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Dini S, Oz F, Bekhit AEDA, Carne A, Agyei D. Production, characterization, and potential applications of lipopeptides in food systems: A comprehensive review. Compr Rev Food Sci Food Saf 2024; 23:e13394. [PMID: 38925624 DOI: 10.1111/1541-4337.13394] [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: 11/14/2023] [Revised: 05/20/2024] [Accepted: 05/27/2024] [Indexed: 06/28/2024]
Abstract
Lipopeptides are a class of lipid-peptide-conjugated compounds with differing structural features. This structural diversity is responsible for their diverse range of biological properties, including antimicrobial, antioxidant, and anti-inflammatory activities. Lipopeptides have been attracting the attention of food scientists due to their potential as food additives and preservatives. This review provides a comprehensive overview of lipopeptides, their production, structural characteristics, and functional properties. First, the classes, chemical features, structure-activity relationships, and sources of lipopeptides are summarized. Then, the gene expression and biosynthesis of lipopeptides in microbial cell factories and strategies to optimize lipopeptide production are discussed. In addition, the main methods of purification and characterization of lipopeptides have been described. Finally, some biological activities of the lipopeptides, especially those relevant to food systems along with their mechanism of action, are critically examined.
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Affiliation(s)
- Salome Dini
- Department of Food Science, University of Otago, Dunedin, New Zealand
| | - Fatih Oz
- Department of Food Engineering, Agriculture Faculty, Atatürk University, Erzurum, Turkey
| | | | - Alan Carne
- Department of Biochemistry, University of Otago, Dunedin, New Zealand
| | - Dominic Agyei
- Department of Food Science, University of Otago, Dunedin, New Zealand
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Tiwari I, Bhojiya AA, Prasad R, Porwal S, Varma A, Choudhary DK. Putative Role of Anti-microbial Peptide Recovered from Lactiplantibacillus spp. in Biocontrol Activity. Curr Microbiol 2024; 81:88. [PMID: 38311656 DOI: 10.1007/s00284-023-03586-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/06/2023] [Accepted: 12/12/2023] [Indexed: 02/06/2024]
Abstract
Antimicrobial peptides (AMPs) stand as a promising alternative to conventional pesticides, leveraging a multifaceted approach to combat plant pathogens. This study focuses on identifying and characterizing the AMP produced by Lactiplantibacillus argentoratensis strain IT, demonstrating potent antibacterial activity against various harmful microorganisms. Evaluation of AMPs' antibacterial activity was conducted through an agar well diffusion assay, a reliable method for assessing secondary metabolite antimicrobial efficacy. The study unveils the antimicrobial potential of the purified extract obtained from Lactiplantibacillus argentoratensis IT, isolated from goat milk. Notably, the AMP exhibited robust antibacterial activity against phytopathogens affecting solanaceous crops, including the Gram-negative Ralstonia solanacearum. Expression conditions and purification methods were optimized to identify the peptide's mass and sequence, utilizing LC-MS and SDS-PAGE. This paper underscores the application potential of Lactiplantibacillus spp. IT as a biocontrol agent for managing bacterial infectious diseases in plants. Results indicate optimal AMP production at 37 °C, with a culture broth pH of 5 during fermentation. The obtained peptide sequence corresponded to peaks at 842.5 and 2866.4 m/z ratio, with a molecular weight of approximately 5 kDa according to tricine SDS-PAGE analysis. In conclusion, this study lays the foundation for utilizing Lactiplantibacillus spp. IT derived AMPs in plant biocontrol strategies, showcasing their efficacy against bacterial phytopathogens. These findings contribute valuable insights for advancing sustainable agricultural practices.
