1
|
Mashayekhi-Sardoo H, Rezaee R, Riahi-Zanjani B, Karimi G. Alleviation of microcystin-leucine arginine -induced hepatotoxicity: An updated overview. Toxicon 2024; 243:107715. [PMID: 38636613 DOI: 10.1016/j.toxicon.2024.107715] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/15/2023] [Revised: 04/04/2024] [Accepted: 04/09/2024] [Indexed: 04/20/2024]
Abstract
OBJECTIVES Contamination of surface waters is a major health threat for all living creatures. Some types of blue-green algae that naturally occur in fresh water, are able to produce various toxins, like Microcystins (MCs). Microcystin-leucine arginine (MC-LR) produced by Microcystis aeruginosa is the most toxic and abundant isoforms of MCs, and it causes hepatotoxicity. The present article reviews preclinical experiments examined different treatments, including herbal derivatives, dietary supplements and drugs against MC-LR hepatotoxicity. METHODS We searched scientific databases Web of Science, Embase, Medline (PubMed), Scopus, and Google Scholar using relevant keywords to find suitable studies until November 2023. RESULTS MC-LR through Organic anion transporting polypeptide superfamily transporters (OATPs) penetrates and accumulates in hepatocytes, and it inhibits protein phosphatases (PP1 and PP2A). Consequently, MC-LR disturbs many signaling pathways and induces oxidative stress thus damages cellular macromolecules. Some protective agents, especially plants rich in flavonoids, and natural supplements, as well as chemoprotectants were shown to diminish MC-LR hepatotoxicity. CONCLUSION The reviewed agents through blocking the OATP transporters (nontoxic nostocyclopeptide-M1, captopril, and naringin), then inhibition of MC-LR uptake (naringin, rifampin, cyclosporin-A, silymarin and captopril), and finally at restoration of PPAse activity (silybin, quercetin, morin, naringin, rifampin, captopril, azo dyes) exert hepatoprotective effect against MC-LR.
Collapse
Affiliation(s)
- Habibeh Mashayekhi-Sardoo
- Bio Environmental Health Hazard Research Center, Jiroft University of Medical Sciences, Jiroft, Iran; Jiroft University of Medical Sciences, Jiroft, Iran.
| | - Ramin Rezaee
- Applied Biomedical Research Center, Mashhad University of Medical Sciences, Mashhad, Iran.
| | - Bamdad Riahi-Zanjani
- Medical Toxicology Research Center, Mashhad University of Medical Sciences, Mashhad, Iran.
| | - Gholamreza Karimi
- Pharmaceutical Research Center, Institute of Pharmaceutical Technology, Mashhad University of Medical Sciences, Mashhad, Iran; Department of Pharmacodynamics and Toxicology, School of Pharmacy, Mashhad University of Medical Sciences, Mashhad, Iran.
| |
Collapse
|
2
|
Luan N, Zuo J, Niu Q, Yan W, Hung TC, Liu H, Wu Q, Wang G, Deng P, Ma X, Qin J, Li G. Probiotic Lactobacillus rhamnosus alleviates the neurotoxicity of microcystin-LR in zebrafish (Danio rerio) through the gut-brain axis. THE SCIENCE OF THE TOTAL ENVIRONMENT 2024; 908:168058. [PMID: 37914124 DOI: 10.1016/j.scitotenv.2023.168058] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/12/2023] [Revised: 10/13/2023] [Accepted: 10/21/2023] [Indexed: 11/03/2023]
Abstract
Microcystin-LR (MCLR) is one of the most toxic cyanobacterial toxins and is harmful to the central nervous system of fish. Probiotic additives can improve neuroendocrine function in fish. Although both MCLR and probiotics aim at the nervous system, whether they interact with each other and the mechanisms remain unexplored. In the present study, 4-month-old zebrafish were exposed to 0, 2.2, and 22 μg/L of MCLR for 28 days with or without the probiotic L. rhamnosus. We found that MCLR exposure could inhibit the swimming speed of zebrafish, while the presence of L. rhamnosus mitigated this abnormality. To elucidate the mechanism of how L. rhamnosus alleviates MCLR-induced neurotoxicity, we examined the bioaccumulation of MCLR, changes in neurotransmitters, immune biochemical indicators, and hormone content of the hypothalamic-pituitary-interrenal (HPI) axis in zebrafish along the gut-brain axis. Our results showed L. rhamnosus could reverse the abnormal swimming behavior and eventually alleviate neurotoxicity in zebrafish by modulating intestinal and brain neural signaling, neuroinflammation, and HPI axis responses. This study provides implications for the application of probiotics in the aquaculture industry.
Collapse
Affiliation(s)
- Ning Luan
- College of Fisheries, Huazhong Agricultural University, Wuhan 430070, China
| | - Junli Zuo
- College of Fisheries, Huazhong Agricultural University, Wuhan 430070, China
| | - Qianping Niu
- College of Fisheries, Huazhong Agricultural University, Wuhan 430070, China
| | - Wei Yan
- Institute of Quality Standard and Testing Technology for Agro-Products, Hubei Academy of Agricultural Sciences, Hubei Key Laboratory of Nutritional Quality and Safety of Agro-products, Wuhan 430064, Hubei, China
| | - Tien-Chieh Hung
- Department of Biological and Agricultural Engineering, University of California-Davis, Davis, CA 95616, USA
| | - Haoling Liu
- College of Fisheries, Huazhong Agricultural University, Wuhan 430070, China
| | - Qin Wu
- Hubei Key Laboratory of Edible Wild Plants Conservation and Utilization, Huangshi Key Laboratory of Lake Biodiversity and Environmental Conservation, Hubei Normal University, Huangshi, Hubei Province 435002, China
| | - Guoao Wang
- College of Fisheries, Huazhong Agricultural University, Wuhan 430070, China
| | - Ping Deng
- Study and practical demonstratiministryon on regime shifts and optimization of ecosystem after ecological restoration project 'turning fishpond to wetland' in Chenhu Lake, Wuhan Academy of Agricultural Sciences, Wuhan 430056, China
| | - Xufa Ma
- College of Fisheries, Huazhong Agricultural University, Wuhan 430070, China
| | - Jianhui Qin
- College of Fisheries, Huazhong Agricultural University, Wuhan 430070, China
| | - Guangyu Li
- College of Fisheries, Huazhong Agricultural University, Wuhan 430070, China.
| |
Collapse
|
3
|
Ma T, Zhang J, Yang L, Zhang S, Long X, Zeng Q, Li Z, Ren X, Yang F. Reusable and Practical Biocomposite Based on Sphingopyxis sp. YF1 and Polyacrylonitrile-Based Carbon Fiber for the Efficient Bioremediation of Microcystin-LR-Contaminated Water. Toxins (Basel) 2023; 16:20. [PMID: 38251236 PMCID: PMC10819031 DOI: 10.3390/toxins16010020] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/20/2023] [Revised: 12/13/2023] [Accepted: 12/19/2023] [Indexed: 01/23/2024] Open
Abstract
Microbial degradation is a cost-effective and environmentally friendly method for removing microcystin-LR (MC-LR). However, the application of free bacteria has limitations due to low operational stability and difficulties in recovery. In a previous study, our group successfully isolated a highly efficient MC-LR-degrading bacterium, Sphingopyxis sp. YF1, from Taihu. To enhance its practical potential in addressing MC-LR-contaminated water pollution, a novel biological material named polyacrylonitrile-based carbon fiber @Sphingopyxis sp. YF1 (PAN-CF@YF1) was synthesized. The immobilization conditions of strain Sphingopyxis sp. YF1 on PAN-CF surfaces were optimized using Box-Behnken design and response surface methodology (RSM), which turned out to be an optimal pH of 7.6 for the culture medium, a ratio of 0.038 g of supporting materials per 100 mL of culture media, and an incubation time of 53.4 h. The resultant PAN-CF@YF1 showed a great degradation effect both for low and high concentrations of MC-LR and exhibited satisfactory cyclic stability (85.75% after six cycles). Moreover, the application of PAN-CF@YF1 in the bioreactors demonstrated effective and sustainable MC-LR removal, with a removal efficiency of 78.83% after three consecutive treatments. Therefore, PAN-CF@YF1 with high degradation activity, environmental compatibility, straightforward preparation, and recyclability shows significant application potential for the bioremediation of MC-LR-contaminated water bodies.
Collapse
Affiliation(s)
- Tian Ma
- Hunan Province Key Laboratory of Typical Environmental Pollution and Health Hazards, School of Public Health, University of South China, Hengyang 421001, China; (T.M.)
| | - Jiajia Zhang
- Hunan Provincial Key Laboratory of Clinical Epidemiology, Xiang Ya School of Public Health, Central South University, Changsha 410078, China
| | - Lili Yang
- Hunan Province Key Laboratory of Typical Environmental Pollution and Health Hazards, School of Public Health, University of South China, Hengyang 421001, China; (T.M.)
| | - Shengyu Zhang
- Hunan Province Key Laboratory of Typical Environmental Pollution and Health Hazards, School of Public Health, University of South China, Hengyang 421001, China; (T.M.)
| | - Xizi Long
- Hunan Province Key Laboratory of Typical Environmental Pollution and Health Hazards, School of Public Health, University of South China, Hengyang 421001, China; (T.M.)
| | - Qingyi Zeng
- School of Resources & Environment and Safety Engineering, University of South China, Hengyang 421001, China
| | - Zhongyu Li
- Institute of Pathogenic Biology, School of Nursing, Hengyang Medical College, Hunan Provincial Key Laboratory for Special Pathogens Prevention and Control, University of South China, Hengyang 421001, China
| | - Xiaoya Ren
- Hunan Province Key Laboratory of Typical Environmental Pollution and Health Hazards, School of Public Health, University of South China, Hengyang 421001, China; (T.M.)
| | - Fei Yang
- Hunan Province Key Laboratory of Typical Environmental Pollution and Health Hazards, School of Public Health, University of South China, Hengyang 421001, China; (T.M.)
- Hunan Provincial Key Laboratory of Clinical Epidemiology, Xiang Ya School of Public Health, Central South University, Changsha 410078, China
| |
Collapse
|
4
|
Xu W, Hu X, Li H, Tian X, Ouyang Z, Du Y, Chen J. Effects of Lactobacillus plantarum Ep-M17 on growth, immunity and intestinal microbiota of Penaeus vannamei under Microcystin-LR stress. AQUATIC TOXICOLOGY (AMSTERDAM, NETHERLANDS) 2023; 265:106763. [PMID: 37980848 DOI: 10.1016/j.aquatox.2023.106763] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/10/2023] [Revised: 10/19/2023] [Accepted: 11/08/2023] [Indexed: 11/21/2023]
Abstract
Microcystins (MCs) are biologically active cyclic heptapeptide compounds released by cyanobacteria in water bodies, and MC-LR is one of the most widespread and toxic isoforms. It frequently poses a serious threat to Penaeus vannamei aquaculture. Our previous study revealed that the supplementation of Lactobacillus plantarum Ep-M17 has a probiotic effect on P. vannamei health and whether Ep-M17 can alleviate the stressful effects of MC-LR on shrimp remains unclear. Therefore, in the present work, shrimp were fed MC-LR alone or combined with Ep-M17 for six weeks, and then evaluated the effects on histology, enzyme activity, gene expression, and intestinal flora. The results showed that MC-LR stress lead to slow growth and reduced survival rates in shrimp. However, feeding Ep-M17 significantly increased both the growth rate and survival rate. Meanwhile, MC-LR stress caused severe tissue damage in the hepatopancreas and intestines of shrimp, but Ep-M17 significantly reduced the toxic effects and protected the integrity of these tissues. Additionally, Ep-M17 significantly enhanced the activities of antioxidant enzymes and digestive enzymes, and induced higher expression of immune-related genes, thereby promoting the digestive and immune responses in shrimp. Furthermore, MC-LR stress disrupted the intestinal flora in shrimp intestines, while the use of Ep-M17 significantly increased the abundance of immune- and metabolism-related bacteria and inhibited the growth of pathogenic bacteria to maintain intestinal flora balance and intestinal health. In conclusion, our results indicate that Ep-M17 can reduce the toxic effect of MC-LR on shrimp and has a positive function in the prevention and control of shrimp diseases caused by MC-LR.
