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Zhao M, Liang X, Meng Y, Lu H, Lin K, Gong P, Liu T, Yi H, Pan J, Zhang Y, Zhang Z, Zhang L. Probiotics induce intestinal IgA secretion in weanling mice potentially through promoting intestinal APRIL expression and modulating the gut microbiota composition. Food Funct 2024; 15:4862-4873. [PMID: 38587236 DOI: 10.1039/d4fo00962b] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 04/09/2024]
Abstract
Intestinal infections are strongly associated with infant mortality, and intestinal immunoglobulin A (IgA) is important to protect infants from intestinal infections after weaning. This study aims to screen probiotics that can promote the production of intestinal IgA after weaning and further explore their potential mechanisms of action. In this study, probiotics promoting intestinal IgA production were screened in weanling mouse models. The results showed that oral administration of Bifidobacterium bifidum (B. bifidum) FL228.1 and Bifidobacterium bifidum (B. bifidum) FL276.1 significantly enhanced IgA levels in the small intestine and upregulated the expression of a proliferation-inducing ligand (APRIL) and its upstream regulatory factor toll-like receptor 4 (TLR4). Furthermore, B. bifidum FL228.1 upregulated the relative abundance of Lactobacillus, while B. bifidum FL276.1 increased the relative abundance of Marvinbryantia and decreased Mucispirillum, further elevating intestinal IgA levels. In summary, B. bifidum FL228.1 and B. bifidum FL276.1 can induce IgA production in the intestinal tract of weanling mice by promoting intestinal APRIL expression and mediating changes in the gut microbiota, thus playing a significant role in enhancing local intestinal immunity in infants.
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Affiliation(s)
- Maozhen Zhao
- College of Food Science and Engineering, Ocean University of China, Qingdao 266000, China.
| | - Xi Liang
- College of Public Health, Qingdao University, Qingdao, 266000, China
| | - Yang Meng
- College of Food Science and Engineering, Ocean University of China, Qingdao 266000, China.
| | - Haiyan Lu
- College of Food Science and Engineering, Ocean University of China, Qingdao 266000, China.
| | - Kai Lin
- College of Food Science and Engineering, Ocean University of China, Qingdao 266000, China.
| | - Pimin Gong
- College of Food Science and Engineering, Ocean University of China, Qingdao 266000, China.
| | - Tongjie Liu
- College of Food Science and Engineering, Ocean University of China, Qingdao 266000, China.
| | - Huaxi Yi
- College of Food Science and Engineering, Ocean University of China, Qingdao 266000, China.
| | - Jiancun Pan
- Heilongjiang Feihe Dairy Co., Ltd., Qiqihar, 161000, China
| | - Yongjiu Zhang
- Heilongjiang Feihe Dairy Co., Ltd., Qiqihar, 161000, China
| | - Zhe Zhang
- College of Food Science and Engineering, Ocean University of China, Qingdao 266000, China.
| | - Lanwei Zhang
- College of Food Science and Engineering, Ocean University of China, Qingdao 266000, China.
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2
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Jena R, Choudhury PK. Bifidobacteria in Fermented Dairy Foods: A Health Beneficial Outlook. Probiotics Antimicrob Proteins 2023:10.1007/s12602-023-10189-w. [PMID: 37979040 DOI: 10.1007/s12602-023-10189-w] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 11/08/2023] [Indexed: 11/19/2023]
Abstract
Bifidobacteria, frequently present in the human gastrointestinal tract, play a crucial role in preserving gut health and are mostly recognized as beneficial probiotic microorganisms. They are associated with fermenting complex carbohydrates, resulting in the production of short-chain fatty acids, bioactive peptides, exopolysaccharides, and vitamins, which provide energy and contribute to gut homeostasis. In light of these findings, research in food processing technologies has harnessed probiotic bacteria such as lactobacilli and bifidobacteria for the formulation of a wide range of fermented dairy products, ensuring their maximum survival and contributing to the development of distinctive quality characteristics and therapeutic benefits. Despite the increased interest in probiotic dairy products, introducing bifidobacteria into the dairy food chain has proved to be complicated. However, survival of Bifidobacterium species is conditioned by strain of bacteria used, metabolic interactions with lactic acid bacteria (LAB), fermentation parameters, and the temperature of storage and preservation of the dairy products. Furthermore, fortification of dairy foods and whey beverages with bifidobacteria have ability to change physicochemical and rheological properties beyond economic value of dairy products. In summary, this review underscores the significance of bifidobacteria as probiotics in diverse fermented dairy foods and accentuates their positive impact on human health. By enhancing our comprehension of the beneficial repercussions associated with the consumption of bifidobacteria-rich products, we aim to encourage individuals to embrace these probiotics as a means of promoting holistic health.
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Affiliation(s)
- Rajashree Jena
- Department of Dairy Technology, School of Agricultural and Bioengineering, Centurion University of Technology and Management, Paralakhemundi, Odisha, 761211, India
| | - Prasanta Kumar Choudhury
- Department of Dairy Technology, School of Agricultural and Bioengineering, Centurion University of Technology and Management, Paralakhemundi, Odisha, 761211, India.
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3
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Wang K, Hu S. The synergistic effects of polyphenols and intestinal microbiota on osteoporosis. Front Immunol 2023; 14:1285621. [PMID: 37936705 PMCID: PMC10626506 DOI: 10.3389/fimmu.2023.1285621] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/30/2023] [Accepted: 10/11/2023] [Indexed: 11/09/2023] Open
Abstract
Osteoporosis is a common metabolic disease in middle-aged and elderly people. It is characterized by a reduction in bone mass, compromised bone microstructure, heightened bone fragility, and an increased susceptibility to fractures. The dynamic imbalance between osteoblast and osteoclast populations is a decisive factor in the occurrence of osteoporosis. With the increase in the elderly population in society, the incidence of osteoporosis, disability, and mortality have gradually increased. Polyphenols are a fascinating class of compounds that are found in both food and medicine and exhibit a variety of biological activities with significant health benefits. As a component of food, polyphenols not only provide color, flavor, and aroma but also act as potent antioxidants, protecting our cells from oxidative stress and reducing the risk of chronic disease. Moreover, these natural compounds exhibit anti-inflammatory properties, which aid in immune response regulation and potentially alleviate symptoms of diverse ailments. The gut microbiota can degrade polyphenols into more absorbable metabolites, thereby increasing their bioavailability. Polyphenols can also shape the gut microbiota and increase its abundance. Therefore, studying the synergistic effect between gut microbiota and polyphenols may help in the treatment and prevention of osteoporosis. By delving into how gut microbiota can enhance the bioavailability of polyphenols and how polyphenols can shape the gut microbiota and increase its abundance, this review offers valuable information and references for the treatment and prevention of osteoporosis.