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Affiliation(s)
- Ishan Tiwari
- Amity Institute of Microbial Technology, Amity University Uttar Pradesh, Noida, 201313, India
| | - Ali Asger Bhojiya
- Department of Botany, U.S. Ostwal P.G. College, Mangalwad, Chittorgarh, Rajasthan, 312024, India
| | - Ram Prasad
- Mahatma Gandhi Central University, Motihari, Bihar, 845401, India
| | - Shalini Porwal
- Amity Institute of Microbial Technology, Amity University Uttar Pradesh, Noida, 201313, India.
| | - Ajit Varma
- Amity Institute of Microbial Technology, Amity University Uttar Pradesh, Noida, 201313, India
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Dong Q, Liu Q, Goodwin PH, Deng X, Xu W, Xia M, Zhang J, Sun R, Wu C, Wang Q, Wu K, Yang L. Isolation and Genome-Based Characterization of Biocontrol Potential of Bacillus siamensis YB-1631 against Wheat Crown Rot Caused by Fusarium pseudograminearum. J Fungi (Basel) 2023; 9:jof9050547. [PMID: 37233258 DOI: 10.3390/jof9050547] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/05/2023] [Revised: 04/18/2023] [Accepted: 05/03/2023] [Indexed: 05/27/2023] Open
Abstract
Fusarium crown rot (FCR) caused by Fusarium pseudograminearum is one of the most serious soil-borne diseases of wheat. Among 58 bacterial isolates from the rhizosphere soil of winter wheat seedlings, strain YB-1631 was found to have the highest in vitro antagonism to F. pseudograminearum growth. LB cell-free culture filtrates inhibited mycelial growth and conidia germination of F. pseudograminearum by 84.14% and 92.23%, respectively. The culture filtrate caused distortion and disruption of the cells. Using a face-to-face plate assay, volatile substances produced by YB-1631 inhibited F. pseudograminearum growth by 68.16%. In the greenhouse, YB-1631 reduced the incidence of FCR on wheat seedlings by 84.02% and increased root and shoot fresh weights by 20.94% and 9.63%, respectively. YB-1631 was identified as Bacillus siamensis based on the gyrB sequence and average nucleotide identity of the complete genome. The complete genome was 4,090,312 bp with 4357 genes and 45.92% GC content. In the genome, genes were identified for root colonization, including those for chemotaxis and biofilm production, genes for plant growth promotion, including those for phytohormones and nutrient assimilation, and genes for biocontrol activity, including those for siderophores, extracellular hydrolase, volatiles, nonribosomal peptides, polyketide antibiotics, and elicitors of induced systemic resistance. In vitro production of siderophore, β-1, 3-glucanase, amylase, protease, cellulase, phosphorus solubilization, and indole acetic acid were detected. Bacillus siamensis YB-1631 appears to have significant potential in promoting wheat growth and controlling wheat FCR caused by F. pseudograminearum.
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Affiliation(s)
- Qianqian Dong
- College of Life Sciences, Henan Agricultural University, Zhengzhou 450046, China
- Institute of Plant Protection Research, Henan Academy of Agricultural Sciences, Henan Agricultural Microbiology Innovation Center, Zhengzhou 450002, China
| | - Qingxiang Liu
- College of Life Sciences, Henan Agricultural University, Zhengzhou 450046, China
- Institute of Plant Protection Research, Henan Academy of Agricultural Sciences, Henan Agricultural Microbiology Innovation Center, Zhengzhou 450002, China
| | - Paul H Goodwin
- School of Environmental Sciences, University of Guelph, Guelph, ON N1G 2W1, Canada
| | - Xiaoxu Deng
- Institute of Plant Protection Research, Henan Academy of Agricultural Sciences, Henan Agricultural Microbiology Innovation Center, Zhengzhou 450002, China
| | - Wen Xu
- Institute of Plant Protection Research, Henan Academy of Agricultural Sciences, Henan Agricultural Microbiology Innovation Center, Zhengzhou 450002, China