Collapse
Affiliation(s)
- Wenlong Xu
- State Key Laboratory for Managing Biotic and Chemical Threats to the Quality and Safety of Agro-products, Ningbo University, Ningbo 315211, China; Laboratory of Biochemistry and Molecular Biology, School of Marine Sciences, Ningbo University, Ningbo 315211, China; Key Laboratory of Aquacultural Biotechnology of Ministry of Education, Meishan Campus, Ningbo University, Ningbo, Zhejiang 315832, China
| | - Xiaoman Hu
- State Key Laboratory for Managing Biotic and Chemical Threats to the Quality and Safety of Agro-products, Ningbo University, Ningbo 315211, China; Laboratory of Biochemistry and Molecular Biology, School of Marine Sciences, Ningbo University, Ningbo 315211, China; Key Laboratory of Aquacultural Biotechnology of Ministry of Education, Meishan Campus, Ningbo University, Ningbo, Zhejiang 315832, China
| | - Hao Li
- State Key Laboratory for Managing Biotic and Chemical Threats to the Quality and Safety of Agro-products, Ningbo University, Ningbo 315211, China; Laboratory of Biochemistry and Molecular Biology, School of Marine Sciences, Ningbo University, Ningbo 315211, China; Key Laboratory of Aquacultural Biotechnology of Ministry of Education, Meishan Campus, Ningbo University, Ningbo, Zhejiang 315832, China
| | - Xiangrong Tian
- State Key Laboratory for Managing Biotic and Chemical Threats to the Quality and Safety of Agro-products, Ningbo University, Ningbo 315211, China; Laboratory of Biochemistry and Molecular Biology, School of Marine Sciences, Ningbo University, Ningbo 315211, China; Key Laboratory of Aquacultural Biotechnology of Ministry of Education, Meishan Campus, Ningbo University, Ningbo, Zhejiang 315832, China
| | - Zhihang Ouyang
- State Key Laboratory for Managing Biotic and Chemical Threats to the Quality and Safety of Agro-products, Ningbo University, Ningbo 315211, China; Laboratory of Biochemistry and Molecular Biology, School of Marine Sciences, Ningbo University, Ningbo 315211, China; Key Laboratory of Aquacultural Biotechnology of Ministry of Education, Meishan Campus, Ningbo University, Ningbo, Zhejiang 315832, China
| | - Yang Du
- State Key Laboratory for Managing Biotic and Chemical Threats to the Quality and Safety of Agro-products, Ningbo University, Ningbo 315211, China; Laboratory of Biochemistry and Molecular Biology, School of Marine Sciences, Ningbo University, Ningbo 315211, China; Key Laboratory of Aquacultural Biotechnology of Ministry of Education, Meishan Campus, Ningbo University, Ningbo, Zhejiang 315832, China.
| | - Jiong Chen
- State Key Laboratory for Managing Biotic and Chemical Threats to the Quality and Safety of Agro-products, Ningbo University, Ningbo 315211, China; Laboratory of Biochemistry and Molecular Biology, School of Marine Sciences, Ningbo University, Ningbo 315211, China; Key Laboratory of Aquacultural Biotechnology of Ministry of Education, Meishan Campus, Ningbo University, Ningbo, Zhejiang 315832, China.
| |
Collapse
|
5
|
Microcystin-Detoxifying Recombinant Saccharomyces cerevisiae Expressing the mlrA Gene from Sphingosinicella microcystinivorans B9. Microorganisms 2023; 11:microorganisms11030575. [PMID: 36985150 PMCID: PMC10058252 DOI: 10.3390/microorganisms11030575] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/27/2023] [Revised: 02/20/2023] [Accepted: 02/22/2023] [Indexed: 03/03/2023] Open
Abstract
Contamination of water by microcystins is a global problem. These potent hepatotoxins demand constant monitoring and control methods in potable water. Promising approaches to reduce contamination risks have focused on natural microcystin biodegradation led by enzymes encoded by the mlrABCD genes. The first enzyme of this system (mlrA) linearizes microcystin structure, reducing toxicity and stability. Heterologous expression of mlrA in different microorganisms may enhance its production and activity, promote additional knowledge on the enzyme, and support feasible applications. In this context, we intended to express the mlrA gene from Sphingosinicella microcystinivorans B9 in an industrial Saccharomyces cerevisiae strain as an innovative biological alternative to degrade microcystins. The mlrA gene was codon-optimized for expression in yeast, and either expressed from a plasmid or through chromosomal integration at the URA3 locus. Recombinant and wild yeasts were cultivated in medium contaminated with microcystins, and the toxin content was analyzed during growth. Whereas no difference in microcystins content was observed in cultivation with the chromosomally integrated strain, the yeast strain hosting the mlrA expression plasmid reduced 83% of toxins within 120 h of cultivation. Our results show microcystinase A expressed by industrial yeast strains as a viable option for practical applications in water treatment.
Collapse
|
6
|
Lad A, Breidenbach JD, Su RC, Murray J, Kuang R, Mascarenhas A, Najjar J, Patel S, Hegde P, Youssef M, Breuler J, Kleinhenz AL, Ault AP, Westrick JA, Modyanov NN, Kennedy DJ, Haller ST. As We Drink and Breathe: Adverse Health Effects of Microcystins and Other Harmful Algal Bloom Toxins in the Liver, Gut, Lungs and Beyond. Life (Basel) 2022; 12:life12030418. [PMID: 35330169 PMCID: PMC8950847 DOI: 10.3390/life12030418] [Citation(s) in RCA: 29] [Impact Index Per Article: 14.5] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/30/2022] [Revised: 03/03/2022] [Accepted: 03/08/2022] [Indexed: 12/19/2022] Open
Abstract
Freshwater harmful algal blooms (HABs) are increasing in number and severity worldwide. These HABs are chiefly composed of one or more species of cyanobacteria, also known as blue-green algae, such as Microcystis and Anabaena. Numerous HAB cyanobacterial species produce toxins (e.g., microcystin and anatoxin—collectively referred to as HAB toxins) that disrupt ecosystems, impact water and air quality, and deter recreation because they are harmful to both human and animal health. Exposure to these toxins can occur through ingestion, inhalation, or skin contact. Acute health effects of HAB toxins have been well documented and include symptoms such as nausea, vomiting, abdominal pain and diarrhea, headache, fever, and skin rashes. While these adverse effects typically increase with amount, duration, and frequency of exposure, susceptibility to HAB toxins may also be increased by the presence of comorbidities. The emerging science on potential long-term or chronic effects of HAB toxins with a particular emphasis on microcystins, especially in vulnerable populations such as those with pre-existing liver or gastrointestinal disease, is summarized herein. This review suggests additional research is needed to define at-risk populations who may be helped by preventative measures. Furthermore, studies are required to develop a mechanistic understanding of chronic, low-dose exposure to HAB toxins so that appropriate preventative, diagnostic, and therapeutic strategies can be created in a targeted fashion.
Collapse
Affiliation(s)
- Apurva Lad
- College of Medicine and Life Science, University of Toledo, Toledo, OH 43614, USA; (A.L.); (J.D.B.); (R.C.S.); (J.M.); (R.K.); (A.M.); (J.N.); (S.P.); (P.H.); (M.Y.); (J.B.); (A.L.K.); (N.N.M.)
| | - Joshua D. Breidenbach
- College of Medicine and Life Science, University of Toledo, Toledo, OH 43614, USA; (A.L.); (J.D.B.); (R.C.S.); (J.M.); (R.K.); (A.M.); (J.N.); (S.P.); (P.H.); (M.Y.); (J.B.); (A.L.K.); (N.N.M.)
| | - Robin C. Su
- College of Medicine and Life Science, University of Toledo, Toledo, OH 43614, USA; (A.L.); (J.D.B.); (R.C.S.); (J.M.); (R.K.); (A.M.); (J.N.); (S.P.); (P.H.); (M.Y.); (J.B.); (A.L.K.); (N.N.M.)
| | - Jordan Murray
- College of Medicine and Life Science, University of Toledo, Toledo, OH 43614, USA; (A.L.); (J.D.B.); (R.C.S.); (J.M.); (R.K.); (A.M.); (J.N.); (S.P.); (P.H.); (M.Y.); (J.B.); (A.L.K.); (N.N.M.)
| | - Rebecca Kuang
- College of Medicine and Life Science, University of Toledo, Toledo, OH 43614, USA; (A.L.); (J.D.B.); (R.C.S.); (J.M.); (R.K.); (A.M.); (J.N.); (S.P.); (P.H.); (M.Y.); (J.B.); (A.L.K.); (N.N.M.)
| | - Alison Mascarenhas
- College of Medicine and Life Science, University of Toledo, Toledo, OH 43614, USA; (A.L.); (J.D.B.); (R.C.S.); (J.M.); (R.K.); (A.M.); (J.N.); (S.P.); (P.H.); (M.Y.); (J.B.); (A.L.K.); (N.N.M.)
| | - John Najjar
- College of Medicine and Life Science, University of Toledo, Toledo, OH 43614, USA; (A.L.); (J.D.B.); (R.C.S.); (J.M.); (R.K.); (A.M.); (J.N.); (S.P.); (P.H.); (M.Y.); (J.B.); (A.L.K.); (N.N.M.)
| | - Shivani Patel
- College of Medicine and Life Science, University of Toledo, Toledo, OH 43614, USA; (A.L.); (J.D.B.); (R.C.S.); (J.M.); (R.K.); (A.M.); (J.N.); (S.P.); (P.H.); (M.Y.); (J.B.); (A.L.K.); (N.N.M.)
| | - Prajwal Hegde
- College of Medicine and Life Science, University of Toledo, Toledo, OH 43614, USA; (A.L.); (J.D.B.); (R.C.S.); (J.M.); (R.K.); (A.M.); (J.N.); (S.P.); (P.H.); (M.Y.); (J.B.); (A.L.K.); (N.N.M.)
| | - Mirella Youssef
- College of Medicine and Life Science, University of Toledo, Toledo, OH 43614, USA; (A.L.); (J.D.B.); (R.C.S.); (J.M.); (R.K.); (A.M.); (J.N.); (S.P.); (P.H.); (M.Y.); (J.B.); (A.L.K.); (N.N.M.)
| | - Jason Breuler
- College of Medicine and Life Science, University of Toledo, Toledo, OH 43614, USA; (A.L.); (J.D.B.); (R.C.S.); (J.M.); (R.K.); (A.M.); (J.N.); (S.P.); (P.H.); (M.Y.); (J.B.); (A.L.K.); (N.N.M.)
| | - Andrew L. Kleinhenz
- College of Medicine and Life Science, University of Toledo, Toledo, OH 43614, USA; (A.L.); (J.D.B.); (R.C.S.); (J.M.); (R.K.); (A.M.); (J.N.); (S.P.); (P.H.); (M.Y.); (J.B.); (A.L.K.); (N.N.M.)
| | - Andrew P. Ault
- Department of Chemistry, University of Michigan, Ann Arbor, MI 48109, USA;
| | - Judy A. Westrick
- Lumigen Instrumentation Center, Department of Chemistry, Wayne State University, Detroit, MI 48202, USA;
| | - Nikolai N. Modyanov
- College of Medicine and Life Science, University of Toledo, Toledo, OH 43614, USA; (A.L.); (J.D.B.); (R.C.S.); (J.M.); (R.K.); (A.M.); (J.N.); (S.P.); (P.H.); (M.Y.); (J.B.); (A.L.K.); (N.N.M.)
| | - David J. Kennedy
- College of Medicine and Life Science, University of Toledo, Toledo, OH 43614, USA; (A.L.); (J.D.B.); (R.C.S.); (J.M.); (R.K.); (A.M.); (J.N.); (S.P.); (P.H.); (M.Y.); (J.B.); (A.L.K.); (N.N.M.)
