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Arroussi M, Zhao J, Bai C, Zhang S, Xia Z, Jia Q, Yang K, Yang R. Evaluation of inhibition effect on microbiologically influenced corrosion of Ti-5Cu alloy against marine Bacillus vietnamensis biofilm. Bioelectrochemistry 2022; 149:108265. [DOI: 10.1016/j.bioelechem.2022.108265] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/03/2022] [Revised: 09/06/2022] [Accepted: 09/08/2022] [Indexed: 11/15/2022]
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The influence of the marine Bacillus cereus over carbon steel, stainless corrosion, and copper coupons. Arch Microbiol 2021; 204:9. [PMID: 34873663 DOI: 10.1007/s00203-021-02607-w] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/03/2021] [Revised: 11/22/2021] [Accepted: 11/23/2021] [Indexed: 10/19/2022]
Abstract
The present study evaluated the influence of the marine bacteria Bacillus cereus Mc-1 on the corrosion of 1020 carbon steel, 316L stainless steel, and copper alloy. The Mc-1 strain was grown in a modified ammoniacal citrate culture medium (CFA.ico-), CFA.ico- with sodium nitrate supplementation (NO3-), and CFA.ico- with sodium chloride supplementation (NaCl). The mass loss and corrosion rate were evaluated after the periods of 7, 15, and 30 days. The results showed that in CFA.ico- and CFA.ico- medium added NO3- the corrosion rates of carbon steel and copper alloy were high when compared to the control. Whereas the medium was supplemented with NaCl, despite the rates being above the averages of the control system, they were considerably below the previous results. In general, the corrosion rates induced by Mc-1 on 316L coupons were below the results compared to carbon steel and copper alloy. When analyzing the corrosion rate measurements, regardless of the culture medium, the corrosion levels decreased consistently after 15 days, being below the levels evaluated after 7 days of the experiment. Our analyses suggest that B. cereus Mc-1 has different influences on corrosion in different metals and environmental conditions, such as the presence of NO3- and NaCl. These results can help to better understand the influence of this bacteria genus on the corrosion of metals in marine environments.
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Yi Z, Xie J. Comparative Proteomics Reveals the Spoilage-Related Factors of Shewanella putrefaciens Under Refrigerated Condition. Front Microbiol 2021; 12:740482. [PMID: 34925259 PMCID: PMC8678035 DOI: 10.3389/fmicb.2021.740482] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/13/2021] [Accepted: 11/09/2021] [Indexed: 11/13/2022] Open
Abstract
Shewanella putrefaciens is a microorganism with strong spoilage potential for aquatic products. This study aimed to investigate the potential spoilage factors of S. putrefaciens by comparative proteomic analysis. The spoilage potential of two strains of S. putrefaciens (00A and 00B) isolated from chilled spoiled bigeye tuna was investigated. The results of total volatile basic nitrogen (TVB-N), trimethylamine (TMA) in fish inoculated with S. putrefaciens, extracellular protease activity of S. putrefaciens, and degradation of fish proteins indicated that the spoilage potential of S. putrefaciens 00A was much higher than that of 00B. Fish proteins are usually degraded by spoilage microorganism proteases into small molecular peptides and amino acids, which are subsequently degraded into spoilage metabolites in bacterial cells, leading to deterioration of fish quality. Thus, proteomic analysis of the extracellular and intracellular proteins of 00A vs. 00B was performed. The results indicated that the intracellular differentially expressed protein (IDEP) contained 243 upregulated proteins and 308 downregulated proteins, while 78 upregulated proteins and 4 downregulated proteins were found in the extracellular differentially expressed protein (EDEP). GO annotation revealed that IDEP and EDEP were mainly involved in cellular and metabolic processes. KEGG annotation results showed that the upregulated proteins in IDEP were mainly involved in sulfur metabolism, amino acid metabolism, and aminoacyl-tRNA biosynthesis, while downregulated proteins were related to propanoate metabolism. In contrast, EDEP of KEGG annotation was mainly involved in ribosomes, quorum sensing, and carbohydrate metabolism. Proteins associated with spoilage containing sulfur metabolism (sulfite reductase, sulfate adenylyltransferase, adenylyl-sulfate kinase), amino acid metabolism (biosynthetic arginine decarboxylase, histidine ammonia-lyase), trimethylamine metabolism (trimethylamine-N-oxide reductase), and extracellular proteins (ATP-dependent Clp protease proteolytic subunit) were identified as upregulated. These proteins may play a key role in the spoilage potential of S. putrefaciens. These findings would contribute to the identification of key spoilage factors and understanding of the spoilage mechanism of microorganisms.