| | - Mingcong Xia
- Institute of Plant Protection Research, Henan Academy of Agricultural Sciences, Henan Agricultural Microbiology Innovation Center, Zhengzhou 450002, China
| | - Jie Zhang
- Institute of Plant Protection Research, Henan Academy of Agricultural Sciences, Henan Agricultural Microbiology Innovation Center, Zhengzhou 450002, China
| | - Runhong Sun
- Institute of Plant Protection Research, Henan Academy of Agricultural Sciences, Henan Agricultural Microbiology Innovation Center, Zhengzhou 450002, China
| | - Chao Wu
- Institute of Plant Protection Research, Henan Academy of Agricultural Sciences, Henan Agricultural Microbiology Innovation Center, Zhengzhou 450002, China
| | - Qi Wang
- College of Plant Protection, China Agricultural University, Beijing 100193, China
| | - Kun Wu
- College of Life Sciences, Henan Agricultural University, Zhengzhou 450046, China
| | - Lirong Yang
- Institute of Plant Protection Research, Henan Academy of Agricultural Sciences, Henan Agricultural Microbiology Innovation Center, Zhengzhou 450002, China
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Suchi SA, Nam KB, Kim YK, Tarek H, Yoo JC. A novel antimicrobial peptide YS12 isolated from Bacillus velezensis CBSYS12 exerts anti-biofilm properties against drug-resistant bacteria. Bioprocess Biosyst Eng 2023; 46:813-828. [PMID: 36997801 DOI: 10.1007/s00449-023-02864-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/06/2022] [Accepted: 03/09/2023] [Indexed: 04/01/2023]
Abstract
Nowadays, the abuse of antibiotics has led to the rise of multi-drug-resistant bacteria. Antimicrobial peptides (AMPs), with broad-spectrum antimicrobial activity have attracted considerable attention as possible alternatives to traditional antibiotics. In this work, we aimed to evaluate the antimicrobial and anti-biofilm activity of an antimicrobial peptide designed as YS12 derived from Bacillus velezensis CBSYS12. The strain CBSYS12 was isolated from Korean food kimchi and purified followed by ultrafiltration and sequential chromatographic methodology. Hereafter, Tricine SDS-PAGE revealed a single protein band of around 3.3 kDa that was further confirmed in situ inhibitory activity of the gel. A similar molecular weight (~ 3348.4 Da) protein also appeared in MALDI-TOF confirming the purity and homogeneity of peptide YS12. Intriguingly, YS12 revealed a strong antimicrobial activity with a minimum inhibitory concentration (MIC) value ranging from 6 to 12 μg/ml for both Gram-positive and Gram-negative bacteria, such as E. coli, P. aeruginosa, MRSA 4-5, VRE 82, and M. smegmatis. We also determined the mode of action of the peptide against pathogenic microorganisms using different fluorescent dyes. In addition, the anti-biofilm assay demonstrated that peptide YS12 was able to inhibit biofilm formation around 80% for both bacterial strains E. coli and P. aeruginosa at 80 µg/ml. Notably, YS12 exhibited a greater biofilm eradication activity than commercial antibiotics. In summary, our study proposed that peptide YS12 may be used as a promising therapeutic agent to overcome drug and biofilm-related infections.
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Affiliation(s)
- Suzia Aktar Suchi
- Department of Pharmacy, College of Pharmacy, Chosun University, Gwangju, 61452, Republic of Korea
| | - Kyung Bin Nam
- Department of Pharmacy, College of Pharmacy, Chosun University, Gwangju, 61452, Republic of Korea
| | - Young Kyun Kim
- Department of Pharmacy, College of Pharmacy, Chosun University, Gwangju, 61452, Republic of Korea
| | - Hasan Tarek
- Department of Pharmacy, College of Pharmacy, Chosun University, Gwangju, 61452, Republic of Korea
| | - Jin Cheol Yoo
- Department of Pharmacy, College of Pharmacy, Chosun University, Gwangju, 61452, Republic of Korea.
