Probiotic potential of Tetragenococcus halophilus EFEL7002 isolated from Korean soy Meju

Abstract Background Probiotic starters can improve the flavor profile, texture, and health-promoting properties of fermented foods. Tetragenococcus halophilus is a halophilic lactic acid bacterium that is a candidate starter for high-salt fermented foods. However, the species is known to produce bio...

Full description

Bibliographic Details
Main Authors: Da Hye Kim, Seul-Ah Kim, Yu Mi Jo, Hee Seo, Ga Yun Kim, Seong Won Cheon, Su Hwi Yang, Che Ok Jeon, Nam Soo Han
Format: Article
Language:English
Published: BMC 2022-06-01
Series:BMC Microbiology
Subjects:
Online Access:https://doi.org/10.1186/s12866-022-02561-7
_version_ 1811258134776250368
author Da Hye Kim
Seul-Ah Kim
Yu Mi Jo
Hee Seo
Ga Yun Kim
Seong Won Cheon
Su Hwi Yang
Che Ok Jeon
Nam Soo Han
author_facet Da Hye Kim
Seul-Ah Kim
Yu Mi Jo
Hee Seo
Ga Yun Kim
Seong Won Cheon
Su Hwi Yang
Che Ok Jeon
Nam Soo Han
author_sort Da Hye Kim
collection DOAJ
description Abstract Background Probiotic starters can improve the flavor profile, texture, and health-promoting properties of fermented foods. Tetragenococcus halophilus is a halophilic lactic acid bacterium that is a candidate starter for high-salt fermented foods. However, the species is known to produce biogenic amines, which are associated with neurotoxicity. Here, we report a probiotic starter strain of T. halophilus, EFEL7002, that is suitable for use in high-salt fermentation. Results EFEL7002 was isolated from Korean meju (fermented soybean) and identified as T. halophilus, with 99.85% similarity. The strain is safe for use in food as it is a non-hemolytic and non-biogenic amine producer. EFEL7002 is tolerant to gastrointestinal conditions and can adhere to Caco-2 cells. This strain showed antioxidant, anti-inflammatory, and protective effects against the human gut epithelial barrier. EFEL7002 grew well in media containing 0–18% NaCl showing maximum cell densities in 6% or 12% NaCl. Conclusions T. halophilus EFEL7002 can be used as a health-promoting probiotic starter culture for various salty fermented foods.
first_indexed 2024-04-12T18:08:30Z
format Article
id doaj.art-c4988d8ca8fc4e06b0c7580c60e73d6d
institution Directory Open Access Journal
issn 1471-2180
language English
last_indexed 2024-04-12T18:08:30Z
publishDate 2022-06-01
publisher BMC
record_format Article
series BMC Microbiology
spelling doaj.art-c4988d8ca8fc4e06b0c7580c60e73d6d2022-12-22T03:21:55ZengBMCBMC Microbiology1471-21802022-06-0122111710.1186/s12866-022-02561-7Probiotic potential of Tetragenococcus halophilus EFEL7002 isolated from Korean soy MejuDa Hye Kim0Seul-Ah Kim1Yu Mi Jo2Hee Seo3Ga Yun Kim4Seong Won Cheon5Su Hwi Yang6Che Ok Jeon7Nam Soo Han8Brain Korea 21 Center for Bio-Health Industry, Division of Animal, Horticultural, and Food Sciences, Chungbuk National UniversityBrain Korea 21 Center for Bio-Health Industry, Division of Animal, Horticultural, and Food Sciences, Chungbuk National UniversityBrain Korea 21 Center for Bio-Health Industry, Division of Animal, Horticultural, and Food Sciences, Chungbuk National UniversityBrain Korea 21 Center for Bio-Health Industry, Division of Animal, Horticultural, and Food Sciences, Chungbuk National UniversityBrain Korea 21 Center for Bio-Health Industry, Division of Animal, Horticultural, and Food Sciences, Chungbuk National UniversityBrain Korea 21 Center for Bio-Health Industry, Division of