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Affiliation(s)
- Keyu Wang
- The Orthopaedic Center, The Affiliated Wenling Hospital of Wenzhou Medical University (The First People’s Hospital of Wenling), Wenling, Zhejiang, China
- College of Bioscience and Biotechnology, Hunan Agricultural University, Changsha, Hunan, China
| | - Siwang Hu
- The Orthopaedic Center, The Affiliated Wenling Hospital of Wenzhou Medical University (The First People’s Hospital of Wenling), Wenling, Zhejiang, China
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Nie H, Li Y, Lu XL, Yan J, Liu XR, Yin Q. Prodigiosin derived from chromium-resistant Serratia sp. prevents inflammation and modulates gut microbiota homeostasis in DSS-induced colitis mice. Int Immunopharmacol 2023; 116:109800. [PMID: 36780827 DOI: 10.1016/j.intimp.2023.109800] [Citation(s) in RCA: 7] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/11/2022] [Revised: 01/21/2023] [Accepted: 01/25/2023] [Indexed: 02/13/2023]
Abstract
Prodigiosin (PG) is a secondary metabolite of microorganisms with anticancer, antimalarial, antibacterial and immunomodulatory effects. However, the modulatory effects on gut microbiome and intestinal immune microenvironment have never been explored in the ulcerative colitis (UC) mice model. In this study, 2.5% dextran sulfate sodium (DSS) induced UC mice model was constructed to investigate the effects of PG derived from a chromium-resistant Serratia sp. on the intestinal flora and inflammatory response. The results showed that prodigiosin administration attenuated the DSS-induced UC symptoms, including preventing the reduction of colonic length and DSS-induced mortality. Furthermore, prodigiosin ameliorated the DSS-induced gut microbiota community dysbiosis by restoring the abundance of Bacteroidota. At the genus level, the declined abundance of Bifidobacterium, Allobaculum and Akkermannia in UC mice was elevated by the treatment of PG. Pathological results by H&E staining showed that PG prevented the appearance of distortion and atrophy of crypt and neutrophil infiltration in a dose-dependent manner. RT-PCR revealed that the expression levels of the inflammatory factors IL-1β, IL-6 and IL-10 were significantly suppressed, and the expression of the intestinal tight junction protein Claudin-1, Occludin and ZO-1 were upregulted in PG-treated UC mice. Conclusively, our results revealed that prodigiosin effectively prevented inflammatory response and protected intestinal barrier integrity of DSS-induced colitis mice via modulating gut microbiota community structure, suppressing inflammatory factors' expression, and accelerating the expression of intestinal tight junction protein. These results will provide new insights into the interaction of prodigiosin with intestinal microbiota homeostasis and its application in clinical against inflammatory bowel disease.
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Affiliation(s)
- Hao Nie
- Department of Health Laboratory Technology, School of Public Health, Chongqing Medical University, No. 61 Daxuecheng Middle Road, Shapingba District, Chongqing 401334, PR China
| | - Yingli Li
- Department of Health Laboratory Technology, School of Public Health, Chongqing Medical University, No. 61 Daxuecheng Middle Road, Shapingba District, Chongqing 401334, PR China
| | - Xiao-Ling Lu
- Department of Health Laboratory Technology, School of Public Health, Chongqing Medical University, No. 61 Daxuecheng Middle Road, Shapingba District, Chongqing 401334, PR China
| | - Jing Yan
- Department of Health Laboratory Technology, School of Public Health, Chongqing Medical University, No. 61 Daxuecheng Middle Road, Shapingba District, Chongqing 401334, PR China
| | - Xiang-Ru Liu
- Department of Health Laboratory Technology, School of Public Health, Chongqing Medical University, No. 61 Daxuecheng Middle Road, Shapingba District, Chongqing 401334, PR China
| | - Qi Yin
- Department of Health Laboratory Technology, School of Public Health, Chongqing Medical University, No. 61 Daxuecheng Middle Road, Shapingba District, Chongqing 401334, PR China.
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Li J, Feng S, Yu L, Zhao J, Tian F, Chen W, Zhai Q. Capsular polysaccarides of probiotics and their immunomodulatory roles. FOOD SCIENCE AND HUMAN WELLNESS 2022. [DOI: 10.1016/j.fshw.2022.04.003] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
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6
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Li X, Tan X, Chen Q, Zhu X, Zhang J, Zhang J, Jia B. Prodigiosin of Serratia marcescens ZPG19 Alters the Gut Microbiota Composition of Kunming Mice. Molecules 2021; 26:molecules26082156. [PMID: 33918541 PMCID: PMC8069934 DOI: 10.3390/molecules26082156] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/07/2021] [Revised: 03/29/2021] [Accepted: 04/05/2021] [Indexed: 12/12/2022] Open
Abstract
Prodigiosin is a red pigment produced by Serratia marcescens with anticancer, antimalarial, and antibacterial effects. In this study, we extracted and identified a red pigment from a culture of S. marcescens strain ZPG19 and investigated its effect on the growth performance and intestinal microbiota of Kunming mice. High-performance liquid chromatography/mass spectrometry revealed that the pigment had a mass-to-charge ratio (m/z) of 324.2160, and thus it was identified as prodigiosin. To investigate the effect of prodigiosin on the intestinal microbiota, mice (n = 5) were administered 150 μg/kg/d prodigiosin (crude extract, 95% purity) via the drinking water for 18 days. Administration of prodigiosin did not cause toxicity in mice. High-throughput sequencing analysis revealed that prodigiosin altered the cecum microbiota abundance and diversity; the relative abundance of Desulfovibrio significantly decreased, whereas Lactobacillus reuteri significantly increased. This finding indicates that oral administration of prodigiosin has a beneficial effect on the intestinal microbiota of mice. As prodigiosin is non-toxic to mouse internal organs and improves the mouse intestinal microbiota, we suggest that it is a promising candidate drug to treat intestinal inflammation.