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Wang H, Zhou Y, Xu S, Zhang B, Cernava T, Ma Z, Chen Y. Enhancement of herbicolin A production by integrated fermentation optimization and strain engineering in Pantoea agglomerans ZJU23. Microb Cell Fact 2023; 22:50. [PMID: 36915090 PMCID: PMC10012537 DOI: 10.1186/s12934-023-02051-z] [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: 08/28/2022] [Accepted: 02/27/2023] [Indexed: 03/14/2023] Open
Abstract
BACKGROUND The lipopeptide herbicolin A (HA) secreted by the biocontrol agent Pantoea agglomerans ZJU23 is a promising antifungal drug to combat fungal pathogens by targeting lipid rafts, both in agricultural and clinical settings. Improvement of HA production would be of great significance in promoting its commercialization. This study aims to enhance the HA production in ZJU23 by combining fermentation optimization and strain engineering. RESULTS Based on the results in the single-factor experiments, corn steep liquor, temperature and initial pH were identified as the significant affecting factors by the Plackett-Burman design. The fermentation medium and conditions were further optimized using the Box-Behnken response surface method, and the HA production of the wild type strain ZJU23 was improved from ~ 87 mg/mL in King's B medium to ~ 211 mg/mL in HA induction (HAI) medium. A transposon library was constructed in ZJU23 to screen for mutants with higher HA production, and two transcriptional repressors for HA biosynthesis, LrhA and PurR, were identified. Disruption of the LrhA gene led to increased mRNA expression of HA biosynthetic genes, and subsequently improved about twofold HA production. Finally, the HA production reached ~ 471 mg/mL in the ΔLrhA mutant under optimized fermentation conditions, which is about 5.4 times higher than before (~ 87 mg/mL). The bacterial suspension of the ΔLrhA mutant fermented in HAI medium significantly enhanced its biocontrol efficacy against gray mold disease and Fusarium crown rot of wheat, showing equivalent control efficacies as the chemical fungicides used in this study. Furthermore, HA was effective against fungicide resistant Botrytis cinerea. Increased HA production substantially improved the control efficacy against gray mold disease caused by a pyrimethanil resistant strain. CONCLUSIONS This study reveals that the transcriptional repressor LrhA negatively regulates HA biosynthesis and the defined HAI medium is suitable for HA production. These findings provide an extended basis for large-scale production of HA and promote biofungicide development based on ZJU23 and HA in the future.
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Affiliation(s)
- Hongkai Wang
- State Key Laboratory of Rice Biology, Key Laboratory of Molecular Biology of Crop Pathogens and Insects, Department of Plant Protection, Zhejiang University, Hangzhou, China
| | - Yaqi Zhou
- State Key Laboratory of Rice Biology, Key Laboratory of Molecular Biology of Crop Pathogens and Insects, Department of Plant Protection, Zhejiang University, Hangzhou, China
| | - Sunde Xu
- State Key Laboratory of Rice Biology, Key Laboratory of Molecular Biology of Crop Pathogens and Insects, Department of Plant Protection, Zhejiang University, Hangzhou, China
| | - Boyan Zhang
- State Key Laboratory of Rice Biology, Key Laboratory of Molecular Biology of Crop Pathogens and Insects, Department of Plant Protection, Zhejiang University, Hangzhou, China
| | - Tomislav Cernava
- Institute of Environmental Biotechnology, Graz University of Technology, Graz, Austria
| | - Zhonghua Ma
- State Key Laboratory of Rice Biology, Key Laboratory of Molecular Biology of Crop Pathogens and Insects, Department of Plant Protection, Zhejiang University, Hangzhou, China
| | - Yun Chen
- State Key Laboratory of Rice Biology, Key Laboratory of Molecular Biology of Crop Pathogens and Insects, Department of Plant Protection, Zhejiang University, Hangzhou, China.