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Affiliation(s)
- Zhengkai Yi
- College of Food Science and Technology, Shanghai Ocean University, Shanghai, China
- Shanghai Professional Technology Service Platform on Cold Chain Equipment Performance and Energy Saving Evaluation, Shanghai Ocean University, Shanghai, China
- National Experimental Teaching Demonstration Center for Food Science and Engineering, Shanghai Ocean University, Shanghai, China
| | - Jing Xie
- College of Food Science and Technology, Shanghai Ocean University, Shanghai, China
- Shanghai Professional Technology Service Platform on Cold Chain Equipment Performance and Energy Saving Evaluation, Shanghai Ocean University, Shanghai, China
- National Experimental Teaching Demonstration Center for Food Science and Engineering, Shanghai Ocean University, Shanghai, China
- Shanghai Engineering Research Center of Aquatic Product Processing and Preservation, Shanghai Ocean University, Shanghai, China
- Collaborative Innovation Center of Seafood Deep Processing, Ministry of Education, Dalian, China
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Wang Y, Wu J, Zhang D, Li E, Zhu L. The inhibition effects of Cu and Ni alloying elements on corrosion of HSLA steel influenced by Halomonas titanicae. Bioelectrochemistry 2021; 141:107884. [PMID: 34293553 DOI: 10.1016/j.bioelechem.2021.107884] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/04/2021] [Revised: 06/29/2021] [Accepted: 07/01/2021] [Indexed: 11/16/2022]
Abstract
Halomonas titanicae accelerated steel corrosion by dissimilatory Fe(III) reduction under anaerobic environments, and their adhesion was the key to achieving extracellular electron transfer between cells and Fe(III). This work investigated the inhibition effects of Cu and Ni alloying elements on corrosion of high strength low alloy (HSLA) steel affected by H. titanicae. It was found that both the addition of Cu (1.3%) and high content of Ni (7.2%) brought better corrosion resistance than the steel containing 4.8% Ni via decreasing the amount of sessile bacterial cells. And the inhibition efficiency of Cu with the lower content was stronger than that of Ni with the higher content. Biofilm inhibition mechanisms varied from Cu to Ni alloying elements, and the former was achieved via bactericidal Cu ions released from steel. While for the HSLA steel with high Ni content, the formation of nickel oxides including NiFe2O4 and Ni(OH)2 refined the grains of corrosion products and decreased the bacterial attachment.
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Affiliation(s)
- Yu Wang
- Key Laboratory of Marine Environmental Corrosion and Biofouling, Institute of Oceanology, Chinese Academy of Sciences, Qingdao 266071, China; Open Studio for Marine Corrosion and Protection, Qingdao National Laboratory for Marine Science and Technology, Qingdao 266237, China; Center for Ocean Mega-Science, Chinese Academy of Sciences, Qingdao 266071, China; University of Chinese Academy of Sciences, Beijing 100049, China
| | - Jiajia Wu
- Key Laboratory of Marine Environmental Corrosion and Biofouling, Institute of Oceanology, Chinese Academy of Sciences, Qingdao 266071, China; Open Studio for Marine Corrosion and Protection, Qingdao National Laboratory for Marine Science and Technology, Qingdao 266237, China; Center for Ocean Mega-Science, Chinese Academy of Sciences, Qingdao 266071, China.
| | - Dun Zhang
- Key Laboratory of Marine Environmental Corrosion and Biofouling, Institute of Oceanology, Chinese Academy of Sciences, Qingdao 266071, China; Open Studio for Marine Corrosion and Protection, Qingdao National Laboratory for Marine Science and Technology, Qingdao 266237, China; Center for Ocean Mega-Science, Chinese Academy of Sciences, Qingdao 266071, China.