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Affiliation(s)
- Xue Li
- State Key Laboratory of Biobased Material and Green Papermaking, School of Bioengineering, Qilu University of Technology (Shandong Academy of Sciences), Jinan 250000, China; (X.L.); (X.T.); (Q.C.)
| | - Xinfeng Tan
- State Key Laboratory of Biobased Material and Green Papermaking, School of Bioengineering, Qilu University of Technology (Shandong Academy of Sciences), Jinan 250000, China; (X.L.); (X.T.); (Q.C.)
| | - Qingshuang Chen
- State Key Laboratory of Biobased Material and Green Papermaking, School of Bioengineering, Qilu University of Technology (Shandong Academy of Sciences), Jinan 250000, China; (X.L.); (X.T.); (Q.C.)
| | - Xiaoling Zhu
- Shandong Academy of Agricultural Sciences, Jinan 250000, China;
| | - Jing Zhang
- State Key Laboratory of Biobased Material and Green Papermaking, School of Bioengineering, Qilu University of Technology (Shandong Academy of Sciences), Jinan 250000, China; (X.L.); (X.T.); (Q.C.)
- Correspondence: (J.Z.); (J.Z.); (B.J.)
| | - Jie Zhang
- State Key Laboratory of Biobased Material and Green Papermaking, School of Bioengineering, Qilu University of Technology (Shandong Academy of Sciences), Jinan 250000, China; (X.L.); (X.T.); (Q.C.)
- Correspondence: (J.Z.); (J.Z.); (B.J.)
| | - Baolei Jia
- State Key Laboratory of Biobased Material and Green Papermaking, School of Bioengineering, Qilu University of Technology (Shandong Academy of Sciences), Jinan 250000, China; (X.L.); (X.T.); (Q.C.)
- Correspondence: (J.Z.); (J.Z.); (B.J.)
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7
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Wang Y, Xu L, Sun X, Wan X, Sun G, Jiang R, Li W, Tian Y, Liu X, Kang X. Characteristics of the fecal microbiota of high- and low-yield hens and effects of fecal microbiota transplantation on egg production performance. Res Vet Sci 2020; 129:164-173. [PMID: 32036124 DOI: 10.1016/j.rvsc.2020.01.020] [Citation(s) in RCA: 25] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/04/2019] [Revised: 01/25/2020] [Accepted: 01/29/2020] [Indexed: 01/06/2023]
Abstract
The microbiota that resides in the digestive tract plays pivotal role in maintaining intestinal environmental stability by promoting nutrition digestion and intestinal mucosal immunity. However, whether the intestinal microbiota in laying hens affects egg laying- performance is not known. In this study, 16S rDNA gene sequencing and fecal microbiota transplantation were used to determine the structure of the intestinal microbiota and the effect of the intestinal microbiota on egg production. The results revealed that Firmicutes were dominant in both the H (high egg laying rates) and L (low egg laying rates) groups, while Bacteroides, Actinobacteria and Proteobacteria were significantly enriched in the L group compared to the H group. The laying rates were weakly affected in H hens transplanted with the fecal microbiota from L hens, except for temporary fluctuation, while the egg laying rates were significantly increased in L hens transplanted with the fecal microbiota from H hens. Therefore, we concluded that the population structure of the intestinal microbiota varied between the H and L groups, and the intestinal microbiota of high-yield laying hens had significant effects on low-yield laying hens performance.
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Affiliation(s)
- Yanbin Wang
- College of Animal Science and Veterinary Medicine, Henan Agricultural University, Zhengzhou 450046, China.
| | - Laipeng Xu
- College of Animal Science and Veterinary Medicine, Henan Agricultural University, Zhengzhou 450046, China
| | - Xiangli Sun
- College of Animal Science and Veterinary Medicine, Henan Agricultural University, Zhengzhou 450046, China
| | - Xianhua Wan
- College of Animal Science and Veterinary Medicine, Henan Agricultural University, Zhengzhou 450046, China
| | - Guirong Sun
- College of Animal Science and Veterinary Medicine, Henan Agricultural University, Zhengzhou 450046, China
| | - Ruirui Jiang
- College of Animal Science and Veterinary Medicine, Henan Agricultural University, Zhengzhou 450046, China
| | - Wenting Li
- College of Animal Science and Veterinary Medicine, Henan Agricultural University, Zhengzhou 450046, China
| | - Yadong Tian
- College of Animal Science and Veterinary Medicine, Henan Agricultural University, Zhengzhou 450046, China
| | - Xiaojun Liu
- College of Animal Science and Veterinary Medicine, Henan Agricultural University, Zhengzhou 450046, China
| | - Xiangtao Kang
- College of Animal Science and Veterinary Medicine, Henan Agricultural University, Zhengzhou 450046, China.
