Safety Evaluation of <i>Bacillus subtilis</i> IDCC1101, Newly Isolated from Cheonggukjang, for Industrial Applications

The present study aimed to evaluate the safety of <i>Bacillus subtilis</i> (BS) IDCC1101, newly isolated from Cheonggukjang in Korea. Genome sequencing of BS IDCC1101 was performed to investigate the presence of secondary metabolites, virulence, antibiotic resistance, and mobile elements...

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Main Authors: Su-Hyeon Kim, Gashaw Assefa Yehuala, Won Yeong Bang, Jungwoo Yang, Young Hoon Jung, Mi-Kyung Park
Format: Article
Language:English
Published: MDPI AG 2022-12-01
Series:Microorganisms
Subjects:
Online Access:https://www.mdpi.com/2076-2607/10/12/2494
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author Su-Hyeon Kim
Gashaw Assefa Yehuala
Won Yeong Bang
Jungwoo Yang
Young Hoon Jung
Mi-Kyung Park
author_facet Su-Hyeon Kim
Gashaw Assefa Yehuala
Won Yeong Bang
Jungwoo Yang
Young Hoon Jung
Mi-Kyung Park
author_sort Su-Hyeon Kim
collection DOAJ
description The present study aimed to evaluate the safety of <i>Bacillus subtilis</i> (BS) IDCC1101, newly isolated from Cheonggukjang in Korea. Genome sequencing of BS IDCC1101 was performed to investigate the presence of secondary metabolites, virulence, antibiotic resistance, and mobile elements. Its phenotypic safety analyses included antibiotic susceptibility, enzyme activity, carbohydrate utilization, production of biogenic amines (BAs) and D-/L-lactate, hemolytic activity, and toxicities in HaCaT cells and rats. The genome of BS IDCC1101 consisted of 4,118,950 bp with 3077 functional genes. Among them, antimicrobial and antifungal secondary metabolites were found, such as fengycin, bacillibactin, and bacilysin. Antibiotic resistance and virulence genes did not exhibit transferability since they did not overlap with mobile elements in the genome. BS IDCC1101 was susceptible to almost all antibiotics suggested for assessment of BS’s antibiotic susceptibility by EFSA guidelines, except for streptomycin. BS IDCC1101 showed the utilization of a wide range of 27 carbohydrates, as well as enzyme activities such as alkaline phosphatase, esterase, esterase lipase, naphthol-AS-BI-phosphohydrolase, α-galactosidase, β-galactosidase, α-glucosidase, and β-glucosidase activities. Additionally, BS IDCC1101 did not exhibit the production of D-/L-lactate and hemolytic activities. Its toxicity in HaCaT cells and rats was also not detected. Thus, these genotypic and phenotypic findings indicate that BS IDCC1101 can be safely used for industrial applications.
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spelling doaj.art-cd300d2a7b954230aa872415ac6015ba2023-11-24T16:50:03ZengMDPI AGMicroorganisms2076-26072022-12-011012249410.3390/microorganisms10122494Safety Evaluation of <i>Bacillus subtilis</i> IDCC1101, Newly Isolated from Cheonggukjang, for Industrial ApplicationsSu-Hyeon Kim0Gashaw Assefa Yehuala1Won Yeong Bang2Jungwoo Yang3Young Hoon Jung4Mi-Kyung Park5School of Food Science and Biotechnology, Kyungpook National University, Daegu 41566, Republic of KoreaSchool of Food Science and Biotechnology, Kyungpook National University, Daegu 41566, Republic of KoreaIldong Bioscience, Pyeongtaek-si 17957, Republic of KoreaIldong Bioscience, Pyeongtaek-si 17957, Republic of KoreaSchool of Food Science and Biotechnology, Kyungpook National University, Daegu 41566, Republic of KoreaSchool of Food Science and Biotechnology, Kyungpook National University, Daegu 41566, Republic of KoreaThe present study aimed to evaluate the safety of <i>Bacillus subtilis</i> (BS) IDCC1101, newly isolated from Cheonggukjang in Korea. Genome sequencing of BS IDCC1101 was performed to investigate the presence of secondary metabolites, virulence, antibiotic resistance, and mobile elements. Its phenotypic safety analyses included antibiotic susceptibility, enzyme activity, carbohydrate utilization, production of biogenic amines (BAs) and D-/L-lactate, hemolytic activity, and toxicities in HaCaT cells and rats. The genome of BS IDCC1101 consisted of 4,118,950 bp with 3077 functional genes. Among them, antimicrobial and antifungal secondary metabolites were found, such as fengycin, bacillibactin, and bacilysin. Antibiotic resistance and virulence genes did not exhibit transferability since they did not overlap with mobile elements in the genome. BS IDCC1101 was susceptible to almost all antibiotics suggested for assessment of BS’s antibiotic susceptibility by EFSA guidelines, except for streptomycin. BS IDCC1101 showed the utilization of a wide range of 27 carbohydrates, as well as enzyme activities such as alkaline phosphatase, esterase, esterase lipase, naphthol-AS-BI-phosphohydrolase, α-galactosidase, β-galactosidase, α-glucosidase, and β-glucosidase activities. Additionally, BS IDCC1101 did not exhibit the production of D-/L-lactate and hemolytic activities. Its toxicity in HaCaT cells and rats was also not detected. Thus, these genotypic and phenotypic findings indicate that BS IDCC1101 can be safely used for industrial applications.https://www.mdpi.com/2076-2607/10/12/2494<i>Bacillus subtilis</i> IDCC1101safety evaluationindustrial applicationprobioticsgenomic analysis
spellingShingle Su-Hyeon Kim
Gashaw Assefa Yehuala
Won Yeong Bang
Jungwoo Yang
Young Hoon Jung
Mi-Kyung Park
Safety Evaluation of <i>Bacillus subtilis</i> IDCC1101, Newly Isolated from Cheonggukjang, for Industrial Applications
Microorganisms
<i>Bacillus subtilis</i> IDCC1101
safety evaluation
industrial application
probiotics
genomic analysis
title Safety Evaluation of <i>Bacillus subtilis</i> IDCC1101, Newly Isolated from Cheonggukjang, for Industrial Applications
title_full Safety Evaluation of <i>Bacillus subtilis</i> IDCC1101, Newly Isolated from Cheonggukjang, for Industrial Applications
title_fullStr Safety Evaluation of <i>Bacillus subtilis</i> IDCC1101, Newly Isolated from Cheonggukjang, for Industrial Applications
title_full_unstemmed Safety Evaluation of <i>Bacillus subtilis</i> IDCC1101, Newly Isolated from Cheonggukjang, for Industrial Applications
title_short Safety Evaluation of <i>Bacillus subtilis</i> IDCC1101, Newly Isolated from Cheonggukjang, for Industrial Applications
title_sort safety evaluation of i bacillus subtilis i idcc1101 newly isolated from cheonggukjang for industrial applications
topic <i>Bacillus subtilis</i> IDCC1101
safety evaluation
industrial application
probiotics
genomic analysis
url https://www.mdpi.com/2076-2607/10/12/2494
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