Animal, Horticultural, and Food Sciences, Chungbuk National UniversityBrain Korea 21 Center for Bio-Health Industry, Division of Animal, Horticultural, and Food Sciences, Chungbuk National UniversityDepartment of Life Science, Chung-Ang UniversityBrain Korea 21 Center for Bio-Health Industry, Division of Animal, Horticultural, and Food Sciences, Chungbuk National UniversityAbstract Background Probiotic starters can improve the flavor profile, texture, and health-promoting properties of fermented foods. Tetragenococcus halophilus is a halophilic lactic acid bacterium that is a candidate starter for high-salt fermented foods. However, the species is known to produce biogenic amines, which are associated with neurotoxicity. Here, we report a probiotic starter strain of T. halophilus, EFEL7002, that is suitable for use in high-salt fermentation. Results EFEL7002 was isolated from Korean meju (fermented soybean) and identified as T. halophilus, with 99.85% similarity. The strain is safe for use in food as it is a non-hemolytic and non-biogenic amine producer. EFEL7002 is tolerant to gastrointestinal conditions and can adhere to Caco-2 cells. This strain showed antioxidant, anti-inflammatory, and protective effects against the human gut epithelial barrier. EFEL7002 grew well in media containing 0–18% NaCl showing maximum cell densities in 6% or 12% NaCl. Conclusions T. halophilus EFEL7002 can be used as a health-promoting probiotic starter culture for various salty fermented foods.https://doi.org/10.1186/s12866-022-02561-7Tetragenococcus halophilusProbioticsBiogenic amineSalty fermented foods
spellingShingle Da Hye Kim
Seul-Ah Kim
Yu Mi Jo
Hee Seo
Ga Yun Kim
Seong Won Cheon
Su Hwi Yang
Che Ok Jeon
Nam Soo Han
Probiotic potential of Tetragenococcus halophilus EFEL7002 isolated from Korean soy Meju
BMC Microbiology
Tetragenococcus halophilus
Probiotics
Biogenic amine
Salty fermented foods
title Probiotic potential of Tetragenococcus halophilus EFEL7002 isolated from Korean soy Meju
title_full Probiotic potential of Tetragenococcus halophilus EFEL7002 isolated from Korean soy Meju
title_fullStr Probiotic potential of Tetragenococcus halophilus EFEL7002 isolated from Korean soy Meju
title_full_unstemmed Probiotic potential of Tetragenococcus halophilus EFEL7002 isolated from Korean soy Meju
title_short Probiotic potential of Tetragenococcus halophilus EFEL7002 isolated from Korean soy Meju
title_sort probiotic potential of tetragenococcus halophilus efel7002 isolated from korean soy meju
topic Tetragenococcus halophilus
Probiotics
Biogenic amine
Salty fermented foods
url https://doi.org/10.1186/s12866-022-02561-7
work_keys_str_mv AT dahyekim probioticpotentialoftetragenococcushalophilusefel7002isolatedfromkoreansoymeju
AT seulahkim probioticpotentialoftetragenococcushalophilusefel7002isolatedfromkoreansoymeju
AT yumijo probioticpotentialoftetragenococcushalophilusefel7002isolatedfromkoreansoymeju
AT heeseo probioticpotentialoftetragenococcushalophilusefel7002isolatedfromkoreansoymeju
AT gayunkim probioticpotentialoftetragenococcushalophilusefel7002isolatedfromkoreansoymeju
AT seongwoncheon probioticpotentialoftetragenococcushalophilusefel7002isolatedfromkoreansoymeju
AT suhwiyang probioticpotentialoftetragenococcushalophilusefel7002isolatedfromkoreansoymeju
AT cheokjeon probioticpotentialoftetragenococcushalophilusefel7002isolatedfromkoreansoymeju
AT namsoohan probioticpotentialoftetragenococcushalophilusefel7002isolatedfromkoreansoymeju