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Xu Y, Cui Y, Yue F, Liu L, Shan Y, Liu B, Zhou Y, Lü X. Exopolysaccharides produced by lactic acid bacteria and Bifidobacteria: Structures, physiochemical functions and applications in the food industry. Food Hydrocoll 2019. [DOI: 10.1016/j.foodhyd.2019.03.032] [Citation(s) in RCA: 41] [Impact Index Per Article: 8.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
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9
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Schiavi E, Plattner S, Rodriguez-Perez N, Barcik W, Frei R, Ferstl R, Kurnik-Lucka M, Groeger D, Grant R, Roper J, Altmann F, van Sinderen D, Akdis CA, O'Mahony L. Exopolysaccharide from Bifidobacterium longum subsp. longum 35624™ modulates murine allergic airway responses. Benef Microbes 2018; 9:761-773. [PMID: 29726281 DOI: 10.3920/bm2017.0180] [Citation(s) in RCA: 29] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Abstract
Interactions between the host and the microbiota are thought to significantly influence immunological tolerance mechanisms at mucosal sites. We recently described that the loss of an exopolysaccharide (EPS) from Bifidobacterium longum 35624™ eliminated its protective effects in colitis and respiratory allergy murine models. Our goal was to investigate the immune response to purified EPS from B. longum 35624, determine if it has protective effects within the lung and identify the protective mechanisms. Isolated EPS from B. longum 35624 cultures was used for in vitro, ex vivo and in vivo studies. Human monocyte-derived dendritic cells (MDDCs) were used to investigate in vitro immunological responses to EPS. Cytokine secretion, expression of surface markers and signalling pathways were examined. The ovalbumin (OVA) respiratory allergy murine model was used to evaluate the in vivo immunomodulatory potential of EPS. In addition, interleukin (IL)-10 knockout (KO) mice and anti-Toll-like receptor (TLR)-2 blocking antibody were used to examine the underlying protective mechanisms of intranasal EPS administration. Stimulation of human MDDCs with EPS resulted in IL-10 secretion, but not proinflammatory cytokines. IL-10 secretion was TLR-2-dependent. Eosinophil recruitment to the lungs was significantly decreased by EPS intranasal exposure, which was associated with decreased expression of the Th2-associated markers C-C motif chemokine 11 (CCL11), C-C chemokine receptor type 3 (CCR3), IL-4 and IL-13. TLR-2-mediated IL-10 secretion was shown to be required for the reduction in eosinophils and Th2 cytokines. EPS-treatment reduced eosinophil recruitment within the lung in a respiratory inflammation mouse model, which is both TLR-2 and IL-10 mediated. EPS can be considered as a novel molecule potentially reducing the severity of chronic eosinophil-related airway disorders.
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Affiliation(s)
- E Schiavi
- 1 Swiss Institute of Allergy and Asthma Research (SIAF), University of Zürich, Obere Strasse 22, 7270 Davos, Switzerland.,2 Alimentary Health Pharma Davos, Obere Strasse 22, 7270 Davos, Switzerland
| | - S Plattner
- 3 Alimentary Health, Building 4400, Cork Airport Business Park, Kinsale Road Cork, Ireland
| | - N Rodriguez-Perez
- 1 Swiss Institute of Allergy and Asthma Research (SIAF), University of Zürich, Obere Strasse 22, 7270 Davos, Switzerland
| | - W Barcik
- 1 Swiss Institute of Allergy and Asthma Research (SIAF), University of Zürich, Obere Strasse 22, 7270 Davos, Switzerland
| | - R Frei
- 1 Swiss Institute of Allergy and Asthma Research (SIAF), University of Zürich, Obere Strasse 22, 7270 Davos, Switzerland.,4 Christine Kühne-Center for Allergy Research and Education (CK-CARE), Herman-Burchard-Strasse 1, 7265 Davos, Switzerland
| | - R Ferstl
- 1 Swiss Institute of Allergy and Asthma Research (SIAF), University of Zürich, Obere Strasse 22, 7270 Davos, Switzerland.,4 Christine Kühne-Center for Allergy Research and Education (CK-CARE), Herman-Burchard-Strasse 1, 7265 Davos, Switzerland
| | - M Kurnik-Lucka
- 5 Department of Pathophysiology, Jagiellonian University Medical College, ul. św. Anny 12, 31-008 Kraków, Poland
| | - D Groeger
- 2 Alimentary Health Pharma Davos, Obere Strasse 22, 7270 Davos, Switzerland
| | - R Grant
- 2 Alimentary Health Pharma Davos, Obere Strasse 22, 7270 Davos, Switzerland
| | - J Roper
- 3 Alimentary Health, Building 4400, Cork Airport Business Park, Kinsale Road Cork, Ireland
| | - F Altmann
- 6 BOKU, Gregor-Mendel-Straße 33, 1180 Vienna, Austria
| | - D van Sinderen
- 7 APC Microbiome Institute and School of Microbiology, University College Cork, Western Road, 1234 AB Cork, Ireland
| | - C A Akdis
- 1 Swiss Institute of Allergy and Asthma Research (SIAF), University of Zürich, Obere Strasse 22, 7270 Davos, Switzerland.,4 Christine Kühne-Center for Allergy Research and Education (CK-CARE), Herman-Burchard-Strasse 1, 7265 Davos, Switzerland
| | - L O'Mahony
- 1 Swiss Institute of Allergy and Asthma Research (SIAF), University of Zürich, Obere Strasse 22, 7270 Davos, Switzerland
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Technological potential of Bifidobacterium aesculapii strains for fermented soymilk production. Lebensm Wiss Technol 2018. [DOI: 10.1016/j.lwt.2017.11.048] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/30/2022]
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Wang Y, Guo Y, Chen H, Wei H, Wan C. Potential of Lactobacillus plantarum ZDY2013 and Bifidobacterium bifidum WBIN03 in relieving colitis by gut microbiota, immune, and anti-oxidative stress. Can J Microbiol 2018; 64:327-337. [PMID: 29401402 DOI: 10.1139/cjm-2017-0716] [Citation(s) in RCA: 44] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
Ulcerative colitis (UC) is an inflammatory bowel disease that is difficult to cure, with rising incidence in recent decades. Probiotics have become a new strategy for UC treatment. In this study, we chose 2 new multisource probiotics, Lactobacillus plantarum ZDY2013 from acid beans and Bifidobacterium bifidum WBIN03 from infant feces, and a mixture of both, to investigate the anti-inflammatory and antioxidant effect on H2O2-induced oxidative damage in a HT-29 cell model and dextran sodium sulfate (DSS)-induced UC in mice. Compared with the model group, the general relative indices results showed L. plantarum ZDY2013 and B. bifidum WBIN03 have a significant effect on DSS-induced UC in mice, by downregulating the pro-inflammatory cytokines (e.g., TNF-α) and upregulating antioxidant factors (e.g., SOD1, SOD2, GPX2) at the transcriptional level. By means of high-throughput sequencing (16S V3-V4) and systematical bioinformatics analyses, we found that colitis may be associated with the changes in intestinal flora, especially Firmicutes and Bacteroides. Administration of L. plantarum ZDY2013 increased the abundance of Lactobacillus animalis, whereas B. bifidum WBIN03 increased the abundance of Lachnospiraceae bacterium COE1. Our results revealed that a supplement of L. plantarum ZDY2013 and B. bifidum WBIN03 remit UC through modification of gut microbiota to regulate oxidative stress and inflammatory mediators.