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Huang X, Tian S, Chen X, Han B, Xue Y. Planktonic Growth and Biofilm Formation by Providencia rettgeri and Subsequent Effect of Tannic Acid Treatment under Food-Related Environmental Stress Conditions. J Food Prot 2022; 85:849-858. [PMID: 35271716 DOI: 10.4315/jfp-21-289] [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: 07/25/2021] [Accepted: 03/01/2022] [Indexed: 11/11/2022]
Abstract
ABSTRACT Providencia rettgeri is an opportunistic foodborne pathogen with a strong biofilm-forming ability in low-nutrition environments. However, information regarding the impact of simulated food processing conditions on P. rettgeri planktonic growth and biofilm formation is limited. Using response surface methodology (RSM), the combined effects of temperature (19 to 37°C), pH (5 to 9), and sodium chloride (NaCl) concentration (0.50 to 2.0%, w/v) were applied to construct planktonic growth and biofilm formation models for P. rettgeri. For both RSM models, an increase in NaCl concentration restricted P. rettgeri growth. Planktonic growth and biofilm formation were maximum at 27.83 and 25.41°C, respectively. Tannic acid (TA) is a highly effective antibacterial agent that inhibited planktonic and biofilm P. rettgeri under optimal growth conditions. The viability of P. rettgeri cells was decreased by TA treatment, which caused destruction of the cell membrane and production of endogenous reactive oxygen species. TA significantly inactivated P. rettgeri biofilms, as verified by observation. The obtained models in this study may be useful for describing the impact of temperature, pH, and NaCl concentration on the growth by P. rettgeri in the food processing environment and better understanding the impacts of food-related conditions on bacterial planktonic growth and biofilm formation. These results obtained for P. rettgeri planktonic cells and biofilms can provide a framework for removal strategies for other foodborne pathogens. HIGHLIGHTS
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Affiliation(s)
- Xiaoning Huang
- Beijing Laboratory for Food Quality and Safety, College of Food Science and Nutritional Engineering, China Agricultural University, Beijing 100083, People's Republic of China
| | - Simin Tian
- Beijing Laboratory for Food Quality and Safety, College of Food Science and Nutritional Engineering, China Agricultural University, Beijing 100083, People's Republic of China
| | - Xiaoxue Chen
- Beijing Laboratory for Food Quality and Safety, College of Food Science and Nutritional Engineering, China Agricultural University, Beijing 100083, People's Republic of China
| | - Beizhong Han
- Beijing Laboratory for Food Quality and Safety, College of Food Science and Nutritional Engineering, China Agricultural University, Beijing 100083, People's Republic of China
| | - Yansong Xue
- Beijing Laboratory for Food Quality and Safety, College of Food Science and Nutritional Engineering, China Agricultural University, Beijing 100083, People's Republic of China
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Chen S, Wang Y. Response surface optimization of millet milk fermented by
Lactobacillus kefir. J FOOD PROCESS PRES 2022. [DOI: 10.1111/jfpp.16675] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Shujun Chen
- School of Life Science Shanxi University Taiyuan China
| | - Yue Wang
- School of Life Science Shanxi University Taiyuan China
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da Rosa CE, Pinilla CMB, Stincone P, Pereira JQ, Varela APM, Mayer FQ, Brandelli A. Genomic characterization and production of antimicrobial lipopeptides by Bacillus velezensis P45 growing on feather by-products. J Appl Microbiol 2021; 132:2067-2079. [PMID: 34811844 DOI: 10.1111/jam.15363] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/01/2021] [Revised: 08/02/2021] [Accepted: 11/10/2021] [Indexed: 11/26/2022]
Abstract
AIMS To investigate the potential of novel Bacillus velezensis P45 as an eco-friendly alternative for bioprocessing poultry by-products into valuable antimicrobial products. METHODS AND RESULTS The complete genome of B. velezensis P45 was sequenced using the Illumina MiSeq platform, showing 4455 protein and 98 RNA coding sequences according to the annotation on the RAST server. Moreover, the genome contains eight gene clusters for the production of antimicrobial secondary metabolites and 25 putative protease-related genes, which can be related to feather-degrading activity. Then, in vitro tests were performed to determine the production of antimicrobial compounds using feather, feather meal and brain-heart infusion (BHI) cultures. Antimicrobial activity was observed in feather meal and BHI media, reaching 800 and 3200 AU ml-1 against Listeria monocytogenes respectively. Mass spectrometry analysis indicates the production of antimicrobial lipopeptides surfactin, fengycin and iturin. CONCLUSIONS The biotechnological potential of B. velezensis P45 was deciphered through genome analysis and in vitro studies. This strain produced antimicrobial lipopeptides growing on feather meal, a low-cost substrate. SIGNIFICANCE AND IMPACT OF STUDY The production of antimicrobial peptides by this keratinolytic strain may represent a sustainable alternative for recycling by-products from poultry industry. Furthermore, whole B. velezensis P45 genome sequence was obtained and deposited.
