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Yang J, Punia Bangar S, Rizwan Khan M, Hammouda GA, Alam P, Zhang W. Biopolymer-based packaging films/edible coatings functionalized with ε-polylysine: New options for food preservation. Food Res Int 2024; 187:114390. [PMID: 38763652 DOI: 10.1016/j.foodres.2024.114390] [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: 12/05/2023] [Revised: 03/27/2024] [Accepted: 04/20/2024] [Indexed: 05/21/2024]
Abstract
In light of the commendable advantages inherent in natural polymers such as biocompatibility, biodegradability, and cost-effectiveness, researchers are actively engaged in the development of biopolymer-based biodegradable food packaging films (BFPF). However, a notable limitation is that most biopolymers lack intrinsic antimicrobial activity, thereby restricting their efficacy in food preservation. To address this challenge, various active substances with antibacterial properties have been explored as additives to BFPF. Among these, ε-polylysine has garnered significant attention in BFPF applications owing to its outstanding antibacterial properties. This study provides a brief overview of the synthesis method and chemical properties of ε-polylysine, and comprehensively examines its impact as an additive on the properties of BFPF derived from diverse biopolymers, including polysaccharides, proteins, aliphatic polyesters, etc. Furthermore, the practical applications of various BFPF functionalized with ε-polylysine in different food preservation scenarios are summarized. The findings underscore that ε-polylysine, functioning as an antibacterial agent, not only directly enhances the antimicrobial activity of BFPF but also serves as a cross-linking agent, interacting with biopolymer molecules to influence the physical and mechanical properties of BFPF, thereby enhancing their efficacy in food preservation.
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Affiliation(s)
- Jun Yang
- School of Food Science and Engineering, Hainan University, Haikou 570228, PR China
| | - Sneh Punia Bangar
- Department of Food, Nutrition and Packaging Sciences, Clemson University, Clemson, SC 29634, USA
| | - Mohammad Rizwan Khan
- Department of Chemistry, College of Science, King Saud University, Riyadh 11451, Saudi Arabia
| | - Gehan A Hammouda
- Department of Chemistry, College of Science and Humanities in Al-Kharj, Prince Sattam Bin Abdulaziz University, 11942, Saudi Arabia
| | - Pravej Alam
- Department of Biology, College of Science and Humanities in Al-Kharj, Prince Sattam Bin Abdulaziz University, 11942, Saudi Arabia
| | - Wanli Zhang
- School of Food Science and Engineering, Hainan University, Haikou 570228, PR China.
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Zhang C, Zhang Z, Cheng Y, Ni N, Tong S, Da W, Liu C, Diao Q, Chen Z, Xin B, Zeng H, Zeng X, Xu D. Transcriptional Analysis Revealing the Improvement of ε-Poly-L-lysine Production from Intracellular ROS Elevation after Botrytis cinerea Induction. J Fungi (Basel) 2024; 10:324. [PMID: 38786679 PMCID: PMC11122054 DOI: 10.3390/jof10050324] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/20/2024] [Revised: 04/16/2024] [Accepted: 04/27/2024] [Indexed: 05/25/2024] Open
Abstract
Gray mold, caused by Botrytis cinerea, poses significant threats to various crops, while it can be remarkably inhibited by ε-poly-L-lysine (ε-PL). A previous study found that B. cinerea extracts could stimulate the ε-PL biosynthesis of Streptomyces albulus, while it is unclear whether the impact of the B. cinerea signal on ε-PL biosynthesis is direct or indirect. This study evaluated the role of elevated reactive oxygen species (ROS) in efficient ε-PL biosynthesis after B. cinerea induction, and its underlying mechanism was disclosed with a transcriptome analysis. The microbial call from B. cinerea could arouse ROS elevation in cells, which fall in a proper level that positively influenced the ε-PL biosynthesis. A systematic transcriptional analysis revealed that this proper dose of intracellular ROS could induce a global transcriptional promotion on key pathways in ε-PL biosynthesis, including the embden-meyerhof-parnas pathway, the pentose phosphate pathway, the tricarboxylic acid cycle, the diaminopimelic acid pathway, ε-PL accumulation, cell respiration, and energy synthesis, in which sigma factor HrdD and the transcriptional regulators of TcrA, TetR, FurA, and MerR might be involved. In addition, the intracellular ROS elevation also resulted in a global modification of secondary metabolite biosynthesis, highlighting the secondary signaling role of intracellular ROS in ε-PL production. This work disclosed the transcriptional mechanism of efficient ε-PL production that resulted from an intracellular ROS elevation after B. cinerea elicitors' induction, which was of great significance in industrial ε-PL production as well as the biocontrol of gray mold disease.