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Affiliation(s)
- Yuanyuan Wang
- a State Key Laboratory of Food Science and Technology, Nanchang University, Nanchang 330047, People's Republic of China
| | - Yilin Guo
- a State Key Laboratory of Food Science and Technology, Nanchang University, Nanchang 330047, People's Republic of China
| | - Hui Chen
- a State Key Laboratory of Food Science and Technology, Nanchang University, Nanchang 330047, People's Republic of China
| | - Hua Wei
- b Sino-German Joint Research Institute, Nanchang University, Nanchang 330047, People's Republic of China
| | - Cuixiang Wan
- b Sino-German Joint Research Institute, Nanchang University, Nanchang 330047, People's Republic of China
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12
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Jiang M, Deng K, Jiang C, Fu M, Guo C, Wang X, Wang X, Meng F, Yang S, Deng K, Chen T, Xin H. Evaluation of the Antioxidative, Antibacterial, and Anti-Inflammatory Effects of the Aloe Fermentation Supernatant Containing Lactobacillus plantarum HM218749.1. Mediators Inflamm 2016; 2016:2945650. [PMID: 27493450 PMCID: PMC4967468 DOI: 10.1155/2016/2945650] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/12/2016] [Revised: 05/17/2016] [Accepted: 05/30/2016] [Indexed: 12/23/2022] Open
Abstract
Little work is done to develop Aloe vera (AV) using probiotics. To explore the potential benefits, the antioxidant effects and the antibacterial effects on foodborne pathogens of Aloe fermentation supernatant were evaluated in vitro. Our results indicated that the Aloe fermentation supernatant fermented by Lactobacillus plantarum HM218749.1 had very strong scavenging capacities of the DPPH (86%), O2 (•-) (85%), (•)OH (76%), and Fe(2+) chelation (82%) and reducing powers (242.5 mg/L), and the inhibition zones for Salmonella typhimurium, Salmonella enteritidis, Shigella flexneri, Escherichia coli, Listeria monocytogenes, S. dysenteriae 301, Staphylococcus aureus Cowan1, and Propionibacterium acnes were 16, 15, 19, 20, 21, 20, and 27 mm. Moreover, the low concentration of Aloe fermentation supernatant had significantly reduced the production of IL-1β, TNF-α, and IL-6 in both mRNA and protein levels (P < 0.01). Therefore, the Aloe fermentation supernatant can be used as functional beverage or cosmetic ingredients to guard human intestinal health, delaying senescence, and prevent chronic diseases.
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Affiliation(s)
- Meixiu Jiang
- Institute of Translational Medicine, Nanchang University, Nanchang, Jiangxi 330031, China
| | - Kan Deng
- Institute of Translational Medicine, Nanchang University, Nanchang, Jiangxi 330031, China
| | | | - Mingui Fu
- Department of Basic Medical Science, School of Medicine, University of Missouri Kansas City, Kansas City, MO 64108, USA
| | - Chunlan Guo
- College of Forestry, Jiangxi Agriculture University, Nanchang 330045, China
| | - Xiaolei Wang
- Institute of Translational Medicine, Nanchang University, Nanchang, Jiangxi 330031, China
| | - Xin Wang
- Institute of Translational Medicine, Nanchang University, Nanchang, Jiangxi 330031, China
| | - Fanjing Meng
- Institute of Translational Medicine, Nanchang University, Nanchang, Jiangxi 330031, China
| | - Shaoguo Yang
- Institute of Translational Medicine, Nanchang University, Nanchang, Jiangxi 330031, China
| | - Keyu Deng
- Institute of Translational Medicine, Nanchang University, Nanchang, Jiangxi 330031, China
| | - Tingtao Chen
- Institute of Translational Medicine, Nanchang University, Nanchang, Jiangxi 330031, China
| | - Hongbo Xin
- Institute of Translational Medicine, Nanchang University, Nanchang, Jiangxi 330031, China
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Zhang F, Jiang M, Wan C, Chen X, Chen X, Tao X, Shah NP, Wei H. Screening probiotic strains for safety: Evaluation of virulence and antimicrobial susceptibility of enterococci from healthy Chinese infants. J Dairy Sci 2016; 99:4282-4290. [PMID: 26995141 DOI: 10.3168/jds.2015-10690] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/27/2015] [Accepted: 01/31/2016] [Indexed: 12/18/2022]
Abstract
The aim of this study was to evaluate the safety of enterococci isolated from Chinese infants and screen out potential probiotic candidates. One hundred eight strains were isolated from feces of 34 healthy infants, and 38 strains of Enterococcus spp. were categorized as follows: E. faecalis (22), E. faecium (10), E. hirae (3), E. durans (2), and E. casseliflavus (1). Of these, 72.7% of E. faecalis came from infants delivered by cesarean and 62.5% of E. faecium from infants delivered vaginally. For safety evaluation of strains, we determined presence of virulence genes; production of hemolysin, gelatinase, and biofilm; and antimicrobial susceptibility of enterococci. Six out of 14 virulence genes were detected with a distribution of gelE (26.3%), cylA (39.4%), esp (15.8%), efaA (63.2%), asa1 (50.0%), and ace (50.0%). In phenotype analysis, 36.8% of the strains exhibited positive hemolytic activity and 17.5% were positive for production of gelatinase. Results of antimicrobial susceptibility showed that different percentages of the strains were resistant to ciprofloxacin (5.2%), vancomycin (7.8%), rifampicin (10.5%), erythromycin (52.6%), and gentamycin (52.6%); remarkably, none of the strains were resistant to ampicillin or chloramphenicol. In total, 10 strains, including 6 E. faecium, which are free of virulence determinants and sensitive to common antimicrobial agents (e.g., ampicillin and vancomycin), were further assessed for their probiotic properties. All strains survived well in simulated gastric fluid and intestinal tract, with maximum reductions of 0.600 and 0.887 log cfu/mL, respectively. Six strains of E. faecium could resist 0.3 to 1.0% bile salt, of which E. faecium WEFA23 presented the highest growth (75.06%) at 1.0% bile salt. All strains showed bile salt hydrolase activity on glycodeoxycholic acid, but only 3 of E. faecium showed activity on taurodeoxycholic acid. These results deliver useful information on the safety of enterococci in infants in China, and provide a protocol to screen probiotics for absence of virulence and antimicrobial susceptibility of enterococci.