- Correspondence: (D.J.K.); (S.T.H.); Tel.: +1-419-383-6822 (D.J.K.); +1-419-383-6859 (S.T.H.)
| | - Steven T. Haller
- College of Medicine and Life Science, University of Toledo, Toledo, OH 43614, USA; (A.L.); (J.D.B.); (R.C.S.); (J.M.); (R.K.); (A.M.); (J.N.); (S.P.); (P.H.); (M.Y.); (J.B.); (A.L.K.); (N.N.M.)
- Correspondence: (D.J.K.); (S.T.H.); Tel.: +1-419-383-6822 (D.J.K.); +1-419-383-6859 (S.T.H.)
| |
Collapse
|
7
|
Ghadaksaz A, Nodoushan SM, Sedighian H, Behzadi E, Fooladi AAI. Evaluation of the Role of Probiotics As a New Strategy to Eliminate Microbial Toxins: a Review. Probiotics Antimicrob Proteins 2022; 14:224-237. [PMID: 35031968 DOI: 10.1007/s12602-021-09893-2] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 12/15/2021] [Indexed: 01/17/2023]
Abstract
Probiotics are living microorganisms that have favorable effects on human and animal health. The most usual types of microorganisms recruited as probiotics are lactic acid bacteria (LAB) and bifidobacteria. To date, numerous utilizations of probiotics have been reported. In this paper, it is suggested that probiotic bacteria can be recruited to remove and degrade different types of toxins such as mycotoxins and algal toxins that damage host tissues and the immune system causing local and systemic infections. These microorganisms can remove toxins by disrupting, changing the permeability of the plasma membrane, producing metabolites, inhibiting the protein translation, hindering the binding to GTP binding proteins to GM1 receptors, or by preventing the interaction between toxins and adhesions. Here, we intend to review the mechanisms that probiotic bacteria use to eliminate and degrade microbial toxins.
Collapse
Affiliation(s)
- Abdolamir Ghadaksaz
- Department of Biology, Science and Research Branch, Islamic Azad University, Tehran, Iran
| | - Somayeh Mousavi Nodoushan
- Applied Microbiology Research Center, Systems Biology and Poisonings Institute, Baqiyatallah University of Medical Sciences, Vanak Sq. Molasadra St, Tehran, Iran
| | - Hamid Sedighian
- Applied Microbiology Research Center, Systems Biology and Poisonings Institute, Baqiyatallah University of Medical Sciences, Vanak Sq. Molasadra St, Tehran, Iran
| | - Elham Behzadi
- Department of Microbiology, College of Basic Sciences, Shahr-E-Qods Branch, Islamic Azad University, Tehran, Iran
| | - Abbas Ali Imani Fooladi
- Applied Microbiology Research Center, Systems Biology and Poisonings Institute, Baqiyatallah University of Medical Sciences, Vanak Sq. Molasadra St, Tehran, Iran.
| |
Collapse
|
8
|
Zoghi A, Massoud R, Todorov SD, Chikindas ML, Popov I, Smith S, Khosravi-Darani K. Role of the lactobacilli in food bio-decontamination: Friends with benefits. Enzyme Microb Technol 2021; 150:109861. [PMID: 34489020 DOI: 10.1016/j.enzmictec.2021.109861] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/28/2021] [Revised: 06/21/2021] [Accepted: 06/24/2021] [Indexed: 10/21/2022]
Abstract
Food contamination such as toxins and heavy metals has been increasing in the last few decades as a result of industrialization in general and as part of food production in particular. Application of microorganisms in toxins and heavy metals bio-removal has been documented and applied as a favorable decontamination approach due to being environmentally friendly, reasonably simple, and economically feasible. Lactobacilli have been proposed and applied as a beneficial biologic sorbent for toxins and heavy metals in processes of reducing their hazardous bio-availability. The purpose of this review is to summarize the known role of Lactobacillus bacterial species in food bio-decontamination processes. After a quick glimpse of the worthy properties of lactobacilli, their cell wall structure is mentioned. Then the potential role of Lactobacillus strains for mycotoxins (aflatoxins, patulin, ochratoxin A, fumonisins, zearalenone, cyanotoxins, and trichothecenes) and heavy metals (lead, arsenic copper, mercury, cadmium, zinc, aluminum, chromium, and iron) bio-removal were described. In addition, the role of various factors in removal yield and the decontamination mechanism were explained. Finally, the lactobacilli-contaminant stability, in vivo studies, and being a friend or foe of Lactobacillus bacteria are discussed.
Collapse
Affiliation(s)
- Alaleh Zoghi
- Department of Food Science and Technology, National Nutrition and Food Technology Research Institute, Faculty of Nutrition Science and Food Technology, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Ramona Massoud
- Department of Food and Technology, Standard Organization, Tehran, Iran
| | - Svetoslav Dimitrov Todorov
- ProBacLab, Department of Advanced Convergence, Handong Global University, Pohang, Gyeongbuk, 37554, Republic of Korea
| | - Michael Leonidas Chikindas
- Health Promoting Naturals Laboratory, School of Environmental and Biological Sciences, Rutgers State University, New Brunswick, New Jersey, 08901, USA; Center for Agrobiotechnology, Don State Technical University, Rostov-on-Don, Russia; I.M. Sechenov First Moscow State Medical University, Moscow, Russia
| | - Igor Popov
- Center for Agrobiotechnology, Don State Technical University, Rostov-on-Don, Russia
| | - Stephanie Smith
- Project SUPER, Douglass Residential College, Rutgers University, New Brunswick, NJ, 08901, USA
| | - Kianoush Khosravi-Darani
- Department of Food Science and Technology, National Nutrition and Food Technology Research Institute, Faculty of Nutrition Science and Food Technology, Shahid Beheshti University of Medical Sciences, Tehran, Iran.
| |
Collapse
|
9
|
Torres-Gregorio M, Santiago-López L, Vallejo-Cordoba B, González-Córdova AF, Garcia HS, Hernandez-Mendoza A. Evaluation of acrylamide-removing properties of bacterial consortia under simulated gastrointestinal conditions. JOURNAL OF THE SCIENCE OF FOOD AND AGRICULTURE 2021; 101:5049-5055. [PMID: 33570782 DOI: 10.1002/jsfa.11149] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/15/2020] [Revised: 01/22/2021] [Accepted: 02/11/2021] [Indexed: 06/12/2023]
Abstract
BACKGROUND Previous studies have demonstrated the acrylamide-removing properties of probiotic monocultures; however, potential advantages of consortia over monocultures in reducing the dietary exposure to acrylamide have not been proven. Hence this work aims to assess the acrylamide (AA)-binding properties of bacterial consortia, consisting of either probiotic strains and / or representative bacteria of duodenal microbiota, exposed to simulated gastrointestinal conditions (SGC). The AA binding capacity of ten probiotic strains (PS) and six duodenal strains (NDS) was evaluated under different conditions; then, three different consortia (PS, NDS, and PS + NDS) were assessed under SGC. RESULTS Among individual PS, Bacillus coagulans GBI-30, Lactobacillus fermentum J23, L. pentosus J37 and J24, and L. casei Shirota, exhibited the highest AA-binding capacity (80-87%), while Bifidobacterium catenulatun ATCC27676, Streptococcus salivarius subsp. thermophilus ATCC19258, and S. gallolyticus ATCC9809 were the best (ca. 68%) NDS monocultures. Probiotic strain consortia showed higher (P < 0.05) AA binding capacity (> 90%) than monoculture bacteria. Conversely, individual NDS cultures displayed higher (P < 0.05) binding capacity than NDS consortia (60%). A significant reduction (P < 0.05) in AA removal capacity was observed when consortia were exposed to SGC, PS consortia being the most effective (> 60% removal). CONCLUSION These results suggest that consortia of specific PS could play an important role in reducing the intestinal availability of acrylamide. © 2021 Society of Chemical Industry.
Collapse
Affiliation(s)
- Margarita Torres-Gregorio
- Unidad de Investigación y Desarrollo en Alimentos (UNIDA), Tecnológico Nacional de México/Instituto Tecnológico de Veracruz, Veracruz, Mexico
| | - Lourdes Santiago-López
- Laboratorio de Química y Biotecnología de Productos Lácteos, Centro de Investigación en Alimentación y Desarrollo A. C., Hermosillo, Mexico
| | - Belinda Vallejo-Cordoba
- Laboratorio de Química y Biotecnología de Productos Lácteos, Centro de Investigación en Alimentación y Desarrollo A. C., Hermosillo, Mexico
| | - Aarón F González-Córdova
- Laboratorio de Química y Biotecnología de Productos Lácteos, Centro de Investigación en Alimentación y Desarrollo A. C., Hermosillo, Mexico
| | - Hugo Sergio Garcia
- Unidad de Investigación y Desarrollo en Alimentos (UNIDA), Tecnológico Nacional de México/Instituto Tecnológico de Veracruz, Veracruz, Mexico
| | - Adrián Hernandez-Mendoza
- Laboratorio de Química y Biotecnología de Productos Lácteos, Centro de Investigación en Alimentación y Desarrollo A. C., Hermosillo, Mexico
| |
Collapse
|
10
|
A Brief Review of the Structure, Cytotoxicity, Synthesis, and Biodegradation of Microcystins. WATER 2021. [DOI: 10.3390/w13162147] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Abstract
Harmful cyanobacterial blooms pose an environmental health hazard due to the release of water-soluble cyanotoxins. One of the most prevalent cyanotoxins in nature is microcystins (MCs), a class of cyclic heptapeptide hepatotoxins, and they are produced by several common cyanobacteria in aquatic environments. Once released from cyanobacterial cells, MCs are subjected to physical chemical and biological transformations in natural environments. MCs can also be taken up and accumulated in aquatic organisms and their grazers/predators and induce toxic effects in several organisms, including humans. This brief review aimed to summarize our current understanding on the chemical structure, exposure pathway, cytotoxicity, biosynthesis, and environmental transformation of microcystins.
Collapse
|
11
|
Ondiek W, Wang Y, Sun L, Zhou L, On SL, Zheng H, Ravi G. Removal of aflatoxin b1 and t-2 toxin by bacteria isolated from commercially available probiotic dairy foods. FOOD SCI TECHNOL INT 2021; 28:15-25. [PMID: 33478275 DOI: 10.1177/1082013220987916] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/12/2023]
Abstract
This study isolated lactic acid bacteria from commercially available probiotic foods to determine their capacity to remove aflatoxin B1 (AFB1) and trichothecene-2 (T-2). The removal rates by original live and heat-treated cells of lactic acid bacteria (LAB) were compared to test the effect of heat treatment on efficacy. LAB is capable to remove up to 46% of AFB1 and up to 45% of T-2 toixn. The toxin removal capability increased as toxin concentration increased despite bacterial cell viability declining. Surprisingly, the denatured LAB removed greater percentages of AFB1 (up to 62%) and T-2 (up to 52%) than live bacterial cells (P < 0.05), lending support to the hypothesis that there is higher binding of toxins to the cell membrane of nonviable cells. The research provided practical evidences, which suggest that when ingested into the gut biota, LAB could likely reduce absorption of AFB1 and T-2 from contaminated foods.
