus WFA1 (KU877440), WFA2 (KU877441), and WFA3 (KU877442) were isolated from indigenous Dahi (yogurt), screened, and selected based on acid and bile tolerance along with the antimicrobial activity. These selected strains were further assessed for their probiotic and functional attributes. Results for simulated gastric and intestinal tolerance/ resistance revealed that all three strains can resist and survive under the following mentioned conditions. To access cell surface hydrophobicity, bacterial adhesion to hydrocarbons (BATH), cellular auto‐aggregation, and salt aggregation were performed. In BATH, adhesion of strains against three hydrocarbons namely xylene, dichloromethane, and hexadecane was conducted. The results show that strains showed the least adhesion to xylene (54.25%) as compared to dichloromethane (55.25%) and hexadecane (56.65%). WFA1 showed maximum adherence percentage (55.48%) followed WFA2 (55.48%) and WFA3 (51.38%). Cellular auto‐aggregation varied from 21.72% to 30.73% for WFA3 and WFA1, respectively. In the salt aggregation test (SAT), WFA1, WFA2, and WFA3 aggregated at 0.6, 1.0, and 2.0 molar concentrations of ammonium sulfate, respectively. PCR amplification of bile salt hydrolase gene (bsh) was performed and sequences were submitted to the public database of NCBI and Gene bank under accession numbers, KY689139, KY689140, and KY689141. Additionally, a cholesterol‐lowering assay was conducted and up to 26% reduction in cholesterol was observed by the strains. Regarding functional properties, exopolysaccharide (EPS) production, and antioxidant potential, strain WFA1 showed promising results EPS (1.027mg/ml), DPPH (80.66%), ABTS (81.97%), and reducing power (1.787). It can be concluded from the present study that the mentioned strains of L. acidophilus (WFA1, WFA2, and WFA3) are strongly hydrophobic; thus having an ability to survive and colonize under the gastrointestinal tract which confirms their probiotic nature. Regarding their functional properties, L. acidophilus WFA1 (KU877440) showed excellent properties of antioxidants and EPS production.

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Authors
Farid, W., Masud, T., Sohail, A., Ahmad, N., Naqvi, S. M. S., Khan, S., Ali, A., Khalifa, S. A., Hussain, A., Ali, S., Saghir, M., Siddeeg, A., & Manzoor, M. F.
Affiliations
  • Pir Mehr Ali Shah Arid Agriculture University (PK)
  • Government College University, Faisalabad (PK)
  • University of Hohenheim (DE)
  • Karakoram International University (PK)
  • Zagazig University (EG)
  • National University of Sciences and Technology (PK)
  • University of Gezira (SD)
  • Jiangsu University (CN)
Corresponding author
  • Masud, Tariq
  • Siddeeg, Azhari
  • Manzoor, Muhammad Faisal
ORCID
Venue
Food Science & Nutrition
Publisher
Wiley
Published
2021-07-13
Volume
9
Issue
9
Pages
5092-5102
ISSN
2048-7177 (ISSN-L)
DOI
10.1002/fsn3.2468
PMC
PMC8441270
OpenAlex
W3182121705
Cited by
88
References
52
Citations by year
2026: 24 · 2025: 26 · 2024: 25 · 2023: 5 · 2022: 6 · 2021: 2
FWCI
5.68
Type
journal article
Language
en
Open access
Licence
Locations
  • Food Science & Nutrition (publishedVersion, cc-by)
  • Europe PMC (PubMed Central) (publishedVersion, other-oa)
  • PubMed Central (publishedVersion, cc-by)
  • PubMed (publishedVersion)
  • DOAJ (DOAJ: Directory of Open Access Journals) (submittedVersion, cc-by-sa)
Funders
Higher Education Commision, Pakistan
Topics
  • Life Sciences › Agricultural and Biological Sciences › Food Science › Probiotics and Fermented Foods
  • Life Sciences › Immunology and Microbiology › Microbiology › Reproductive tract infections research
  • Life Sciences › Immunology and Microbiology › Immunology › Aquaculture disease management and microbiota
Keywords
Lactobacillus acidophilus, probiotic strains, bile tolerance, acid resistance, cell surface hydrophobicity, bile salt hydrolase, cholesterol lowering, exopolysaccharide production, antioxidant activity, antimicrobial activity, self-aggregation

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