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Affiliation(s)
- Carolini Esmeriz da Rosa
- Instituto de Ciência e Tecnologia de Alimentos, Universidade Federal do Rio Grande do Sul, Porto Alegre, Brazil
| | | | - Paolo Stincone
- Instituto de Ciência e Tecnologia de Alimentos, Universidade Federal do Rio Grande do Sul, Porto Alegre, Brazil
| | - Jamile Queiroz Pereira
- Instituto Federal de Educação, Ciência e Tecnologia Farroupilha, Frederico Westphalen, Brazil
| | - Ana Paula Muterle Varela
- Departamento de Diagnóstico e Pesquisa Agropecuária, Secretaria de Agricultura, Pecuária e Desenvolvimento Rural Centro de Pesquisa em Saúde Animal, Instituto de Pesquisas Veterinárias Desidério Finamor, Eldorado do Sul, Brazil
| | - Fabiana Quoos Mayer
- Departamento de Diagnóstico e Pesquisa Agropecuária, Secretaria de Agricultura, Pecuária e Desenvolvimento Rural Centro de Pesquisa em Saúde Animal, Instituto de Pesquisas Veterinárias Desidério Finamor, Eldorado do Sul, Brazil
| | - Adriano Brandelli
- Instituto de Ciência e Tecnologia de Alimentos, Universidade Federal do Rio Grande do Sul, Porto Alegre, Brazil
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Sharma A, Vashistt J, Shrivastava R. Response surface modeling integrated microtiter plate assay for Mycobacterium fortuitum biofilm quantification. BIOFOULING 2021; 37:830-843. [PMID: 34503352 DOI: 10.1080/08927014.2021.1974846] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/07/2021] [Revised: 08/24/2021] [Accepted: 08/26/2021] [Indexed: 06/13/2023]
Abstract
In this study, the effects of agitation, temperature, and pH on biofilm formation by Mycobacterium fortuitum were studied and quantified through response surface modeling. The microtiter plate assay was optimized to achieve conditions favoring maximum mycobacterial biofilm quantification. Optical density (OD) measurement using a crystal violet assay was performed to estimate the amount of biofilm formed. Response surface methodology (RSM) results revealed an R2 value of 96.18%, exhibiting a maximum OD of 2.119 (λ570 nm) at a temperature of 37 °C and pH 7.0, under a static environment. The conditions were experimentally validated. Statistically significant results showed that the maximum biofilm was produced 96 h after mycobacterial inoculation. Thus, the results provide a basis for using RSM as an efficient optimization method for M. fortuitum biofilm assays. This approach can also be incorporated into strategies for screening anti-biofilm compounds, synthetic chemicals, drugs, or inhibitors against pathogenic mycobacteria.
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Affiliation(s)
- Ayushi Sharma
- Department of Biotechnology & Bioinformatics, Jaypee University of Information Technology, Waknaghat, Solan (H.P.), India
| | - Jitendraa Vashistt
- Department of Biotechnology & Bioinformatics, Jaypee University of Information Technology, Waknaghat, Solan (H.P.), India
| | - Rahul Shrivastava
- Department of Biotechnology & Bioinformatics, Jaypee University of Information Technology, Waknaghat, Solan (H.P.), India
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Lee KH, Jang YW, Kim H, Ki JS, Yoo HY. Optimization of Lutein Recovery from Tetraselmis suecica by Response Surface Methodology. Biomolecules 2021; 11:182. [PMID: 33525716 PMCID: PMC7911107 DOI: 10.3390/biom11020182] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/18/2020] [Revised: 01/25/2021] [Accepted: 01/25/2021] [Indexed: 12/11/2022] Open
Abstract
Microalgae have been attracting attention as feedstock for biorefinery because they have various advantages, such as carbon fixation, high growth rate and high energy yield. The bioactive compounds and lutein contained in microalgae are known to be beneficial for human health, especially eye and brain health. In this study, in order to improve the recovery of bioactive extracts including lutein from Tetraselmis suecica with higher efficiency, an effective solvent was selected, and the extraction parameters such as temperature, time and solid loading were optimized by response surface methodology. The most effective solvent for lutein recovery was identified as 100% methanol, and the optimum condition was determined (42.4 °C, 4.0 h and 125 g/L biomass loading) by calculation of the multiple regression model. The maximum content of recovered lutein was found to be 2.79 mg/mL, and the ABTS radical scavenging activity (IC50) and ferric reducing antioxidant power (FRAP) value were about 3.36 mg/mL and 561.9 μmol/L, respectively. Finally, the maximum lutein recovery from T. suecica through statistical optimization was estimated to be 22.3 mg/g biomass, which was 3.1-fold improved compared to the control group.