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Affiliation(s)
- Chen Zhang
- Anhui Province Key Laboratory of Pollutant Sensitive Materials and Environmental Remediation, Huaibei Normal University, Huaibei 235000, China; (C.Z.); (Z.Z.); (Y.C.); (N.N.); (S.T.); (W.D.); (C.L.); (Q.D.); (Z.C.); (B.X.); (H.Z.)
- School of Life Sciences, Huaibei Normal University, Huaibei 235099, China
| | - Zhanyang Zhang
- Anhui Province Key Laboratory of Pollutant Sensitive Materials and Environmental Remediation, Huaibei Normal University, Huaibei 235000, China; (C.Z.); (Z.Z.); (Y.C.); (N.N.); (S.T.); (W.D.); (C.L.); (Q.D.); (Z.C.); (B.X.); (H.Z.)
- School of Life Sciences, Huaibei Normal University, Huaibei 235099, China
| | - Ya Cheng
- Anhui Province Key Laboratory of Pollutant Sensitive Materials and Environmental Remediation, Huaibei Normal University, Huaibei 235000, China; (C.Z.); (Z.Z.); (Y.C.); (N.N.); (S.T.); (W.D.); (C.L.); (Q.D.); (Z.C.); (B.X.); (H.Z.)
- School of Life Sciences, Huaibei Normal University, Huaibei 235099, China
| | - Ni Ni
- Anhui Province Key Laboratory of Pollutant Sensitive Materials and Environmental Remediation, Huaibei Normal University, Huaibei 235000, China; (C.Z.); (Z.Z.); (Y.C.); (N.N.); (S.T.); (W.D.); (C.L.); (Q.D.); (Z.C.); (B.X.); (H.Z.)
- School of Life Sciences, Huaibei Normal University, Huaibei 235099, China
| | - Siyu Tong
- Anhui Province Key Laboratory of Pollutant Sensitive Materials and Environmental Remediation, Huaibei Normal University, Huaibei 235000, China; (C.Z.); (Z.Z.); (Y.C.); (N.N.); (S.T.); (W.D.); (C.L.); (Q.D.); (Z.C.); (B.X.); (H.Z.)
- School of Life Sciences, Huaibei Normal University, Huaibei 235099, China
| | - Wangbao Da
- Anhui Province Key Laboratory of Pollutant Sensitive Materials and Environmental Remediation, Huaibei Normal University, Huaibei 235000, China; (C.Z.); (Z.Z.); (Y.C.); (N.N.); (S.T.); (W.D.); (C.L.); (Q.D.); (Z.C.); (B.X.); (H.Z.)
- School of Life Sciences, Huaibei Normal University, Huaibei 235099, China
| | - Chunyan Liu
- Anhui Province Key Laboratory of Pollutant Sensitive Materials and Environmental Remediation, Huaibei Normal University, Huaibei 235000, China; (C.Z.); (Z.Z.); (Y.C.); (N.N.); (S.T.); (W.D.); (C.L.); (Q.D.); (Z.C.); (B.X.); (H.Z.)
- School of Life Sciences, Huaibei Normal University, Huaibei 235099, China
| | - Qiran Diao
- Anhui Province Key Laboratory of Pollutant Sensitive Materials and Environmental Remediation, Huaibei Normal University, Huaibei 235000, China; (C.Z.); (Z.Z.); (Y.C.); (N.N.); (S.T.); (W.D.); (C.L.); (Q.D.); (Z.C.); (B.X.); (H.Z.)