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Affiliation(s)
- Fen Zhang
- School of Life Sciences, Nanchang University, Nanchang 330031, P. R. China
| | - Meiling Jiang
- School of Life Sciences, Nanchang University, Nanchang 330031, P. R. China
| | - Cuixiang Wan
- School of Life Sciences, Nanchang University, Nanchang 330031, P. R. China
| | - Xiaoyan Chen
- Maternal and Child Health Hospital of Jiangxi province, Nanchang 330006, P. R. China
| | - Xiaoyong Chen
- Maternal and Child Health Hospital of Jiangxi province, Nanchang 330006, P. R. China
| | - Xueying Tao
- School of Life Sciences, Nanchang University, Nanchang 330031, P. R. China.
| | - Nagendra P Shah
- Food and Nutritional Science, School of Biological Science, The University of Hong Kong, Pokfulam Road, Hong Kong, P. R. China
| | - Hua Wei
- School of Life Sciences, Nanchang University, Nanchang 330031, P. R. China
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Wang BG, Xu HB, Xu F, Zeng ZL, Wei H. Efficacy of oral Bifidobacterium bifidum ATCC 29521 on microflora and antioxidant in mice. Can J Microbiol 2016; 62:249-62. [DOI: 10.1139/cjm-2015-0685] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Abstract
This study aimed to examine whether Bifidobacterium bifidum ATCC 29521, a species of colonic microflora in humans, is involved in the intestinal tract of mice. This study was also conducted to determine the antioxidant activity of this species by evaluating different microbial populations and reactive oxygen species isolated from feces and intestinal contents for 28 days of oral administration. Microbial diversities were assessed through bacterial culture techniques, PCR–DGGE, and real-time PCR. This study showed that the intake of B. bifidum ATCC 29521 significantly (p < 0.05) improved the ecosystem of the intestinal tract of BALB/c mice by increasing the amount of probiotics (Lactobacillus intestinalis and Lactobacillus crispatus) and by reducing unwanted bacterial populations (Enterobacter, Escherichia coli). Antioxidative activities of incubated cell-free extracts were evaluated through various assays, including the scavenging ability of DPPH radical (64.5% and 67.54% (p < 0.05), respectively, at 21 days in nutrients and 28 days in MRS broth), superoxide anion, and hydroxyl radical (85% and 61.5% (p < 0.05), respectively, at intestinal contents in nutrients and 21 days in MRS broth). Total reducing power (231.5 μmol/L (p < 0.05), 14 days in MRS broth) and mRNA level of genes related to oxidative stress were also determined. Results indicated that B. bifidum ATCC 29521 elicits a beneficial effect on murine gut microbiota and antioxidant activities compared with the control samples. This species can be considered as a potential bioresource antioxidant to promote health. Bifidobacterium bifidum ATCC 29521 may also be used as a promising material in microbiological and food applications.
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Affiliation(s)
- Bao-gui Wang
- State Key Laboratory of Food Science and Engineering, Nanchang University, Nanchang, Jiangxi 330047, People’s Republic of China
| | - Hai-bo Xu
- Tianjin Key Laboratory of Exercise Physiology and Sports Medicine, Department of Health and Exercise Science, Tianjin University of Sport, Tianjin 300381, People’s Republic of China
| | - Feng Xu
- State Key Laboratory of Food Science and Engineering, Nanchang University, Nanchang, Jiangxi 330047, People’s Republic of China
| | - Zhe-ling Zeng
- State Key Laboratory of Food Science and Engineering, Nanchang University, Nanchang, Jiangxi 330047, People’s Republic of China
| | - Hua Wei
- State Key Laboratory of Food Science and Engineering, Nanchang University, Nanchang, Jiangxi 330047, People’s Republic of China
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Jiang M, Zhang F, Wan C, Xiong Y, Shah NP, Wei H, Tao X. Evaluation of probiotic properties of Lactobacillus plantarum WLPL04 isolated from human breast milk. J Dairy Sci 2016; 99:1736-1746. [PMID: 26805974 DOI: 10.3168/jds.2015-10434] [Citation(s) in RCA: 69] [Impact Index Per Article: 8.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/23/2015] [Accepted: 11/15/2015] [Indexed: 12/29/2022]
Abstract
Lactobacillus plantarum WLPL04, a specific strain isolated from human breast milk, was investigated for its survival capacity (acid and bile salt tolerance, survival in simulated gastrointestinal tract, inhibition of pathogens, antibiotic susceptibility, yield of exopolysaccharides) and probiotic properties (antiadhesion of pathogens, protection from harmful effect of sodium dodecyl sulfate, and antiinflammatory stress on Caco-2 cells). The results showed that Lb. plantarum WLPL04 had broad-spectrum activity against gram-positive strains (Listeria monocytogenes CMCC54007, Bacillus cereus ATCC14579, and Staphylococcus aureus CMCC26003) and gram-negative strains (Pseudomonas aeruginosa MCC10104, Shigella sonnei ATCC25931, Enterobacter sakazakii ATCC29544, Salmonella typhimurium ATCC13311, and Escherichia coli O157:H7). Antibiotic susceptibility tests showed that Lb. plantarum WLPL04 was susceptible to 8 of 14 antibiotics (e.g., erythromycin and nitrofurantoin) and resistant to 6 of 14 antibiotics (e.g., kanamycin and bacitracin). Lactobacillus plantarum WLPL04 was able to survive at pH 2.5 for 3h and at 0.45% bile salt for 12h, suggesting that it can survive well in the gastrointestinal tract. In addition, the exopolysaccharide yield of Lb. plantarum WLPL04 reached 426.73 ± 65.56 mg/L at 24h. With strategies of competition, inhibition, and displacement, Lb. plantarum WLPL04 reduced the adhesion of E. coli O157:H7 (35.51%), Sal. typhimurium ATCC 13311 (8.10%), and Staph. aureus CMCC 26003 (40.30%) on Caco-2 cells by competition, and subsequently by 59.80, 62.50, and 42.60%, respectively, for the 3 pathogens through inhibition, and by 75.23, 39.97, and 52.88%, respectively, through displacement. Lactobacillus plantarum WLPL04 attenuated the acute stress induced by sodium dodecyl sulfate on Caco-2 cells and significantly inhibited the expression of inflammatory cytokines (IL-6, IL-8 and tumor necrosis factor-α) on Caco-2 cells but increased IL-10 expression in vitro compared with the Salmonella-treated group. In summary, Lb. plantarum WLPL04 from breast milk could be considered as a probiotic candidate for dairy products to promote human health.