| | - Ee Li
- Key Laboratory of Marine Environmental Corrosion and Biofouling, Institute of Oceanology, Chinese Academy of Sciences, Qingdao 266071, China; Open Studio for Marine Corrosion and Protection, Qingdao National Laboratory for Marine Science and Technology, Qingdao 266237, China; Center for Ocean Mega-Science, Chinese Academy of Sciences, Qingdao 266071, China
| | - Liyang Zhu
- Key Laboratory of Marine Environmental Corrosion and Biofouling, Institute of Oceanology, Chinese Academy of Sciences, Qingdao 266071, China; Open Studio for Marine Corrosion and Protection, Qingdao National Laboratory for Marine Science and Technology, Qingdao 266237, China; Center for Ocean Mega-Science, Chinese Academy of Sciences, Qingdao 266071, China
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Liu X, Feng Y, Lai X, Deng T, Liu X, Lyu M, Wang S. Virgibacillus halodenitrificans ST-1 for fermentation of shrimp paste and hydrolysates of its protease. Food Sci Nutr 2020; 8:5352-5361. [PMID: 33133538 PMCID: PMC7590317 DOI: 10.1002/fsn3.1777] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/04/2020] [Revised: 06/15/2020] [Accepted: 06/17/2020] [Indexed: 02/06/2023] Open
Abstract
The nutrition and flavor of shrimp paste came from hydrolyzation by enzymes that were produced by microorganisms. The salt-tolerant strain Virgibacillus halodenitrificans ST-1 isolated from shrimp paste was studied and used in the fermentation of shrimp paste. The strain and the protease produced by ST-1 were investigated. The optimum pH of the protease was 8.0, and the reaction temperature was 30°C. The protease showed high activity in the range of pH (5.0-11.0) and NaCl concentration (1%-15%). Divalent cations such as Ba2+, Ca2+, Mg2+, Mn2+, and Si2+ could enhance the protease activity. Residual activity of protease was more than 90% when it was incubated with PMSF and H2O2. Also, the enzyme retained more than 90% of initial activity after it was incubated with organic solvents. Variety of natural proteins could be substrates of the protease. By analyzing the release rate of free amino acids, it was predicted that the cleavage sites of the protease were mainly Glu, Asp, Gly, Leu, and Lys. Moreover, the hydrolysates of the protease had antioxidant activity, especially for DPPH and superoxide anion radical scavenging. The strain ST-1 and the protease both were excellent candidates for food industries.
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Affiliation(s)
- Xueqin Liu
- Jiangsu Key Laboratory of Marine Bioresources and Environment /Jiangsu Key Laboratory of Marine BiotechnologyJiangsu Ocean UniversityLianyungangChina
- Co‐Innovation Center of Jiangsu Marine Bio‐industry TechnologyJiangsu Ocean UniversityLianyungangChina
| | - Yanli Feng
- Jiangsu Key Laboratory of Marine Bioresources and Environment /Jiangsu Key Laboratory of Marine BiotechnologyJiangsu Ocean UniversityLianyungangChina
- Co‐Innovation Center of Jiangsu Marine Bio‐industry TechnologyJiangsu Ocean UniversityLianyungangChina
| | - Xiaohua Lai
- Jiangsu Key Laboratory of Marine Bioresources and Environment /Jiangsu Key Laboratory of Marine BiotechnologyJiangsu Ocean UniversityLianyungangChina
- Co‐Innovation Center of Jiangsu Marine Bio‐industry TechnologyJiangsu Ocean UniversityLianyungangChina
| | - Tian Deng
- Jiangsu Key Laboratory of Marine Bioresources and Environment /Jiangsu Key Laboratory of Marine BiotechnologyJiangsu Ocean UniversityLianyungangChina
- Co‐Innovation Center of Jiangsu Marine Bio‐industry TechnologyJiangsu Ocean UniversityLianyungangChina
| | - Xin Liu
- Jiangsu Key Laboratory of Marine Bioresources and Environment /Jiangsu Key Laboratory of Marine BiotechnologyJiangsu Ocean UniversityLianyungangChina
- Co‐Innovation Center of Jiangsu Marine Bio‐industry TechnologyJiangsu Ocean UniversityLianyungangChina
| | - Mingsheng Lyu
- Jiangsu Key Laboratory of Marine Bioresources and Environment /Jiangsu Key Laboratory of Marine BiotechnologyJiangsu Ocean UniversityLianyungangChina
- Co‐Innovation Center of Jiangsu Marine Bio‐industry TechnologyJiangsu Ocean UniversityLianyungangChina
- Collaborative Innovation Center of Modern Biological ManufacturingAnhui UniversityHefeiChina
| | - Shujun Wang
- Jiangsu Key Laboratory of Marine Bioresources and Environment /Jiangsu Key Laboratory of Marine BiotechnologyJiangsu Ocean UniversityLianyungangChina
- Co‐Innovation Center of Jiangsu Marine Bio‐industry TechnologyJiangsu Ocean UniversityLianyungangChina
- Collaborative Innovation Center of Modern Biological ManufacturingAnhui UniversityHefeiChina
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Raiyani NM, Singh SP. Taxonomic and functional profiling of the microbial communities of Arabian Sea: A metagenomics approach. Genomics 2020; 112:4361-4369. [PMID: 32712295 DOI: 10.1016/j.ygeno.2020.07.024] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/27/2019] [Revised: 04/13/2020] [Accepted: 07/11/2020] [Indexed: 01/08/2023]
Affiliation(s)
- Nirali M Raiyani
- UGC-CAS Department of Biosciences, Saurashtra University, Rajkot 360 005, Gujarat, India
| | - Satya P Singh
- UGC-CAS Department of Biosciences, Saurashtra University, Rajkot 360 005, Gujarat, India.