- School of Life Sciences, Huaibei Normal University, Huaibei 235099, China
| | - Ziyan Chen
- Anhui Province Key Laboratory of Pollutant Sensitive Materials and Environmental Remediation, Huaibei Normal University, Huaibei 235000, China; (C.Z.); (Z.Z.); (Y.C.); (N.N.); (S.T.); (W.D.); (C.L.); (Q.D.); (Z.C.); (B.X.); (H.Z.)
- School of Life Sciences, Huaibei Normal University, Huaibei 235099, China
| | - Bingyue Xin
- Anhui Province Key Laboratory of Pollutant Sensitive Materials and Environmental Remediation, Huaibei Normal University, Huaibei 235000, China; (C.Z.); (Z.Z.); (Y.C.); (N.N.); (S.T.); (W.D.); (C.L.); (Q.D.); (Z.C.); (B.X.); (H.Z.)
- School of Life Sciences, Huaibei Normal University, Huaibei 235099, China
| | - Huawei Zeng
- Anhui Province Key Laboratory of Pollutant Sensitive Materials and Environmental Remediation, Huaibei Normal University, Huaibei 235000, China; (C.Z.); (Z.Z.); (Y.C.); (N.N.); (S.T.); (W.D.); (C.L.); (Q.D.); (Z.C.); (B.X.); (H.Z.)
- School of Life Sciences, Huaibei Normal University, Huaibei 235099, China
| | - Xin Zeng
- Anhui Province Key Laboratory of Pollutant Sensitive Materials and Environmental Remediation, Huaibei Normal University, Huaibei 235000, China; (C.Z.); (Z.Z.); (Y.C.); (N.N.); (S.T.); (W.D.); (C.L.); (Q.D.); (Z.C.); (B.X.); (H.Z.)
- School of Life Sciences, Huaibei Normal University, Huaibei 235099, China
| | - Dayong Xu
- Anhui Province Key Laboratory of Pollutant Sensitive Materials and Environmental Remediation, Huaibei Normal University, Huaibei 235000, China; (C.Z.); (Z.Z.); (Y.C.); (N.N.); (S.T.); (W.D.); (C.L.); (Q.D.); (Z.C.); (B.X.); (H.Z.)
- School of Life Sciences, Huaibei Normal University, Huaibei 235099, China
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Zhou J, Wan Y, Cohen Stuart MA, Wang M, Wang J. Effects of Control Factors on Protein-Polyelectrolyte Complex Coacervation. Biomacromolecules 2023; 24:5759-5768. [PMID: 37955264 DOI: 10.1021/acs.biomac.3c00717] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2023]
Abstract
Protein-polyelectrolyte complex coacervation is of particular interest for mimicking intracellular phase separation and organization. Yet, the challenge arises from regulating the coacervation due to the globular structure and anisotropic distributed charges of protein. Herein, we fully investigate the different control factors and reveal their effects on protein-polyelectrolyte coacervation. We prepared mixtures of BSA (bovine serum albumin) with different cationic polymers, which include linear and branched polyelectrolytes covering different spacer and charge groups, chain lengths, and polymer structures. With BSA-PDMAEMA [poly(N,N-dimethylaminomethyl methacrylate)] as the main investigated pair, we find that the moderate pH and ionic strength are essential for the adequate electrostatic interaction and formation of coacervate droplets. For most BSA-polymer mixtures, excess polyelectrolytes are required to achieve the full complexation, as evidenced by the deviated optimal charge mixing ratios from the charge stoichiometry. Polymers with longer chains or primary amine groups and a branched structure endow a strong electrostatic interaction with BSA and cause a bigger charge ratio deviation associated with the formation of solid-like coacervate complexes. Nevertheless, both the liquid- and solid-like coacervates hardly interrupt the BSA structure and activity, indicating the safe encapsulation of proteins by the coacervation with polyelectrolytes. Our study validates the crucial control of the diverse factors in regulating protein-polyelectrolyte coacervation, and the revealed principles shall be instructive for establishing other protein-based coacervations and boosting their potential applications.