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Affiliation(s)
| | | | | | - Jang-Seu Ki
- Department of Biotechnology, Sangmyung University, 20, Hongjimun, 2-Gil, Jongno-Gu, Seoul 03016, Korea; (K.H.L.); (Y.W.J.); (H.K.)
| | - Hah Young Yoo
- Department of Biotechnology, Sangmyung University, 20, Hongjimun, 2-Gil, Jongno-Gu, Seoul 03016, Korea; (K.H.L.); (Y.W.J.); (H.K.)
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Khan MM, Kim YK, Bilkis T, Suh JW, Lee DY, Yoo JC. Reduction of Oxidative Stress through Activating the Nrf2 mediated HO-1 Antioxidant Efficacy Signaling Pathway by MS15, an Antimicrobial Peptide from Bacillus velezensis. Antioxidants (Basel) 2020; 9:antiox9100934. [PMID: 33003432 PMCID: PMC7601265 DOI: 10.3390/antiox9100934] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/02/2020] [Revised: 09/26/2020] [Accepted: 09/27/2020] [Indexed: 01/06/2023] Open
Abstract
The efficient culture and purification of antimicrobial peptides (AMPs), along with intense antioxidant activity, have drawn the interest to study antioxidant activity mechanism. We report the culture conditions optimization, efficient biosynthesis, and purification of an antioxidant peptide MS15 from Bacillus velezensis obtained from fermented food that would generate heme oxygenase-1 (HO-1) expression and lead to nuclear factor erythroid 2-related factor-2 (Nrf2) nuclear translocation. We explored the ability of kinetics and potency for the bacterial killing to work against various pathogenic bacteria. A bioassay showed the lysis zone of MS15 by tricine SDS-PAGE near at 6 kDa. MALDI-TOF/MS verified molecular weight, and the existence of a molecular mass of 6091 Da was reported by purity. The MIC of MS15 ranged from 2.5-160 μg/mL for many pathogenic bacteria, showing greater potency. In macrophage RAW 264.7 cells, MS15 was exposed to assess its inhibitory effect against the generation of reactive oxygen species (ROS) in oxidative stress. In the sample treated group, the translation, and transcriptional levels of CAT (catalase), GPx (glutathione peroxidase), and SOD (superoxide dismutase) were significantly greater. In short, MS15 has significant antioxidant properties, reducing ROS production in RAW 264.7 cells, and raising the translation and transcriptional rates of antioxidant enzymes with stimulating HO-1 induction facilitated by Nrf2.
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Affiliation(s)
- Md Maruf Khan
- Department of Pharmacy, College of Pharmacy, Chosun University, Gwangju 501-759, Korea; (M.M.K.); (Y.K.K.)
| | - Young Kyun Kim
- Department of Pharmacy, College of Pharmacy, Chosun University, Gwangju 501-759, Korea; (M.M.K.); (Y.K.K.)
| | - Tahmina Bilkis
- Department of Biomedical Sciences, Chosun University, Gwangju 501-759, Korea;
| | - Joo-Won Suh
- Center for Nutraceutical and Pharmaceutical Materials, Myongji University, Myongji-ro 116, Cheoin-gu, Yongin 17058, Gyeonggi-Do, Korea;
| | - Dae Young Lee
- Department of Herbal Crop Research, National Institute of Horticultural and Herbal Science, RDA, Eumseong 27709, Korea;
| | - Jin Cheol Yoo
- Department of Pharmacy, College of Pharmacy, Chosun University, Gwangju 501-759, Korea; (M.M.K.); (Y.K.K.)
- Correspondence: ; Tel.: +82-62-230-6380
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