Collapse
Affiliation(s)
- Walter Ondiek
- Department of Wine, Food & Molecular BioSciences, Lincoln University, Lincoln, New Zealand
| | - Yaling Wang
- College of Food Science & Technology, Guangdong Ocean University, Zhanjiang, People's Republic of China
| | - Lijun Sun
- College of Food Science & Technology, Guangdong Ocean University, Zhanjiang, People's Republic of China
| | - Langhua Zhou
- College of Food Science & Technology, Guangdong Ocean University, Zhanjiang, People's Republic of China
| | - Stephen Lw On
- Department of Wine, Food & Molecular BioSciences, Lincoln University, Lincoln, New Zealand
| | - Haotian Zheng
- Department of Food, Bioprocessing and Nutrition Sciences, Southeast Dairy Foods Research Center, North Carolina State University, Raleigh, NC, USA.,Dairy Innovation Institute, California Polytechnic State University, San Luis Obispo, CA, USA
| | - Gooneratne Ravi
- Department of Wine, Food & Molecular BioSciences, Lincoln University, Lincoln, New Zealand
| |
Collapse
|
12
|
Zhao L, Pan X, Yang Q, Zhao R, Li X. The ability of lactic acid bacteria strains to remove di‐
n
‐butyl phthalate in simulated food matrices. Int J Food Sci Technol 2020. [DOI: 10.1111/ijfs.14741] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/25/2023]
Affiliation(s)
- Lili Zhao
- College of Life Sciences Henan Normal University Xinxiang453007Henan Province China
- Henan International Joint Laboratory of Agricultural Microbial Ecology and Technology Henan Normal University Xinxiang453007China
| | - Xin Pan
- College of Life Sciences Henan Normal University Xinxiang453007Henan Province China
| | - Qingxiang Yang
- College of Life Sciences Henan Normal University Xinxiang453007Henan Province China
- Henan International Joint Laboratory of Agricultural Microbial Ecology and Technology Henan Normal University Xinxiang453007China
| | - Ruixiang Zhao
- School of Food Science Henan Institute of Science and Technology Xinxiang453003China
| | - Xinlei Li
- College of Life Sciences Henan Normal University Xinxiang453007Henan Province China
| |
Collapse
|
13
|
Isolation and characterization of an Enterococcus strain from Chinese sauerkraut with potential for lead removal. Eur Food Res Technol 2020. [DOI: 10.1007/s00217-020-03555-3] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
|
14
|
A Mini Review on Microcystins and Bacterial Degradation. Toxins (Basel) 2020; 12:toxins12040268. [PMID: 32326338 PMCID: PMC7232508 DOI: 10.3390/toxins12040268] [Citation(s) in RCA: 52] [Impact Index Per Article: 13.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/26/2020] [Revised: 04/08/2020] [Accepted: 04/11/2020] [Indexed: 02/02/2023] Open
Abstract
Microcystins (MCs) classified as hepatotoxic and carcinogenic are the most commonly reported cyanobacterial toxins found in the environment. Microcystis sp. possessing a series of MC synthesis genes (mcyA-mcyJ) are well documented for their excessive abundance, numerous bloom occurrences and MC producing capacity. About 246 variants of MC which exert severe animal and human health hazards through the inhibition of protein phosphatases (PP1 and PP2A) have been characterized. To minimize and prevent MC health consequences, the World Health Organization proposed 1 µg/L MC guidelines for safe drinking water quality. Further the utilization of bacteria that represent a promising biological treatment approach to degrade and remove MC from water bodies without harming the environment has gained global attention. Thus the present review described toxic effects and bacterial degradation of MCs.
Collapse
|
15
|
Vieco-Saiz N, Belguesmia Y, Raspoet R, Auclair E, Gancel F, Kempf I, Drider D. Benefits and Inputs From Lactic Acid Bacteria and Their Bacteriocins as Alternatives to Antibiotic Growth Promoters During Food-Animal Production. Front Microbiol 2019; 10:57. [PMID: 30804896 PMCID: PMC6378274 DOI: 10.3389/fmicb.2019.00057] [Citation(s) in RCA: 262] [Impact Index Per Article: 52.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/31/2018] [Accepted: 01/14/2019] [Indexed: 12/27/2022] Open
Abstract
Resistance to antibiotics is escalating and threatening humans and animals worldwide. Different countries have legislated or promoted the ban of antibiotics as growth promoters in livestock and aquaculture to reduce this phenomenon. Therefore, to improve animal growth and reproduction performance and to control multiple bacterial infections, there is a potential to use probiotics as non-antibiotic growth promoters. Lactic acid bacteria (LAB) offer various advantages as potential probiotics and can be considered as alternatives to antibiotics during food-animal production. LAB are safe microorganisms with abilities to produce different inhibitory compounds such as bacteriocins, organic acids as lactic acid, hydrogen peroxide, diacetyl, and carbon dioxide. LAB can inhibit harmful microorganisms with their arsenal, or through competitive exclusion mechanism based on competition for binding sites and nutrients. LAB endowed with specific enzymatic functions (amylase, protease…) can improve nutrients acquisition as well as animal immune system stimulation. This review aimed at underlining the benefits and inputs from LAB as potential alternatives to antibiotics in poultry, pigs, ruminants, and aquaculture production.
Collapse
Affiliation(s)
- Nuria Vieco-Saiz
- EA7394-ICV, Institut Charles Viollette, Université de Lille, Villeneuve-d’Ascq, France
- Phileo Lesaffre Animal Care, Marcq-en-Barœul, France
| | - Yanath Belguesmia
- EA7394-ICV, Institut Charles Viollette, Université de Lille, Villeneuve-d’Ascq, France
| | - Ruth Raspoet
- Phileo Lesaffre Animal Care, Marcq-en-Barœul, France
| | - Eric Auclair
- Phileo Lesaffre Animal Care, Marcq-en-Barœul, France
| | - Frédérique Gancel
- EA7394-ICV, Institut Charles Viollette, Université de Lille, Villeneuve-d’Ascq, France
| | - Isabelle Kempf
- Laboratoire de Ploufragan-Plouzané-Niort, Agence Nationale de Sécurité Sanitaire de l’Alimentation, de l’Environnement et du Travail (ANSES), Ploufragan, France
- Université Bretagne Loire, Rennes, France
| | - Djamel Drider
- EA7394-ICV, Institut Charles Viollette, Université de Lille, Villeneuve-d’Ascq, France
| |
Collapse
|
16
|
Massey IY, Zhang X, Yang F. Importance of bacterial biodegradation and detoxification processes of microcystins for environmental health. JOURNAL OF TOXICOLOGY AND ENVIRONMENTAL HEALTH. PART B, CRITICAL REVIEWS 2018; 21:357-369. [PMID: 30373489 DOI: 10.1080/10937404.2018.1532701] [Citation(s) in RCA: 20] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/08/2023]
Abstract
Microcystins (MC) the most frequently reported cyanobacterial harmful algal bloom toxins primarily found in some species of freshwater genera pose a serious threat to human and animal health. To reduce health risks associated with MC exposure it is important to remove these toxins found in drinking and recreational waterbodies. Since the physical and chemical water treatment methods are inefficient in completely degrading MC, alternative approaches to effectively detoxify MC have become the focus of global research. The aim of this review was to provide the current approach to cost-effective biological treatment methods which utilize bacteria to degrade MC without generation of harmful by-products. In addition, the catabolic pathways involved in MC-degradation involving proteins encoded mlr gene cluster, intermediate products and efficiencies of bacteria strain/bacteria community are presented and compared.
Collapse
Affiliation(s)
- Isaac Yaw Massey
- a Department of Occupational and Environmental Health, Xiangya School of Public Health , Central South University , Changsha , China
| | - Xian Zhang
- a Department of Occupational and Environmental Health, Xiangya School of Public Health , Central South University , Changsha , China
| | - Fei Yang
- a Department of Occupational and Environmental Health, Xiangya School of Public Health , Central South University , Changsha , China
- b Key Laboratory of Environmental Medicine Engineering, Ministry of Education , School of Public Health Southeast University , Nanjing , China
- c Key laboratory of Hunan Province for Water Environment and Agriculture Product Safety , Central South University , Changsha , China
| |
Collapse
|
17
|
Mrdjen I, Lee J. Simple and practical on-site treatment of high microcystin levels in water using polypropylene plastic. JOURNAL OF ENVIRONMENTAL SCIENCE AND HEALTH. PART A, TOXIC/HAZARDOUS SUBSTANCES & ENVIRONMENTAL ENGINEERING 2018; 53:1000-1005. [PMID: 29985758 DOI: 10.1080/10934529.2018.1471032] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/08/2023]
Abstract
Microcystin (MC) is a hepatotoxin produced by various cyanobacteria during harmful algal blooms (HAB's) in freshwater environments. Advanced treatment methods can remove MC from drinking water, but are costly and do not address recreational water exposure and ecosystem health concerns. Here we investigate the feasibility of utilizing plastics as a MC-adsorbing material, for use in water resources used for recreation, agriculture, aquaculture and drinking water. Water containing 20 µg/L MC-LR was exposed to polypropylene (PP) plastic for a six-day period at varying temperatures (22, 37, 65°C). Water samples were then collected at 0, 1, 2, and 6 hour-intervals to examine short term treatment feasibility. Samples were also taken at 24 hours, 3 days, and 6 days to determine long-term treatment effectiveness. MC concentrations were analyzed using ELISA. Results showed a maximal reduction of nearly 70% of MC-LR after a 6-day treatment with PP at 65°C. Temperature enhanced MC-LR reduction over a 6-day period: 70% reduction at 65°C; 50% at 37°C; 38% at 22°C. We propose an inexpensive intervention strategy which can be deployed rapidly on-site in various source waters, including in resource-limited settings. During the high peak of HAB season, the strategy can be applied in source waters, alleviating water treatment burden for treatment plants, lowering treatment costs and reducing chemical usage.
Collapse
Affiliation(s)
- Igor Mrdjen
- a Division of Environmental Health Sciences , College of Public Health, The Ohio State University , Columbus , OH , USA
| | - Jiyoung Lee
- a Division of Environmental Health Sciences , College of Public Health, The Ohio State University , Columbus , OH , USA
- b Department of Food Science and Technology , The Ohio State University , Columbus , OH , USA
| |
Collapse
|
18
|
Corbo MR, Campaniello D, Speranza B, Altieri C, Sinigaglia M, Bevilacqua A. Neutralisation of toxins by probiotics during the transit into the gut: challenges and perspectives. Int J Food Sci Technol 2018. [DOI: 10.1111/ijfs.13745] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Affiliation(s)
- Maria Rosaria Corbo
- Department of the Science of Agriculture, Food and Environment; University of Foggia; Via Napoli 25 71122 Foggia Italy
| | - Daniela Campaniello
- Department of the Science of Agriculture, Food and Environment; University of Foggia; Via Napoli 25 71122 Foggia Italy
| | - Barbara Speranza
- Department of the Science of Agriculture, Food and Environment; University of Foggia; Via Napoli 25 71122 Foggia Italy
| | - Clelia Altieri
- Department of the Science of Agriculture, Food and Environment; University of Foggia; Via Napoli 25 71122 Foggia Italy
| | - Milena Sinigaglia
- Department of the Science of Agriculture, Food and Environment; University of Foggia; Via Napoli 25 71122 Foggia Italy
| | - Antonio Bevilacqua
- Department of the Science of Agriculture, Food and Environment; University of Foggia; Via Napoli 25 71122 Foggia Italy
| |
Collapse
|
19
|
Chiocchetti GM, Jadán-Piedra C, Monedero V, Zúñiga M, Vélez D, Devesa V. Use of lactic acid bacteria and yeasts to reduce exposure to chemical food contaminants and toxicity. Crit Rev Food Sci Nutr 2018; 59:1534-1545. [PMID: 29337587 DOI: 10.1080/10408398.2017.1421521] [Citation(s) in RCA: 35] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/15/2023]
Abstract
Chemical contaminants that are present in food pose a health problem and their levels are controlled by national and international food safety organizations. Despite increasing regulation, foods that exceed legal limits reach the market. In Europe, the number of notifications of chemical contamination due to pesticide residues, mycotoxins and metals is particularly high. Moreover, in many parts of the world, drinking water contains high levels of chemical contaminants owing to geogenic or anthropogenic causes. Elimination of chemical contaminants from water and especially from food is quite complex. Drastic treatments are usually required, which can modify the food matrix or involve changes in the forms of cultivation and production of the food products. These modifications often make these treatments unfeasible. In recent years, efforts have been made to develop strategies based on the use of components of natural origin to reduce the quantity of contaminants in foods and drinking water, and to reduce the quantity that reaches the bloodstream after ingestion, and thus, their toxicity. This review provides a summary of the existing literature on strategies based on the use of lactic acid bacteria or yeasts belonging to the genus Saccharomyces that are employed in food industry or for dietary purposes.