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Affiliation(s)
- Jin Zhou
- State-Key Laboratory of Chemical Engineering, and Shanghai Key Laboratory of Multiphase Materials Chemical Engineering, East China University of Science and Technology, 130 Meilong Road, 200237, Shanghai, People's Republic of China
| | - Yuting Wan
- State-Key Laboratory of Chemical Engineering, and Shanghai Key Laboratory of Multiphase Materials Chemical Engineering, East China University of Science and Technology, 130 Meilong Road, 200237, Shanghai, People's Republic of China
| | - Martien A Cohen Stuart
- State-Key Laboratory of Chemical Engineering, and Shanghai Key Laboratory of Multiphase Materials Chemical Engineering, East China University of Science and Technology, 130 Meilong Road, 200237, Shanghai, People's Republic of China
| | - Mingwei Wang
- State-Key Laboratory of Chemical Engineering, and Shanghai Key Laboratory of Multiphase Materials Chemical Engineering, East China University of Science and Technology, 130 Meilong Road, 200237, Shanghai, People's Republic of China
| | - Junyou Wang
- State-Key Laboratory of Chemical Engineering, and Shanghai Key Laboratory of Multiphase Materials Chemical Engineering, East China University of Science and Technology, 130 Meilong Road, 200237, Shanghai, People's Republic of China
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Mansur AAP, Carvalho SC, Dorneles EMS, Lage AP, Lobato ZIP, Mansur HS. Bio-functionalized nanocolloids of ZnS quantum dot/amine-rich polypeptides for bioimaging cancer cells with antibacterial activity: " seeing is believing". RSC Adv 2023; 13:34378-34390. [PMID: 38024978 PMCID: PMC10665648 DOI: 10.1039/d3ra06711d] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/02/2023] [Accepted: 11/19/2023] [Indexed: 12/01/2023] Open
Abstract
Among almost 200 types of cancers, glioma is considered one of the most common forms of malignant tumors located in the central nervous system (CNS). Glioblastoma (GBM), one of the deadliest types of brain cancer, remains one of the challenges faced by oncologists. Thus, smartly designed nanomaterials biofunctionalized with polypeptides can offer disruptive strategies relying on the earliest possible diagnosis ("seeing is believing") combined with more efficient therapies for fighting cancer cells. To worsen this scenario, bacteria infections very often pose a serious challenge to cancer-immunodeficient patients under chemotherapy. Thus, in this research, we report for the first time the design and synthesis of novel nanoconjugates composed of photoluminescent ZnS quantum dots (ZnS QDs), which were directly surface biofunctionalized with epsilon-poly-l-lysine (εPL), acting as an amine-rich cell-penetrating peptide (CPP) and antimicrobial peptide agent (AMP). These nanoconjugates (named ZnS@CPP-AMP) were produced through a one-step facile, eco-friendly, and biocompatible colloidal aqueous process to be applied as a proof of concept as nanoprobes for bioimaging GBM cancer cells (U87-MG) associated with synergic antibacterial activity. They were characterized regarding their physicochemical and optical properties associated with the biological activity. The results demonstrated that chemically stable aqueous colloidal nanoconjugates were effectively formed, resembling core-shell (inorganic, ZnS, organic, εPL) nanostructures with positively surface-charged features due to the cationic nature of the amine-rich polypeptide. More importantly, they demonstrated photoluminescent activity, cytocompatibility in vitro, and no significant intracellular reactive oxygen species (ROS) generation. These ZnS@CPP-AMP nanocolloids behaved as fluorescent nanoprobes for bioimaging GBM cancer cells, where the polycationic nature of the εPL biomolecule may have enhanced the cellular uptake. Additionally, they displayed mild antibacterial growth inhibition due to electrostatic interactions with bacterial membranes. Thus, it can be envisioned that these novel photoluminescent colloidal nanoconjugates offer novel nanoplatforms that can be specifically targeted with biomolecules for bioimaging to diagnose highly lethal cancers, such as GBM, and as an adjuvant in antibacterial therapy.
