Probiotic Potential and Enhanced Adhesion of Fermented Foods-Isolated Lactic Acid Bacteria to Intestinal Epithelial Caco-2 and HT-29 Cells

This study evaluated the probiotic potential of lactic acid bacteria (LAB) isolated from fermented milk and soymilk products purchased from local markets. The LAB strains were assessed for acid and bile resistance, antibiotic resistance, and adhesion to human intestinal epithelial models. <i>S...

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Main Authors: Eun Ah Sim, Seon-Young Kim, SangNam Kim, Eun-Gyung Mun
Format: Article
Language:English
Published: MDPI AG 2024-12-01
Series:Microorganisms
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Online Access:https://www.mdpi.com/2076-2607/13/1/32
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author Eun Ah Sim
Seon-Young Kim
SangNam Kim
Eun-Gyung Mun
author_facet Eun Ah Sim
Seon-Young Kim
SangNam Kim
Eun-Gyung Mun
author_sort Eun Ah Sim
collection DOAJ
description This study evaluated the probiotic potential of lactic acid bacteria (LAB) isolated from fermented milk and soymilk products purchased from local markets. The LAB strains were assessed for acid and bile resistance, antibiotic resistance, and adhesion to human intestinal epithelial models. <i>Streptococcus thermophilus</i> (JAMI_LB_02) and <i>Lactiplantibacillus plantarum</i> (JAMI_LB_05) showed the highest survival rates in artificial gastric and bile juices, at 87.17 ± 0.02% and 96.71 ± 4.10%, respectively, with all strains (except JAMI_LB_03) demonstrating antibiotic resistance. Adhesion ability indicated the superior performance of JAMI_LB_02 and JAMI_LB_05 compared to standard strains. JAMI_LB_02 adhered to Caco-2 cells at 2.10 ± 0.94% and to HT-29 cells at 3.32 ± 0.38%, exceeding standard strains (1.06 ± 0.13% and 1.89 ± 0.58%). JAMI_LB_05 achieved the highest rates at 5.62 ± 1.33% on Caco-2 and 5.76 ± 0.46% on HT-29 cells. Their combination (JAMI_LB_02 + JAMI_LB_05) significantly enhanced adhesion to 18.57 ± 5.49% on Caco-2 and 21.67 ± 8.19% on HT-29 cells, demonstrating strong synergy. These findings highlight the probiotic potential of the isolated LAB strains, particularly in mixed formulations, which may improve intestinal survival, adaptability, and efficacy. Further in vivo studies are warranted to validate their clinical applications and optimize strain combinations for human health benefits.
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spelling doaj-art-ca598c8b56b54033a44a41d40ca01ea22025-01-24T13:42:21ZengMDPI AGMicroorganisms2076-26072024-12-011313210.3390/microorganisms13010032Probiotic Potential and Enhanced Adhesion of Fermented Foods-Isolated Lactic Acid Bacteria to Intestinal Epithelial Caco-2 and HT-29 CellsEun Ah Sim0Seon-Young Kim1SangNam Kim2Eun-Gyung Mun3Jeonju AgroBio-Materials Institute (JAMI), Jeonju-si 54810, Republic of KoreaJeonju AgroBio-Materials Institute (JAMI), Jeonju-si 54810, Republic of KoreaJeonju AgroBio-Materials Institute (JAMI), Jeonju-si 54810, Republic of KoreaJeonju AgroBio-Materials Institute (JAMI), Jeonju-si 54810, Republic of KoreaThis study evaluated the probiotic potential of lactic acid bacteria (LAB) isolated from fermented milk and soymilk products purchased from local markets. The LAB strains were assessed for acid and bile resistance, antibiotic resistance, and adhesion to human intestinal epithelial models. <i>Streptococcus thermophilus</i> (JAMI_LB_02) and <i>Lactiplantibacillus plantarum</i> (JAMI_LB_05) showed the highest survival rates in artificial gastric and bile juices, at 87.17 ± 0.02% and 96.71 ± 4.10%, respectively, with all strains (except JAMI_LB_03) demonstrating antibiotic resistance. Adhesion ability indicated the superior performance of JAMI_LB_02 and JAMI_LB_05 compared to standard strains. JAMI_LB_02 adhered to Caco-2 cells at 2.10 ± 0.94% and to HT-29 cells at 3.32 ± 0.38%, exceeding standard strains (1.06 ± 0.13% and 1.89 ± 0.58%). JAMI_LB_05 achieved the highest rates at 5.62 ± 1.33% on Caco-2 and 5.76 ± 0.46% on HT-29 cells. Their combination (JAMI_LB_02 + JAMI_LB_05) significantly enhanced adhesion to 18.57 ± 5.49% on Caco-2 and 21.67 ± 8.19% on HT-29 cells, demonstrating strong synergy. These findings highlight the probiotic potential of the isolated LAB strains, particularly in mixed formulations, which may improve intestinal survival, adaptability, and efficacy. Further in vivo studies are warranted to validate their clinical applications and optimize strain combinations for human health benefits.https://www.mdpi.com/2076-2607/13/1/32lactic acid bacteria (LAB)probioticsadhesion capacity
spellingShingle Eun Ah Sim
Seon-Young Kim
SangNam Kim
Eun-Gyung Mun
Probiotic Potential and Enhanced Adhesion of Fermented Foods-Isolated Lactic Acid Bacteria to Intestinal Epithelial Caco-2 and HT-29 Cells
Microorganisms
lactic acid bacteria (LAB)
probiotics
adhesion capacity
title Probiotic Potential and Enhanced Adhesion of Fermented Foods-Isolated Lactic Acid Bacteria to Intestinal Epithelial Caco-2 and HT-29 Cells
title_full Probiotic Potential and Enhanced Adhesion of Fermented Foods-Isolated Lactic Acid Bacteria to Intestinal Epithelial Caco-2 and HT-29 Cells
title_fullStr Probiotic Potential and Enhanced Adhesion of Fermented Foods-Isolated Lactic Acid Bacteria to Intestinal Epithelial Caco-2 and HT-29 Cells
title_full_unstemmed Probiotic Potential and Enhanced Adhesion of Fermented Foods-Isolated Lactic Acid Bacteria to Intestinal Epithelial Caco-2 and HT-29 Cells
title_short Probiotic Potential and Enhanced Adhesion of Fermented Foods-Isolated Lactic Acid Bacteria to Intestinal Epithelial Caco-2 and HT-29 Cells
title_sort probiotic potential and enhanced adhesion of fermented foods isolated lactic acid bacteria to intestinal epithelial caco 2 and ht 29 cells
topic lactic acid bacteria (LAB)
probiotics
adhesion capacity
url https://www.mdpi.com/2076-2607/13/1/32
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AT sangnamkim probioticpotentialandenhancedadhesionoffermentedfoodsisolatedlacticacidbacteriatointestinalepithelialcaco2andht29cells
AT eungyungmun probioticpotentialandenhancedadhesionoffermentedfoodsisolatedlacticacidbacteriatointestinalepithelialcaco2andht29cells