Collapse
Affiliation(s)
- Gabriela Matuoka Chiocchetti
- a Instituto de Agroquímica y Tecnología de Alimentos (IATA-CSIC) , C/ Agustín Escardino 7 - Paterna (Valencia) , Spain
| | - Carlos Jadán-Piedra
- a Instituto de Agroquímica y Tecnología de Alimentos (IATA-CSIC) , C/ Agustín Escardino 7 - Paterna (Valencia) , Spain
| | - Vicente Monedero
- a Instituto de Agroquímica y Tecnología de Alimentos (IATA-CSIC) , C/ Agustín Escardino 7 - Paterna (Valencia) , Spain
| | - Manuel Zúñiga
- a Instituto de Agroquímica y Tecnología de Alimentos (IATA-CSIC) , C/ Agustín Escardino 7 - Paterna (Valencia) , Spain
| | - Dinoraz Vélez
- a Instituto de Agroquímica y Tecnología de Alimentos (IATA-CSIC) , C/ Agustín Escardino 7 - Paterna (Valencia) , Spain
| | - Vicenta Devesa
- a Instituto de Agroquímica y Tecnología de Alimentos (IATA-CSIC) , C/ Agustín Escardino 7 - Paterna (Valencia) , Spain
| |
Collapse
|
20
|
Lili Z, Junyan W, Hongfei Z, Baoqing Z, Bolin Z. Detoxification of cancerogenic compounds by lactic acid bacteria strains. Crit Rev Food Sci Nutr 2017; 58:2727-2742. [PMID: 29053003 DOI: 10.1080/10408398.2017.1339665] [Citation(s) in RCA: 45] [Impact Index Per Article: 6.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/02/2023]
Abstract
Carcinogens in food are an important issue that threat people's health right now. Lactic acid bacteria (LAB) strains as well-known probiotics have shown numerous perspectives in being used as a good food additive to confront cancerogenic compounds in recent years. Some LAB strains can remove cancerogenic compounds from medium environment via direct physical binding and avoid re-pollution of poisonous secondary metabolites which are generated from degradation of cancerogenic compounds. This article presents a whole overview of the physical-binding of LAB strains to such common cancerogenic compounds existed in food and feed environments as mycotoxins, polycyclic aromatic hydrocarbons (PAHs), heterocyclic amines (HAs) and pthalic acid esters (PAEs).In most cases, summaries of these published researches show that the binding of LAB strains to cancerogenic compounds is a physical process. Binding sites generally take place in cell wall, and peptidoglycan from LAB cells is the chief binding site. The adsorption of lactic acid bacteria to cancerogenic compounds is strain-specific. Specially, the strains from the two genera Lactobacillus and Bifidobacterium show a better potential in binding cancerogenic compounds. Moreover, we firstly used molecular dynamic computer model as a highly potential tool to simulate the binding behavior of peptidoglycan from Lactobacillus acidophilus to DBP, one of pthalic acid esters with genetic toxicity. It was seen that the theoretical data were quite consistent with the experimental results in terms of the ability of this bacterium to bind DBP. Also, the toxicity reduction of cancerogenic compounds by LAB strains could be achieved either in gastrointestinal model or animal tests and clinical researches as well. In conclusion, carefully selected LAB strains should be a good solution as one of safety strategies to reduce potential risk of cancerogenic compounds from food-based products.
Collapse
Affiliation(s)
- Zhao Lili
- a College of Biological Science & Biotechnology , Beijing Forestry University , Beijing , China
| | - Wei Junyan
- a College of Biological Science & Biotechnology , Beijing Forestry University , Beijing , China
| | - Zhao Hongfei
- a College of Biological Science & Biotechnology , Beijing Forestry University , Beijing , China.,b Beijing Key Laboratory of Forest Food Processing and Safety , Beijing , China
| | - Zhu Baoqing
- a College of Biological Science & Biotechnology , Beijing Forestry University , Beijing , China
| | - Zhang Bolin
- a College of Biological Science & Biotechnology , Beijing Forestry University , Beijing , China.,b Beijing Key Laboratory of Forest Food Processing and Safety , Beijing , China
| |
Collapse
|
21
|
Sheng Y, Wang Y, Yang X, Zhang B, He X, Xu W, Huang K. Cadmium tolerant characteristic of a newly isolated Lactococcus lactis subsp. lactis. ENVIRONMENTAL TOXICOLOGY AND PHARMACOLOGY 2016; 48:183-190. [PMID: 27816003 DOI: 10.1016/j.etap.2016.10.007] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/12/2016] [Revised: 10/11/2016] [Accepted: 10/12/2016] [Indexed: 06/06/2023]
Abstract
Environmental contamination caused by heavy metals poses a major threat to the wildlife and human health for their toxicity and intrinsically persistent nature. Some specific food grade bacteria have properties that enable them to eliminate heavy metals from food and water. Lactococcus lactis subsp. lactis, newly isolated from pickles, is a cadmium (Cd) tolerant bacteria. Cd resistant properties of the lactis was evaluated under different Cd stresses. Cd accumulation in different cellular parts was determined by ICP-MS and cell morphology changes were measured by SEM-EDS and TEM-EDS. In addition, functional groups associated with Cd resistance were detected by infrared spectroscopic analysis. The results indicated that Cd mainly accumulated in the cell surface structures including cytoderm and cytomembrane. Functional groups such as OH and NH2 in the cell surface played essential roles in Cd biosorption. The elements of O, P, S, and N of polysaccharide, membrane protein and phosphatidate in the cell surface structures might be responsible for Cd biosorption for their strong electronegativity. This study indicated that ultrastructural analysis can be a supplemental method to study heavy metal resistance mechanism of microorganism and the newly isolated lactococcus lactis subsp. lactis has great potential to be applied to decontamination of heavy metals.
Collapse
Affiliation(s)
- Yao Sheng
- Beijing Advanced Innovation Center for Food Nutrition and Human Health, College of Food Science and Nutritional Engineering, China Agricultural University, Beijing 100083, China
| | - Ying Wang
- Beijing Advanced Innovation Center for Food Nutrition and Human Health, College of Food Science and Nutritional Engineering, China Agricultural University, Beijing 100083, China
| | - Xuan Yang
- Beijing Advanced Innovation Center for Food Nutrition and Human Health, College of Food Science and Nutritional Engineering, China Agricultural University, Beijing 100083, China
| | - Boyang Zhang
- Beijing Advanced Innovation Center for Food Nutrition and Human Health, College of Food Science and Nutritional Engineering, China Agricultural University, Beijing 100083, China
| | - Xiaoyun He
- Beijing Advanced Innovation Center for Food Nutrition and Human Health, College of Food Science and Nutritional Engineering, China Agricultural University, Beijing 100083, China; The Supervision, Inspection and Testing Center of Genetically Modified Organisms, Ministry of Agriculture, Beijing 100083, China
| | - Wentao Xu
- Beijing Advanced Innovation Center for Food Nutrition and Human Health, College of Food Science and Nutritional Engineering, China Agricultural University, Beijing 100083, China; The Supervision, Inspection and Testing Center of Genetically Modified Organisms, Ministry of Agriculture, Beijing 100083, China
| | - Kunlun Huang
- Beijing Advanced Innovation Center for Food Nutrition and Human Health, College of Food Science and Nutritional Engineering, China Agricultural University, Beijing 100083, China; The Supervision, Inspection and Testing Center of Genetically Modified Organisms, Ministry of Agriculture, Beijing 100083, China.
| |
Collapse
|
22
|
Lezcano MÁ, Morón-López J, Agha R, López-Heras I, Nozal L, Quesada A, El-Shehawy R. Presence or Absence of mlr Genes and Nutrient Concentrations Co-Determine the Microcystin Biodegradation Efficiency of a Natural Bacterial Community. Toxins (Basel) 2016; 8:toxins8110318. [PMID: 27827872 PMCID: PMC5127115 DOI: 10.3390/toxins8110318] [Citation(s) in RCA: 38] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/03/2016] [Revised: 10/26/2016] [Accepted: 10/28/2016] [Indexed: 11/16/2022] Open
Abstract
The microcystin biodegradation potential of a natural bacterial community coexisting with a toxic cyanobacterial bloom was investigated in a water reservoir from central Spain. The biodegradation capacity was confirmed in all samples during the bloom and an increase of mlrA gene copies was found with increasing microcystin concentrations. Among the 24 microcystin degrading strains isolated from the bacterial community, only 28% showed presence of mlrA gene, strongly supporting the existence and abundance of alternative microcystin degradation pathways in nature. In vitro degradation assays with both mlr+ and mlr− bacterial genotypes (with presence and absence of the complete mlr gene cluster, respectively) were performed with four isolated strains (Sphingopyxis sp. IM-1, IM-2 and IM-3; Paucibacter toxinivorans IM-4) and two bacterial degraders from the culture collection (Sphingosinicella microcystinivorans Y2; Paucibacter toxinivorans 2C20). Differences in microcystin degradation efficiencies between genotypes were found under different total organic carbon and total nitrogen concentrations. While mlr+ strains significantly improved microcystin degradation rates when exposed to other carbon and nitrogen sources, mlr− strains showed lower degradation efficiencies. This suggests that the presence of alternative carbon and nitrogen sources possibly competes with microcystins and impairs putative non-mlr microcystin degradation pathways. Considering the abundance of the mlr− bacterial population and the increasing frequency of eutrophic conditions in aquatic systems, further research on the diversity of this population and the characterization and conditions affecting non-mlr degradation pathways deserves special attention.
Collapse
Affiliation(s)
| | | | - Ramsy Agha
- Leibniz Institute of Freshwater Ecology and Inland Fisheries, Berlin 12587, Germany.
| | | | - Leonor Nozal
- IMDEA Water Institute, Alcalá de Henares, Madrid 28805, Spain.
| | - Antonio Quesada
- Departamento de Biología, Universidad Autónoma de Madrid, Cantoblanco 28049, Spain.
| | | |
Collapse
|
23
|
Zhang BH, Ding ZG, Li HQ, Mou XZ, Zhang YQ, Yang JY, Zhou EM, Li WJ. Algicidal Activity of Streptomyces eurocidicus JXJ-0089 Metabolites and Their Effects on Microcystis Physiology. Appl Environ Microbiol 2016; 82:5132-43. [PMID: 27316950 PMCID: PMC4988176 DOI: 10.1128/aem.01198-16] [Citation(s) in RCA: 31] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/19/2016] [Accepted: 06/07/2016] [Indexed: 11/20/2022] Open
Abstract
UNLABELLED Copper sulfate (CuSO4) has been widely used as an algicide to control harmful cyanobacterial blooms (CyanoHABs) in freshwater lakes. However, there are increasing concerns about this application, due mainly to the general toxicity of CuSO4 to other aquatic species and its long-term persistence in the environment. This study reported the isolation and characterization of two natural algicidal compounds, i.e., tryptamine and tryptoline, from Streptomyces eurocidicus JXJ-0089. At a concentration of 5 μg/ml, both compounds showed higher algicidal efficiencies than CuSO4 on Microcystis sp. FACHB-905 and some other harmful cyanobacterial strains. Tryptamine and tryptoline treatments induced a degradation of chlorophyll and cell walls of cyanobacteria. These two compounds also significantly increased the intracellular oxidant content, i.e., superoxide anion radical (O2 (-)) and malondialdehyde (MDA), but reduced the activity of intracellular reductants, i.e., superoxide dismutase (SOD), of cyanobacteria. Moreover, tryptamine and tryptoline treatments significantly altered the internal and external contents of microcystin-LR (MC-LR), a common cyanotoxin. Like CuSO4, tryptamine and tryptoline led to releases of intracellular MC-LR from Microcystis, but with lower rates than CuSO4 Tryptamine and tryptoline (5 μg/ml) in cyanobacterial cultures were completely degraded within 8 days, while CuSO4 persisted for months. Overall, our results suggest that tryptamine and tryptoline could potentially serve as more efficient and environmentally friendly alternative algicides than CuSO4 in controlling harmful cyanobacterial blooms. IMPORTANCE Cyanobacterial harmful algal blooms (CyanoHABs) in aquatic environments have become a worldwide problem. Numerous efforts have been made to seek means to prevent, control, and mitigate CyanoHABs. Copper sulfate (CuSO4), was once a common algicide to treat and control CyanoHABs. However, its application has become limited due to concerns about its general toxicity to other aquatic species and its long-term persistence in the environment. There is a great need for algicides with higher specificity and low environmental impacts. This study reports the isolation and characterization of two natural algicidal compounds from a streptomycete strain, Streptomyces eurocidicus JXJ-0089. Our results suggest that the identified algicides could potentially serve as more efficient and environmentally friendly alternative algicides than CuSO4 in controlling harmful cyanobacterial blooms.