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Affiliation(s)
- Alexandra A P Mansur
- Department of Metallurgical and Materials Engineering, Center of Nanoscience, Nanotechnology, and Innovation-CeNano2I, Federal University of Minas Gerais, UFMG Av. Antônio Carlos, 6627 - Escola de Engenharia, Bloco 2 - Sala 2233 31.270-901 Belo Horizonte MG Brazil +55-31-34091843 +55-31-34091843
| | - Sandhra C Carvalho
- Department of Metallurgical and Materials Engineering, Center of Nanoscience, Nanotechnology, and Innovation-CeNano2I, Federal University of Minas Gerais, UFMG Av. Antônio Carlos, 6627 - Escola de Engenharia, Bloco 2 - Sala 2233 31.270-901 Belo Horizonte MG Brazil +55-31-34091843 +55-31-34091843
| | - Elaine M S Dorneles
- Departamento de Medicina Veterinária, Universidade Federal de Lavras, UFLA Brazil
| | - Andrey P Lage
- Departamento de Medicina Veterinária Preventiva, Federal University of Minas Gerais, UFMG Brazil
| | - Zelia I P Lobato
- Departamento de Medicina Veterinária Preventiva, Federal University of Minas Gerais, UFMG Brazil
| | - Herman S Mansur
- Department of Metallurgical and Materials Engineering, Center of Nanoscience, Nanotechnology, and Innovation-CeNano2I, Federal University of Minas Gerais, UFMG Av. Antônio Carlos, 6627 - Escola de Engenharia, Bloco 2 - Sala 2233 31.270-901 Belo Horizonte MG Brazil +55-31-34091843 +55-31-34091843
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Zhou X, Guan C, Ma Q, Lan T, Lin Q, Zhou W, Liu C. Elaboration and characterization of ε-polylysine‑sodium alginate nanoparticles for sustained antimicrobial activity. Int J Biol Macromol 2023; 251:126329. [PMID: 37595718 DOI: 10.1016/j.ijbiomac.2023.126329] [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: 06/19/2023] [Revised: 08/10/2023] [Accepted: 08/11/2023] [Indexed: 08/20/2023]
Abstract
The ε-polylysine (ε-PL) is a food-grade antimicrobial substance. The cationic ε-PL molecules may interact with anionic components of food matrix causing turbidity, sedimentation, and hampering the antimicrobial activity. Herein, sodium alginate (SA) was used as wall material to encapsulate ε-PL, thereby to synthesize ε-PL-SA nanoparticles (ε-PL-SA-NPs). Monosaccharide composition and molecular weight of SA were characterized. The synthetic scheme is optimized and physicochemical characteristics and antimicrobial potential was investigated. Findings indicate that SA primarily consisted of mannuronic acid (95.25 %), weight average molecular weight (Mw) of SA was 176.464 kDa, and the molecular configuration of SA was irregular line clusters. The encapsulation efficiency (EE) of ε-PL in ε-PL-SA-NPs made under optimum strategy (at pH 6.0, mass ratio of ε-PL to SA is 0.14, and SA concentration is 6 mg/mL) is about 99.74 %. The particle size of ε-PL-SA-NPs is ∼541.86 nm. The SEM image showed that the ε-PL-SA-NPs had a nearly spherical morphology. Zeta-potential and FTIR data reveal the interaction between ε-PL and SA was electrostatic and the hydrogen bonding. Agar diffusion assay exhibit that ε-PL-SA-NPs had antimicrobial activity against Escherichia coli and Staphylococcus aureus. The salmon preservation experiments reveal sustained antimicrobial efficacy of ε-PL-SA-NPs.