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Affiliation(s)
- Meiling Jiang
- School of Life Sciences, Nanchang University, Nanchang 330031, P. R. China
| | - Fen Zhang
- School of Life Sciences, Nanchang University, Nanchang 330031, P. R. China
| | - Cuixiang Wan
- State Key Laboratory of Food Science and Technology, Nanchang University, Nanchang 330047, P. R. China
| | - Yonghua Xiong
- State Key Laboratory of Food Science and Technology, Nanchang University, Nanchang 330047, P. R. China
| | - Nagendra P Shah
- Food and Nutritional Science, School of Biological Science, University of Hong Kong, Pokfulam Road, Hong Kong, P. R. China
| | - Hua Wei
- School of Life Sciences, Nanchang University, Nanchang 330031, P. R. China; State Key Laboratory of Food Science and Technology, Nanchang University, Nanchang 330047, P. R. China
| | - Xueying Tao
- School of Life Sciences, Nanchang University, Nanchang 330031, P. R. China; State Key Laboratory of Food Science and Technology, Nanchang University, Nanchang 330047, P. R. China.
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16
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Kuang H, Yang L, Shah NP, Aguilar ZP, Wang L, Xu H, Wei H. Synergistic in vitro and in vivo antimicrobial effect of a mixture of ZnO nanoparticles and Lactobacillus fermentation liquor. Appl Microbiol Biotechnol 2015; 100:3757-66. [PMID: 26695158 DOI: 10.1007/s00253-015-7221-x] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/29/2015] [Revised: 11/25/2015] [Accepted: 11/28/2015] [Indexed: 10/22/2022]
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17
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Huang R, Tao X, Wan C, Li S, Xu H, Xu F, Shah NP, Wei H. In vitro probiotic characteristics of Lactobacillus plantarum ZDY 2013 and its modulatory effect on gut microbiota of mice. J Dairy Sci 2015; 98:5850-61. [DOI: 10.3168/jds.2014-9153] [Citation(s) in RCA: 49] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/25/2014] [Accepted: 05/05/2015] [Indexed: 11/19/2022]
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Perez-Chab ML, Cerda-Tapi A, Diaz-Vela J, Delgadillo PC, Diaz MM, Aleman G. Physiological Effects of Agroindustrial Co-Products: Cactus (Opuntia ficus) Pear Peel Flour and Stripe Apple (Malus domestica) Marc Flour on Wistar Rats (Rattus norvegicus). ACTA ACUST UNITED AC 2015. [DOI: 10.3923/pjn.2015.346.352] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
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Li S, Huang R, Shah NP, Tao X, Xiong Y, Wei H. Antioxidant and antibacterial activities of exopolysaccharides from Bifidobacterium bifidum WBIN03 and Lactobacillus plantarum R315. J Dairy Sci 2014; 97:7334-43. [PMID: 25282420 DOI: 10.3168/jds.2014-7912] [Citation(s) in RCA: 111] [Impact Index Per Article: 11.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/07/2014] [Accepted: 07/22/2014] [Indexed: 01/18/2023]
Abstract
The objective of this study was to investigate the antioxidant and antibacterial activities of exopolysaccharide (EPS) from Bifidobacterium bifidum WBIN03 (B-EPS) and Lactobacillus plantarum R315 (L-EPS). The 1,1-diphenyl-2-picrylhydrazyl (DPPH)-radical scavenging, hydroxyl radical-scavenging, and superoxide radical-scavenging abilities were measured to evaluate antioxidant activity. Inhibition of erythrocyte hemolysis and lipid peroxidation was also measured. Both B-EPS and L-EPS had strong scavenging ability against DPPH and superoxide radicals at high concentration. The inhibitory effect of B-EPS on erythrocyte hemolysis was stronger than that of L-EPS in a concentration range from 0.30 to 1.00 mg/mL, whereas the hydroxyl scavenging ability of L-EPS (39.15 ± 0.58%) was significantly higher than that of 0.15 mg/mL ascorbic acid (24.33 ± 1.17%) and B-EPS (17.89 ± 3.30%) at 0.10 mg/mL. The inhibition of lipid peroxidation of 0.50 mg/mL B-EPS and L-EPS was 13.48 ± 1.74% and 12.43 ± 0.51%, respectively, values lower than that of ascorbic acid at the same concentration (23.20 ± 1.41%). Furthermore, all these abilities were enhanced in a concentration-dependent manner. Agar diffusion assay showed that both EPS exhibited antibacterial activities against tested pathogens such as Cronobacter sakazakii, Escherichia coli, Listeria monocytogenes, Staphyloccocus aureus, Candida albicans, Bacillus cereus, Salmonella typhimurium, and Shigella sonnei at 300 μg/mL. In conclusion, both EPS have antimicrobial and antioxidant activities and could have applications in the food industry.
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Affiliation(s)
- Shengjie Li
- State Key Laboratory of Food Science and Technology, Nanchang University, Nanchang 330047, P. R. China; Jiangxi-OAI Joint Research Institute, Nanchang University, Nanchang 330047, P. R. China
| | - Renhui Huang
- State Key Laboratory of Food Science and Technology, Nanchang University, Nanchang 330047, P. R. China
| | - Nagendra P Shah
- Food and Nutritional Science, School of Biological Science, The University of Hong Kong, Pokfulam Road, Hong Kong, China.
| | - Xueying Tao
- State Key Laboratory of Food Science and Technology, Nanchang University, Nanchang 330047, P. R. China; Jiangxi-OAI Joint Research Institute, Nanchang University, Nanchang 330047, P. R. China
| | - Yonghua Xiong
- State Key Laboratory of Food Science and Technology, Nanchang University, Nanchang 330047, P. R. China; Jiangxi-OAI Joint Research Institute, Nanchang University, Nanchang 330047, P. R. China
| | - Hua Wei
- State Key Laboratory of Food Science and Technology, Nanchang University, Nanchang 330047, P. R. China; Jiangxi-OAI Joint Research Institute, Nanchang University, Nanchang 330047, P. R. China.