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Wang XY, Xie J. Quorum Sensing System-Regulated Proteins Affect the Spoilage Potential of Co-cultured Acinetobacter johnsonii and Pseudomonas fluorescens From Spoiled Bigeye Tuna ( Thunnus obesus) as Determined by Proteomic Analysis. Front Microbiol 2020; 11:940. [PMID: 32477317 PMCID: PMC7240109 DOI: 10.3389/fmicb.2020.00940] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/29/2019] [Accepted: 04/20/2020] [Indexed: 12/17/2022] Open
Abstract
Food spoilage by certain species of bacteria is reported to be regulated by quorum sensing (QS). Acinetobacter johnsonii and Pseudomonas fluorescens, the major specific spoilage organisms, are found to be limited in their QS and co-culture interactions. The aim of this study was to determine how QS-regulated proteins affect the spoilage potential of co-cultured A. johnsonii and P. fluorescens obtained from spoiled bigeye tuna (Thunnus obesus) using a proteomics approach. The A. johnsonii, P. fluorescens, and their co-culture tested the N-acyl-homoserine lactone (AHL) activities using reporter Chromobacterium violaceum CV026 and LC-MS/MS in qualitative and quantitative approaches, respectively. These latter showed that, of the 470 proteins and 444 proteins in A. johnsonii (A) and P. fluorescens (P), respectively, 80 were significantly up-regulated and 97 were significantly down-regulated in A vs. AP, whereas 90 were up-regulated and 65 were down-regulated in P vs. AP. The differentially expressed proteins included the AI-2E family transporter OS, 50S ribosomal protein L3, thioredoxin reductase OS, cysteine synthase CysM OS, DNA-binding response regulator, and amino acid ABC transporter ATPase OS. The cellular process (GO:0009987), metabolic process (GO:0008152), and single-organism process (GO:0044699) were classified into the gene ontology (GO) term. In addition, energy production and conversion, amino acid transport and metabolism, translation, ribosomal structure and biogenesis, post-translational modification, protein turnover, and chaperones were distributed into the clusters of orthologous groups of proteins (COG) terms. The KEGG pathways revealed that 84 and 77 differentially expressed proteins were divided into 20 KEGG pathways in A vs. AP and P vs. AP, respectively, and amino acid metabolism, carbohydrate metabolism, energy metabolism, and translation were significantly enriched. Proteins that correlated with the spoilage-related metabolic pathways, including thioredoxin reductase OS, cysteine synthase OS, and pyridoxal phosphate-dependent enzyme family protein OS, were identified. AI-2E family transporter OS and LuxR family transcriptional regulator OS were identified that related to the QS system. These findings provide a differential proteomic profile of co-culture in A. johnsonii and P. fluorescens, and have potential applications in QS and the regulation of spoilage potential.
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Affiliation(s)
- Xin-Yun Wang
- Shanghai Engineering Research Center of Aquatic Product Processing & Preservation, Shanghai Ocean University, Shanghai, China
- National Experimental Teaching Demonstration Center for Food Science and Engineering, Shanghai Ocean University, Shanghai, China
- College of Food Science and Technology, Shanghai Ocean University, Shanghai, China
| | - Jing Xie
- Shanghai Engineering Research Center of Aquatic Product Processing & Preservation, Shanghai Ocean University, Shanghai, China
- National Experimental Teaching Demonstration Center for Food Science and Engineering, Shanghai Ocean University, Shanghai, China
- College of Food Science and Technology, Shanghai Ocean University, Shanghai, China
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Effect of Bacillus subtilis on corrosion behavior of 10MnNiCrCu steel in marine environment. Sci Rep 2020; 10:5744. [PMID: 32238880 PMCID: PMC7113313 DOI: 10.1038/s41598-020-62809-y] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/03/2019] [Accepted: 03/19/2020] [Indexed: 12/17/2022] Open
Abstract
Bacillus widely exists in wet natural environment such as soil, water and air, and is often studied as one of representative microorganisms for microbiologically influenced corrosion(MIC) research. In this paper, the growth curve of Bacillus subtilis isolated from marine environment was determined by turbidimetry and its effect on corrosion behavior of 10MnNiCrCu steel was studied by open circuit potential, AC impedance, polarization curve and scanning electron microscopy(SEM). The results showed that with the change of the growth curve of Bacillus subtilis(BS), the open circuit potential(Eocp) shifted positively and then negatively, and the charge transfer resistance shown by AC impedance was much lower than that of the sterile system, increasing first and then decreasing. The polarization curves showed that the corrosion current density in BS medium was obviously higher than that in sterile system. The corrosion morphology observation showed that although a biofilm by BS developed on the steel surface, the localized corrosion of 10MnNiCrCu steel was aggravated due to the acidness of the metabolite itself and the biofilm with access for electrolyte ions.
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