Collapse
Affiliation(s)
- Bing-Huo Zhang
- College of Life Science, Jiujiang University, Jiujiang, People's Republic of China State Key Laboratory of Biocontrol and Guangdong Provincial Key Laboratory of Plant Resources, School of Life Sciences, Sun Yat-Sen University, Guangzhou, People's Republic of China
| | - Zhang-Gui Ding
- Yunnan Institute of Microbiology, Yunnan University, Kunming, People's Republic of China
| | - Han-Quan Li
- College of Life Science, Jiujiang University, Jiujiang, People's Republic of China
| | - Xiao-Zhen Mou
- Department of Biological Sciences, Kent State University, Kent, Ohio, USA
| | - Yu-Qin Zhang
- Institute of Medicinal Biotechnology, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, People's Republic of China
| | - Jian-Yuan Yang
- College of Life Science, Jiujiang University, Jiujiang, People's Republic of China
| | - En-Min Zhou
- State Key Laboratory of Biocontrol and Guangdong Provincial Key Laboratory of Plant Resources, School of Life Sciences, Sun Yat-Sen University, Guangzhou, People's Republic of China Yunnan Institute of Microbiology, Yunnan University, Kunming, People's Republic of China
| | - Wen-Jun Li
- State Key Laboratory of Biocontrol and Guangdong Provincial Key Laboratory of Plant Resources, School of Life Sciences, Sun Yat-Sen University, Guangzhou, People's Republic of China Yunnan Institute of Microbiology, Yunnan University, Kunming, People's Republic of China
| |
Collapse
|
24
|
Zhang BH, Chen W, Li HQ, Yang JY, Zha DM, Duan YQ, N Hozzein W, Xiao M, Gao R, Li WJ. L-valine, an antialgal amino acid from Streptomyces jiujiangensis JXJ 0074(T). Appl Microbiol Biotechnol 2016; 100:4627-36. [PMID: 26767990 DOI: 10.1007/s00253-015-7150-8] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/30/2015] [Revised: 10/08/2015] [Accepted: 11/05/2015] [Indexed: 10/22/2022]
Abstract
An antialgal compound was isolated from the cultured broth of Streptomyces jiujiangensis JXJ 0074(T) by using bioassay methods. Based on the data of (1)H-NMR, (13)C-NMR, ESI-MS, and thin layer chromatography, the active compound was identified as L-valine, which showed antialgal activity mainly against Microcystis. L-valine exhibited greater antialgal activities than both L-lysine and copper sulfate (CuSO4) did on Microcystis aeruginosa lawn. However, M. aeruginosa recovered growth earlier with higher growth rate in L-valine treatment than in L-lysine treatment. L-valine dissipated completely within 2 days, much quicker than L-lysine (6 days), which resulted in the lysing of more than 80 % M. aeruginosa cells and the release of amount of intracellular microcystin-LR (MC-LR) within 2 days. As a resultant, the extracellular MC-LR content was more than twice of the control from day 1 to 5. Exposure to L-valine significantly promoted the synthesis of MC-LR. L-lysine also promoted the release and synthesis of MC-LR with much lesser efficiency than L-valine. L-valine could damage Microcystis severely, causing perforation and collapse of M. aeruginosa cells and decrease of the chlorophyll. The superoxide dismutase (SOD) activity in L-valine-treated cells of M. aeruginosa initially increased with 32.94 ± 3.37 % higher than the control after 36 h and then decreased quickly. However, the increase rate of superoxide anion radical (O2 (-)) was much higher than that of SOD, which resulted in serious lipid peroxidation and accumulation of malondialdehyde (MDA). To our knowledge, this is the first report showing L-valine active against cyanobacteria.
Collapse
Affiliation(s)
- Bing-Huo Zhang
- College of Life Science, Jiujiang University, Jiujiang, 332000, People's Republic of China.,State Key Laboratory of Biocontrol and Guangdong Provincial Key Laboratory of Plant Resources, College of Ecology and Evolution, Sun Yat-Sen University, Guangzhou, 510275, People's Republic of China
| | - Wei Chen
- China Tobacco Yunnan Industrial Co. Ltd, Kunming, 650231, People's Republic of China
| | - Han-Quan Li
- College of Life Science, Jiujiang University, Jiujiang, 332000, People's Republic of China
| | - Jian-Yuan Yang
- College of Life Science, Jiujiang University, Jiujiang, 332000, People's Republic of China
| | - Dai-Ming Zha
- College of Life Science, Jiujiang University, Jiujiang, 332000, People's Republic of China
| | - Yan-Qing Duan
- China Tobacco Yunnan Industrial Co. Ltd, Kunming, 650231, People's Republic of China
| | - Wael N Hozzein
- Bioproducts Research Chair (BRC), College of Science, King Saud University, Riyadh, 11451, Kingdom of Saudi Arabia
| | - Min Xiao
- State Key Laboratory of Biocontrol and Guangdong Provincial Key Laboratory of Plant Resources, College of Ecology and Evolution, Sun Yat-Sen University, Guangzhou, 510275, People's Republic of China
| | - Rui Gao
- China Tobacco Yunnan Industrial Co. Ltd, Kunming, 650231, People's Republic of China.
| | - Wen-Jun Li
- State Key Laboratory of Biocontrol and Guangdong Provincial Key Laboratory of Plant Resources, College of Ecology and Evolution, Sun Yat-Sen University, Guangzhou, 510275, People's Republic of China.
| |
Collapse
|
25
|
Elsanhoty RM, Al-Turki IA, Ramadan MF. Application of lactic acid bacteria in removing heavy metals and aflatoxin B1 from contaminated water. WATER SCIENCE AND TECHNOLOGY : A JOURNAL OF THE INTERNATIONAL ASSOCIATION ON WATER POLLUTION RESEARCH 2016; 74:625-638. [PMID: 27508367 DOI: 10.2166/wst.2016.255] [Citation(s) in RCA: 32] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/06/2023]
Abstract
In this study selected lactic acid bacteria (LAB, Lactobacillus acidophilus, Lactobacillus rhamnosus, Lactobacillus plantrium and Streptococcus thermophiles) and probiotic bacteria (Bifidobacterium angulatum) were tested for their ability in removing heavy metals (HM) including cadmium (Cd), lead (Pb) and arsenic (As) as well as aflatoxin B1 (AFB1) from contaminated water. The biosorption parameters (pH, bacterial concentration, contact time and temperature) of removal using individual as well as mixed LAB and probiotic bacteria were studied. Removal of HM and AFB1 depended on the strain, wherein the process was strongly pH-dependent with high removal ability at a pH close to neutral. The increase in bacterial concentration enhanced the removal of Cd, Pb and As. Also, increasing of contact time and temperature increased the ability of LAB to remove HM. The effect of contact time on Cd removal was slightly different when freshly cultured cells were used. The removal of Cd, Pb and As decreased with the increase in the initial metal concentration. The most effective HM removers were Lactobacillus acidophilus and Bifidobacterium angulatum. The system was found to be adequate for concentrations of HM under investigation. At the end of the operation, the concentration of HM reached the level allowed by the World Health Organization regulations.
Collapse
Affiliation(s)
- Rafaat M Elsanhoty
- Department of Industrial Biotechnology, Institute of Genetic Engineering and Biotechnology, Sadat City University, Sadat City, Egypt
| | - I A Al-Turki
- Department of Plant production and Protection, Faculty of Agriculture and Veterinary Medicine, Qassim University, Al-Qassim, Kingdom of Saudi Arabia
| | - Mohamed Fawzy Ramadan
- Agricultural Biochemistry Department, Faculty of Agriculture, Zagazig University, Zagazig 44519, Egypt and Deanship of Scientific Research, Umm Al-Qura University, Makkah, Kingdom of Saudi Arabia E-mail:
| |
Collapse
|
26
|
Latha S, Vinothini G, Dhanasekaran D. Chromium [Cr(VI)] biosorption property of the newly isolated actinobacterial probiont Streptomyces werraensis LD22. 3 Biotech 2015; 5:423-432. [PMID: 28324541 PMCID: PMC4522735 DOI: 10.1007/s13205-014-0237-6] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/06/2013] [Accepted: 06/18/2014] [Indexed: 11/05/2022] Open
Abstract
The present work demonstrates the heavy metal resistance and detoxification of Cr(VI) by the probiotic actinobacterial cultures isolated from chicken and goat feces. The actinobacterial isolates were screened for heavy metal resistance by qualitative, semiquantitative assays and Cr(VI) biosorption was determined by analytical techniques such as atomic absorption spectrophotometry and Fourier transform infrared spectrometry (FT-IR). All the tested actinobacterial isolates (n = 20) showed resistance toward K2Cr2O7, NiCl2, ZnCl2, CuSO4 and PbNO3 at 20 mg L−1 concentration. The maximum tolerance concentration values were found to be 200–250 mg L−1 for K2Cr2O7, 100–250 mg L−1 for PbNO3 and <50–250 mg L−1 for NiCl2, ZnCl2 and CuSO4. Among the five tested heavy metals, Cr(VI) was resisted by 95 % of the tested actinobacterial cultures up to 250 mg L−1 concentration; particularly, the isolate LD22 exhibited a high degree of tolerance to all the tested heavy metals. Thus, the isolate was justifiably chosen for Cr(VI) biosorption study and the biosorption efficacy was found maximum at 100 mg L−1 of metal ion concentration (3 g L−1 of biomass dosage and pH 7.0). FT-IR spectrum revealed the chemical interactions between the hydroxyl, amine and carboxyl groups of the biomass and the metal ions. On the basis of phenotypic, physiological, biochemical and molecular characteristics the isolate LD22 was identified as Streptomyces werraensis LD22 (JX524481) which could be used to develop a biosorbent for adsorbing Cr(VI) metal ions.