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Pechar R, Rada V, Parafati L, Musilova S, Bunesova V, Vlkova E, Killer J, Mrazek J, Kmet V, Svejstil R. Mupirocin-mucin agar for selective enumeration of Bifidobacterium bifidum. Int J Food Microbiol 2014; 191:32-5. [PMID: 25217723 DOI: 10.1016/j.ijfoodmicro.2014.08.032] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/15/2014] [Revised: 07/29/2014] [Accepted: 08/23/2014] [Indexed: 10/24/2022]
Abstract
Bifidobacterium bifidum is a bacterial species exclusively found in the human intestinal tract. This species is becoming increasingly popular as a probiotic organism added to lyophilized products. In this study, porcine mucin was used as the sole carbon source for the selective enumeration of B. bifidum in probiotic food additives. Thirty-six bifidobacterial strains were cultivated in broth with mucin. Only 13 strains of B. bifidum utilized the mucin to produce acids. B. bifidum was selectively enumerated in eight probiotic food supplements using agar (MM agar) containing mupirocin (100 mg/L) and mucin (20 g/L) as the sole carbon source. MM agar was fully selective if the B. bifidum species was presented together with Bifidobacterium animalis subsp. lactis, Bifidobacterium breve, and Bifidobacterium longum subsp. longum species and with lactic acid bacteria (lactobacilli, streptococci). Isolated strains of B. bifidum were identified using biochemical, PCR, MALDI-TOF procedures and 16S rRNA gene sequencing. The novel selective medium was also suitable for the isolation of B. bifidum strains from human fecal samples.
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Affiliation(s)
- Radko Pechar
- Department of Microbiology, Nutrition and Dietetics, Faculty of Agrobiology, Food and Natural Resources, Czech University of Life Sciences, Kamycka 129, Prague 6 165 21, Czech Republic
| | - Vojtech Rada
- Department of Microbiology, Nutrition and Dietetics, Faculty of Agrobiology, Food and Natural Resources, Czech University of Life Sciences, Kamycka 129, Prague 6 165 21, Czech Republic.
| | - Lucia Parafati
- Department of Agri-food and Environmental Systems Management, University of Catania, Via S. Sofia 100, 95123 Catania, Italy
| | - Sarka Musilova
- Department of Microbiology, Nutrition and Dietetics, Faculty of Agrobiology, Food and Natural Resources, Czech University of Life Sciences, Kamycka 129, Prague 6 165 21, Czech Republic
| | - Vera Bunesova
- Department of Microbiology, Nutrition and Dietetics, Faculty of Agrobiology, Food and Natural Resources, Czech University of Life Sciences, Kamycka 129, Prague 6 165 21, Czech Republic
| | - Eva Vlkova
- Department of Microbiology, Nutrition and Dietetics, Faculty of Agrobiology, Food and Natural Resources, Czech University of Life Sciences, Kamycka 129, Prague 6 165 21, Czech Republic
| | - Jiri Killer
- Department of Microbiology, Nutrition and Dietetics, Faculty of Agrobiology, Food and Natural Resources, Czech University of Life Sciences, Kamycka 129, Prague 6 165 21, Czech Republic; Institute of Animal Physiology and Genetics v.v.i., Academy of Sciences of the Czech Republic, Vídenská 1083, Prague 4 142 20, Czech Republic
| | - Jakub Mrazek
- Institute of Animal Physiology and Genetics v.v.i., Academy of Sciences of the Czech Republic, Vídenská 1083, Prague 4 142 20, Czech Republic
| | - Vladimir Kmet
- Institute of Animal Physiology, Slovak Academy of Sciences, Soltesovej 4-6, 040 01 Kosice, Slovakia
| | - Roman Svejstil
- Department of Microbiology, Nutrition and Dietetics, Faculty of Agrobiology, Food and Natural Resources, Czech University of Life Sciences, Kamycka 129, Prague 6 165 21, Czech Republic
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Chen T, Wang M, Li S, Wu Q, Wei H. Molecular identification of microbial community in surface and undersurface douchi during postfermentation. J Food Sci 2014; 79:M653-8. [PMID: 24621312 DOI: 10.1111/1750-3841.12417] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/08/2013] [Accepted: 10/23/2013] [Indexed: 12/01/2022]
Abstract
To find the reason for fermentation failure of surface Douchi during postfermentation, the microbial communities in undersurface and surface samples were investigated using cell counting method and denaturing gradient gel electrophoresis (DGGE). The results showed that the microbial biomass in surface Douchi was obviously different from that in undersurface Douchi even sampled from the same fermentation tanks, and a 10- to 100-fold reduction of microbial cell counts in undersurface had been observed. The bacterial DGGE profile and principal component analysis (PCA) results indicated that only Lactococcus lacts subsp. lactis and Bacillus thermoamylovorans were detected from surface Douchi, while Lactococcus lacts subsp. lactis, Staphylococcus lentus and 2 uncultured strains occupied the dominant positions in undersurface Douchi; when amplified using Bacillus-specific primers, Bacillus thermoamylovorans, Bacillus subtilis, and Enterobacter sp. were found in undersurface Douchi, while only Bacillus thermoamylovorans were detected from surface Douchi; compared to the bacteria and Bacillus, the DGGE profiles and PCA plot of fungi indicated that the fungal community between surface and undersurface Douchi was similar and mainly composed by yeasts. In this study, we detected the microbial biomass and species in postfermentation stage of Douchi, and the various microbial diversity in undersurface and surface samples might be the cause of the fermentation failure in surface fermentation tanks.
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Affiliation(s)
- Tingtao Chen
- State Key Laboratory of Food Science and Technology, Nanchang, Jiangxi, 330047, China; Inst. of Translational Medicine, Nanchang Univ, Nanchang, Jiangxi, 332000, PR China
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