Collapse
|
27
|
Abbès S, Ben Salah-Abbès J, Jebali R, Younes RB, Oueslati R. Interaction of aflatoxin B1and fumonisin B1in mice causes immunotoxicity and oxidative stress: Possible protective role using lactic acid bacteria. J Immunotoxicol 2015; 13:46-54. [DOI: 10.3109/1547691x.2014.997905] [Citation(s) in RCA: 77] [Impact Index Per Article: 8.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
|
28
|
Freitas M, Azevedo J, Carvalho AP, Campos A, Vasconcelos V. Effects of storage, processing and proteolytic digestion on microcystin-LR concentration in edible clams. Food Chem Toxicol 2014; 66:217-23. [PMID: 24491263 DOI: 10.1016/j.fct.2014.01.041] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/10/2013] [Revised: 01/08/2014] [Accepted: 01/24/2014] [Indexed: 11/28/2022]
Abstract
Accumulation of microcystin-LR (MC-LR) in edible aquatic organisms, particularly in bivalves, is widely documented. In this study, the effects of food storage and processing conditions on the free MC-LR concentration in clams (Corbicula fluminea) fed MC-LR-producing Microcystisaeruginosa (1×10(5) cell/mL) for four days, and the bioaccessibility of MC-LR after in vitro proteolytic digestion were investigated. The concentration of free MC-LR in clams decreased sequentially over the time with unrefrigerated and refrigerated storage and increased with freezing storage. Overall, cooking for short periods of time resulted in a significantly higher concentration (P<0.05) of free MC-LR in clams, specifically microwave (MW) radiation treatment for 0.5 (57.5%) and 1 min (59%) and boiling treatment for 5 (163.4%) and 15 min (213.4%). The bioaccessibility of MC-LR after proteolytic digestion was reduced to 83%, potentially because of MC-LR degradation by pancreatic enzymes. Our results suggest that risk assessment based on direct comparison between MC-LR concentrations determined in raw food products and the tolerable daily intake (TDI) value set for the MC-LR might not be representative of true human exposure.
Collapse
Affiliation(s)
- Marisa Freitas
- CIIMAR/CIMAR - Interdisciplinary Centre of Marine and Environmental Research, University of Porto, Rua dos Bragas 289, P 4050-123 Porto, Portugal; Faculty of Sciences, University of Porto, Rua do Campo Alegre, 4169-007 Porto, Portugal; Polytechnic Institute of Porto, Escola Superior de Tecnologia da Saúde do Porto, CISA/Research Center in Environment and Health, Rua de Valente Perfeito, 322, 440-330 Gaia, Portugal
| | - Joana Azevedo
- CIIMAR/CIMAR - Interdisciplinary Centre of Marine and Environmental Research, University of Porto, Rua dos Bragas 289, P 4050-123 Porto, Portugal; Polytechnic Institute of Porto, Escola Superior de Tecnologia da Saúde do Porto, CISA/Research Center in Environment and Health, Rua de Valente Perfeito, 322, 440-330 Gaia, Portugal
| | - António Paulo Carvalho
- CIIMAR/CIMAR - Interdisciplinary Centre of Marine and Environmental Research, University of Porto, Rua dos Bragas 289, P 4050-123 Porto, Portugal; Faculty of Sciences, University of Porto, Rua do Campo Alegre, 4169-007 Porto, Portugal
| | - Alexandre Campos
- CIIMAR/CIMAR - Interdisciplinary Centre of Marine and Environmental Research, University of Porto, Rua dos Bragas 289, P 4050-123 Porto, Portugal
| | - Vitor Vasconcelos
- CIIMAR/CIMAR - Interdisciplinary Centre of Marine and Environmental Research, University of Porto, Rua dos Bragas 289, P 4050-123 Porto, Portugal; Faculty of Sciences, University of Porto, Rua do Campo Alegre, 4169-007 Porto, Portugal.
| |
Collapse
|
29
|
Antioxidant Activity of Coated Probiotic Lactobacillus casei on Chromium(VI) Induced Oxidative Stress in Rats. ACTA ACUST UNITED AC 2013. [DOI: 10.1007/s40011-013-0215-5] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
|
30
|
Cyanobacterial toxin degrading bacteria: who are they? BIOMED RESEARCH INTERNATIONAL 2013; 2013:463894. [PMID: 23841072 PMCID: PMC3690202 DOI: 10.1155/2013/463894] [Citation(s) in RCA: 54] [Impact Index Per Article: 4.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 03/21/2013] [Accepted: 05/21/2013] [Indexed: 11/17/2022]
Abstract
Cyanobacteria are ubiquitous in nature and are both beneficial and detrimental to humans. Benefits include being food supplements and producing bioactive compounds, like antimicrobial and anticancer substances, while their detrimental effects are evident by toxin production, causing major ecological problems at the ecosystem level. To date, there are several ways to degrade or transform these toxins by chemical methods, while the biodegradation of these compounds is understudied. In this paper, we present a meta-analysis of the currently available 16S rRNA and mlrA (microcystinase) genes diversity of isolates known to degrade cyanobacterial toxins. The available data revealed that these bacteria belong primarily to the Proteobacteria, with several strains from the sphingomonads, and one from each of the Methylobacillus and Paucibacter genera. Other strains belonged to the genera Arthrobacter, Bacillus, and Lactobacillus. By combining the ecological knowledge on the distribution, abundance, and ecophysiology of the bacteria that cooccur with toxic cyanobacterial blooms and newly developed molecular approaches, it is possible not only to discover more strains with cyanobacterial toxin degradation abilities, but also to reveal the genes associated with the degradation of these toxins.
Collapse
|
31
|
Dziga D, Wasylewski M, Wladyka B, Nybom S, Meriluoto J. Microbial degradation of microcystins. Chem Res Toxicol 2013; 26:841-52. [PMID: 23621464 DOI: 10.1021/tx4000045] [Citation(s) in RCA: 96] [Impact Index Per Article: 8.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
Hepatotoxic microcystins that are produced by freshwater cyanobacteria pose a risk to public health. These compounds may be eliminated by enzymatic degradation. Here, we review the enzymatic pathways for the degradation of these hepatotoxins, some of which are newly discovered processes. The efficiencies of microcystin biodegradation pathways are documented in several papers and are compared here. Additionally, a comprehensive description of the microcystin enzymatic degradation scheme has been supplemented with a proposal for a new biodegradation pathway. Critical comments on less documented hypotheses are also included. The genetic aspects of biodegradation activity are discussed in detail. We also describe some methods that are useful for studying the biological decomposition of microcystins, including screening for microcystin degraders and detecting microcystin degradation products, with an emphasis on mass spectrometric methodology.
Collapse
Affiliation(s)
- Dariusz Dziga
- Department of Plant Physiology and Development, Faculty of Biochemistry, Biophysics and Biotechnology, Jagiellonian University, Kraków, Poland
| | | | | | | | | |
Collapse
|
32
|
Alamri SA. Biodegradation of microcystin-RR by Bacillus flexus isolated from a Saudi freshwater lake. Saudi J Biol Sci 2012; 19:435-40. [PMID: 23961204 DOI: 10.1016/j.sjbs.2012.06.006] [Citation(s) in RCA: 29] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/12/2012] [Revised: 05/23/2012] [Accepted: 06/02/2012] [Indexed: 11/17/2022] Open
Abstract
A bacterium capable of degrading microcystin-RR (MC-RR) was isolated from a Saudi eutrophic lake which was previously reported to have microcystin-producing cyanobacteria. Based on the analysis of the 16S rRNA gene sequence, the isolated strain SSZ01, most likely belong to the genus Bacillus with a highest sequence similarity (99%) with Bacillus flexus strain EMGA5. It was found that B. flexus strain SSZ01, possesses an mlrA gene encoding the most important enzyme for MC degradation. This strain was capable of degrading MC-RR, at a concentration of 10 mg l(-1), in batch experiments under environmentally relevant conditions. The degradation of MC-RR was completely removed within 4 d. The degradation of MC-RR by this strain occurred in a rich medium nutrient broth (NB), indicating that this could likely occur along with other organic compounds found in the environment. Therefore, the coexistence of such bacteria with MCs in the same environment can contribute to the self-purification of the ecosystem from such potent toxins. This is the first study to report that B. flexus can degrade MCs.
Collapse
Affiliation(s)
- Saad A Alamri
- Department of Biological Science, College of Science, King Khalid University, P.O. Box 10255, Abha 61321, Saudi Arabia
| |
Collapse
|
33
|
Removal of cholera toxin from aqueous solution by probiotic bacteria. Pharmaceuticals (Basel) 2012; 5:665-73. [PMID: 24281668 PMCID: PMC3763660 DOI: 10.3390/ph5060665] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/07/2012] [Revised: 06/13/2012] [Accepted: 06/15/2012] [Indexed: 11/25/2022] Open
Abstract
Cholera remains a serious health problem, especially in developing countries where basic hygiene standards are not met. The symptoms of cholera are caused by cholera toxin, an enterotoxin, which is produced by the bacterium Vibrio cholerae. We have recently shown that human probiotic bacteria are capable of removing cyanobacterial toxins from aqueous solutions. In the present study we investigate the ability of the human probiotic bacteria, Lactobacillus rhamnosus strain GG (ATCC 53103) and Bifidobacteriumlongum 46 (DSM 14583), to remove cholera toxin from solution in vitro. Lactobacillus rhamnosus strain GG and Bifidobacteriumlongum 46 were able to remove 68% and 59% of cholera toxin from aqueous solutions during 18 h of incubation at 37 °C, respectively. The effect was dependent on bacterial concentration and L. rhamnosus GG was more effective at lower bacterial concentrations. No significant effect on cholera toxin concentration was observed when nonviable bacteria or bacterial supernatant was used.
Collapse
|
34
|
Bhakta JN, Ohnishi K, Munekage Y, Iwasaki K, Wei MQ. Characterization of lactic acid bacteria-based probiotics as potential heavy metal sorbents. J Appl Microbiol 2012; 112:1193-206. [PMID: 22404232 DOI: 10.1111/j.1365-2672.2012.05284.x] [Citation(s) in RCA: 97] [Impact Index Per Article: 8.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
Abstract
AIM To isolate and characterize lactic acid bacteria (LAB) and determine whether they could potentially be used as heavy metal (cadmium and lead) absorbing probiotics. METHODS AND RESULTS The study used 53 environmental (mud and sludge) samples to isolate cadmium- and lead-resistant LAB, by following spared plate technique. A total of 255 cadmium- and lead-resistant LAB were isolated from these samples. The survival of 26 of the LAB was found after passing through sequential probiotic characterizations. These 26 probiotic LAB exhibited remarkable variations in their metal-resistant and metal-removal abilities. Of 26, seven (Cd54-2, Cd61-7, Cd69-12, Cd70-13, Pb82-8, Pb96-19 and Cd109-16) and four (Pb71-1, Pb73-2, Pb85-9 and Pb96-19) strains displayed relatively elevated cadmium- and lead-removal efficiencies from water, respectively, compare with that of the remaining strains. Strains Cd70-13 and Pb71-1 showed the highest cadmium (25%) and lead (59%) removal capacity from MRS (De Man, Rogosa and Sharpe) culture medium, respectively, amongst the selected strains and showed a good adhesive ability on fish mucus. A phylogenetic analysis of their 16S rDNA sequences revealed that the strains Cd70-13 and Pb71-1 belong to Lactobacillus reuteri. CONCLUSION Excellent probiotic, metal sorption and adhesive characteristics of newly identified Lact. reuteri strains Cd70-13 and Pb71-1 were isolated, which indicated their high potential abilities to survive in the intestinal milieu and to uptake the tested metals from the environment. SIGNIFICANCE AND IMPACT OF THE STUDY To our knowledge, this is the first study that has aimed to isolate, characterize and identify metal-resistant LAB strains that have potential to be a probiotic candidate for food and in vivo challenge studies in the intestinal milieu of fish for the uptake and control of heavy metal bioaccumulation.
Collapse
Affiliation(s)
- J N Bhakta
- Research Institute of Molecular Genetics, Faculty of Agriculture, Kochi University, Monobe, Nankoku, Kochi, Japan
| | | | | | | | | |
Collapse
|
35
|
Ho L, Sawade E, Newcombe G. Biological treatment options for cyanobacteria metabolite removal--a review. WATER RESEARCH 2012; 46:1536-1548. [PMID: 22133838 DOI: 10.1016/j.watres.2011.11.018] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/16/2011] [Revised: 10/25/2011] [Accepted: 11/04/2011] [Indexed: 05/31/2023]
Abstract
The treatment of cyanobacterial metabolites can consume many resources for water authorities which can be problematic especially with the recent shift away from chemical- and energy-intensive processes towards carbon and climate neutrality. In recent times, there has been a renaissance in biological treatment, in particular, biological filtration processes, for cyanobacteria metabolite removal. This in part, is due to the advances in molecular microbiology which has assisted in further understanding the biodegradation processes of specific cyanobacteria metabolites. However, there is currently no concise portfolio which captures all the pertinent information for the biological treatment of a range of cyanobacterial metabolites. This review encapsulates all the relevant information to date in one document and provides insights into how biological treatment options can be implemented in treatment plants for optimum cyanobacterial metabolite removal.
Collapse
Affiliation(s)
- Lionel Ho
- Australian Water Quality Centre, South Australian Water Corporation, 250 Victoria Square, Adelaide, SA 5000, Australia.
| | | | | |
Collapse
|
36
|
Nybom S, Dziga D, Heikkilä J, Kull T, Salminen S, Meriluoto J. Characterization of microcystin-LR removal process in the presence of probiotic bacteria. Toxicon 2012; 59:171-81. [DOI: 10.1016/j.toxicon.2011.11.008] [Citation(s) in RCA: 31] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/14/2011] [Revised: 10/27/2011] [Accepted: 11/02/2011] [Indexed: 11/30/2022]
|
37
|
Salminen S, Nybom S, Meriluoto J, Collado MC, Vesterlund S, El-Nezami H. Interaction of probiotics and pathogens--benefits to human health? Curr Opin Biotechnol 2010; 21:157-67. [PMID: 20413293 DOI: 10.1016/j.copbio.2010.03.016] [Citation(s) in RCA: 76] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/28/2010] [Revised: 03/22/2010] [Accepted: 03/22/2010] [Indexed: 01/16/2023]
Abstract
The probiotic terminology has matured over the years and currently a unified definition has been formed. Lactic acid bacteria (LAB) and bifidobacteria have been reported to remove heavy metals, cyanotoxins and mycotoxins from aqueous solutions. The binding processes appear to be species and strain specific. The most efficient microbial species and strains in the removal of these compounds vary between components tested. However, it is of interest to note that most strains characterized until now do not bind positive components or nutrients in the diet. This has significant implications to future detoxification biotechnology development. In a similar manner, lactic acid bacteria and bifidobacteria interact directly with viruses and pathogens in food and water as well as toxin producing microbes and some toxins. This review updates information and aims to characterize these interactions in association. The target is to understand probiotic health effects and to relate the mechanisms and actions to future potential of specific probiotic bacteria on decontamination of foods and water, and diets. The same aim is targeted in characterizing the role of probiotics in inactivating pathogens and viruses of health importance to facilitate the establishment of novel means of disease risk reduction related health benefits.
Collapse
Affiliation(s)
- Seppo Salminen
- Functional Foods Forum, University of Turku, 20014 Turku, Finland.
| | | | | | | | | | | |
Collapse
|
38
|
Lahtinen SJ, Tammela L, Korpela J, Parhiala R, Ahokoski H, Mykkänen H, Salminen SJ. Probiotics modulate the Bifidobacterium microbiota of elderly nursing home residents. AGE (DORDRECHT, NETHERLANDS) 2009; 31:59-66. [PMID: 19234769 PMCID: PMC2645989 DOI: 10.1007/s11357-008-9081-0] [Citation(s) in RCA: 54] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/12/2008] [Accepted: 10/23/2008] [Indexed: 05/10/2023]
Abstract
Gut Bifidobacterium microbiota of the elderly has been suggested to differ from that of adults, possibly promoting the risk of infections and gut barrier dysfunction. Specific probiotics may improve the gut barrier. In this randomized, placebo-controlled intervention study, 66 elders consumed a fermented oat drink containing probiotic Bifidobacterium longum 46 and B. longum 2C or a non-fermented placebo oat drink for 6 months. Faecal samples were collected before, during and after the intervention. Levels of faecal bifidobacteria were determined using species-specific quantitative PCR and plate counting. The Bifidobacterium levels in the elderly were high and the species composition diverse. Probiotic intervention increased the levels bifidobacteria significantly. Specifically, the levels of B. catenulatum, B. bifidum and B. breve were enhanced. Consumption of the fermented oat drink itself was also associated with certain changes in microbiota. In conclusion, Bifidobacterium microbiota of elderly subjects may be modulated by probiotic administration. In some healthy elderly populations, Bifidobacterium microbiota may be more abundant and diverse than previously suggested.
Collapse
Affiliation(s)
- Sampo J. Lahtinen
- Functional Foods Forum, University of Turku, 20014 Turku, Finland
- Danisco Health & Nutrition, Kantvik, Finland
| | - Liisa Tammela
- Department of Clinical Nutrition, University of Kuopio, Kuopio, Finland
| | - Jaakko Korpela
- Functional Foods Forum, University of Turku, 20014 Turku, Finland
| | - Riikka Parhiala
- Functional Foods Forum, University of Turku, 20014 Turku, Finland
| | - Henri Ahokoski
- Functional Foods Forum, University of Turku, 20014 Turku, Finland
| | - Hannu Mykkänen
- Department of Clinical Nutrition, University of Kuopio, Kuopio, Finland
| | | |
Collapse
|
39
|
The toxic effects of microcystin-LR on the reproductive system of male rats in vivo and in vitro. Reprod Toxicol 2008; 26:239-45. [PMID: 18848877 DOI: 10.1016/j.reprotox.2008.09.004] [Citation(s) in RCA: 96] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/17/2008] [Revised: 07/30/2008] [Accepted: 09/11/2008] [Indexed: 11/22/2022]
Abstract
The aim of this study was to investigate whether microcystin-LR, one of the most common cyanobacterial toxins has toxic effects on reproductive system in vivo or Leydig cells in vitro. Male rats were treated with MC-LR (i.p.) at a dose of 0, 5, 10 or15 microg/(kgday) for 28 days. Leydig cells were cultured with a culture medium including 0, 0.5, 5, 50 or 500 nM MC-LR. In vivo study, we observed exposure to 5 microg/(kgday) of MC-LR decreased the sperm motility, increasing the sperm abnormality rate, 15 microg/(kgday) of MC-LR led to the decrease of testis weight and sperm concentration, decreased the levels of serum testosterone, FSH and LH. The histological findings showed that the seminiferous tubules atrophied and obstructed. In vitro study evaluated MC-LR-induced toxicity and oxidative stress in Leydig cells. It was observed 50 and 500 nM MC-LR significantly decreased the cell viability, increasing the apoptotic DNA fragmentation, and increasing the ratio of necrotic cells. The Leydig cells exposed to MC-LR decreased testosterone production. 500 nM MC-LR increased ROS production, 50 or 500 nM MC-LR enhanced the lipid peroxidation. All Leydig cells exposed to MC-LR showed decreased SOD activity. The results of this study showed that the oxidative stress of MC-LR might lead to cytotoxicity, which may play an important role in cell apoptosis. Then could reduce the production of testosterone in Leydig cells and result in reproductive toxicity.
Collapse
|
40
|
Nybom SM, Salminen SJ, Meriluoto JA. Specific strains of probiotic bacteria are efficient in removal of several different cyanobacterial toxins from solution. Toxicon 2008; 52:214-20. [DOI: 10.1016/j.toxicon.2008.04.169] [Citation(s) in RCA: 35] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/30/2007] [Revised: 04/25/2008] [Accepted: 04/28/2008] [Indexed: 11/16/2022]
|
41
|
Reversible surface binding of cadmium and lead by lactic acid and bifidobacteria. Int J Food Microbiol 2008; 125:170-5. [DOI: 10.1016/j.ijfoodmicro.2008.03.041] [Citation(s) in RCA: 72] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/22/2007] [Revised: 03/14/2008] [Accepted: 03/31/2008] [Indexed: 11/30/2022]
|
42
|
Ouwehand AC, Bergsma N, Parhiala R, Lahtinen S, Gueimonde M, Finne-Soveri H, Strandberg T, Pitkälä K, Salminen S. Bifidobacteriummicrobiota and parameters of immune function in elderly subjects. ACTA ACUST UNITED AC 2008; 53:18-25. [DOI: 10.1111/j.1574-695x.2008.00392.x] [Citation(s) in RCA: 116] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/01/2022]
|
43
|
Nybom SMK, Collado MC, Surono IS, Salminen SJ, Meriluoto JAO. Effect of glucose in removal of microcystin-LR by viable commercial probiotic strains and strains isolated from dadih fermented milk. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2008; 56:3714-3720. [PMID: 18459790 DOI: 10.1021/jf071835x] [Citation(s) in RCA: 14] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/26/2023]
Abstract
The removal of the cyanobacterial peptide toxin microcystin-LR at 4 and 37 degrees C by six commercial probiotic strains and Lactobacillus plantarum strains IS-10506 and IS-20506 isolated from dadih, Indonesian traditional fermented milk, was assessed in this study. The aim was to evaluate the main factors influencing the viability and metabolic activity of the probiotic strains, as well as their capacity to remove microcystin-LR. Both L. plantarum strains isolated from dadih, as well as Bifidobacterium lactis strains Bb12 and 420, were shown to be more resistant, and >85% remained viable in phosphate-buffered saline (PBS) solution for 48 h of incubation at either temperature, while the viability of the other four commercial bacteria decreased markedly over time. The effect of glucose on viability and removal of toxin was shown to be a strain-specific and strain-dependent property, but in general, the efficiency of microcystin-LR removal increased when glucose was added to the solution. A maximum removal of 95% was observed for L. plantarum strain IS-20506 (37 degrees C, 10 (11) colony-forming units mL(-1)) with 1-2% glucose supplementation and 75% in PBS alone.
Collapse
Affiliation(s)
- Sonja M K Nybom
- Department of Biochemistry and Pharmacy, Abo Akademi University, Tykistökatu 6A, 20520 Turku, Finland.
| | | | | | | | | |
Collapse
|
44
|
Halttunen T, Collado MC, El-Nezami H, Meriluoto J, Salminen S. Combining strains of lactic acid bacteria may reduce their toxin and heavy metal removal efficiency from aqueous solution. Lett Appl Microbiol 2007; 46:160-5. [PMID: 18028332 DOI: 10.1111/j.1472-765x.2007.02276.x] [Citation(s) in RCA: 106] [Impact Index Per Article: 6.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
AIMS The primary objective of this study was to compare the removal of cadmium, lead, aflatoxin B1 and microcystin-LR from aqueous solution by Lactobacillus rhamnosus GG, L. rhamnosus LC705, Propionibacterium freudenreichii shermanii JS and Bifidobacterium breve Bbi99/E8, separately and in combination. METHODS AND RESULTS The removal of toxins and heavy metals was assessed in batch experiments. The removal of all compounds was observed to be strain specific. The removal of lead by a combination of all the strains used was observed to be lower than could be predicted from the removal by single strains (P < 0.05). A similar trend was also observed with the other compounds studied. CONCLUSIONS The results show that the toxin-removal capacity of a combination of strains of lactic acid bacteria is not the sum of their individual capacities. Therefore, pure single strains should be used when the goal is to remove single compounds. The use of combinations of strains may be beneficial when several compounds are removed together. This needs to be studied in future experiments. SIGNIFICANCE AND IMPACT OF THE STUDY Lactic acid bacteria have been identified as potent tools for the decontamination of heavy metals, cyanotoxins and mycotoxins. The results of this study should be considered when selecting combinations of bacteria for the simultaneous removal of several toxic compounds.
Collapse
Affiliation(s)
- T Halttunen
- University of Turku, Functional Foods Forum, Turku, Finland.
| | | | | | | | | |
Collapse
|