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Affiliation(s)
- Xiaojie Zhou
- National Engineering Research Center for Rice and By-product Deep Processing, School of Food Science and Engineering, Central South University of Forestry and Technology, Changsha 410004, China; Hunan Provincial Key Laboratory of Soybean Products Processing and Safety Control, College of Food and Chemical Engineering, Shaoyang University, Shaoyang 422099, China
| | - Chunmin Guan
- National Engineering Research Center for Rice and By-product Deep Processing, School of Food Science and Engineering, Central South University of Forestry and Technology, Changsha 410004, China
| | - Qianqian Ma
- National Engineering Research Center for Rice and By-product Deep Processing, School of Food Science and Engineering, Central South University of Forestry and Technology, Changsha 410004, China
| | - Tianqing Lan
- National Engineering Research Center for Rice and By-product Deep Processing, School of Food Science and Engineering, Central South University of Forestry and Technology, Changsha 410004, China
| | - Qinlu Lin
- National Engineering Research Center for Rice and By-product Deep Processing, School of Food Science and Engineering, Central South University of Forestry and Technology, Changsha 410004, China
| | - Wenhua Zhou
- National Engineering Research Center for Rice and By-product Deep Processing, School of Food Science and Engineering, Central South University of Forestry and Technology, Changsha 410004, China
| | - Chun Liu
- National Engineering Research Center for Rice and By-product Deep Processing, School of Food Science and Engineering, Central South University of Forestry and Technology, Changsha 410004, China.
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Mansur AAP, Custódio DAC, Dorneles EMS, Coura FM, Carvalho IC, Lage AP, Mansur HS. Nanoplexes of ZnS quantum dot-poly-l-lysine/iron oxide nanoparticle-carboxymethylcellulose for photocatalytic degradation of dyes and antibacterial activity in wastewater treatment. Int J Biol Macromol 2023; 231:123363. [PMID: 36690232 DOI: 10.1016/j.ijbiomac.2023.123363] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/15/2022] [Revised: 01/10/2023] [Accepted: 01/17/2023] [Indexed: 01/22/2023]
Abstract
The contamination and pollution of wastewater with a wide diversity of chemical, microbiological, and hazardous substances is a field of raising environmental concern. In this study, we developed, for the first time, new hybrid multifunctional nanoplexes composed of ZnS semiconductor quantum dots (ZnS QDs) chemically biofunctionalized with epsilon-poly-l-lysine (ɛPL) and coupled with magnetic iron oxide nanoparticles (MION, Fe3O4) stabilized by carboxymethylcellulose (CMC) for the photodegradation (ZnS) of organic molecules and antibacterial activity (ɛPL) with a potential of recovery by an external magnetic field (Fe3O4). These nanosystems, which were synthesized entirely through a green aqueous process, were comprehensively characterized regarding their physicochemical properties combined with spectroscopic and morphological features. The results demonstrated that supramolecular colloidal nanoplexes were formed owing to the strong cationic/anionic electrostatic interactions between the biomacromolecule capping ligands of the two nanoconjugates (i.e., polypeptide in ZnS@ɛPL and polysaccharide in Fe3O4@CMC). Moreover, these nanosystems showed photocatalytic degradation of methylene blue (MB) used as a model dye pollutant in water. Besides MB, methyl orange, congo red, and rhodamine dyes were also tested for selectivity investigation of the photodegradation by the nanoplexes. The antibacterial activity ascribed to the ɛPL biomolecule was confirmed against Gram-positive and Gram-negative bacteria, including drug-resistance field strains. Hence, it is envisioned that these novel green nanoplexes offer a new avenue of alternatives to be employed for reducing organic pollutants and inactivating pathogenic bacteria in water and wastewater treatment, benefiting from easy magnetic recovery.
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Affiliation(s)
- Alexandra A P Mansur
- Center of Nanoscience, Nanotechnology, and Innovation - CeNano(2)I, Department of Metallurgical and Materials Engineering, Federal University of Minas Gerais, UFMG, Brazil
| | - Dircéia A C Custódio
- Departamento de Medicina Veterinária, Universidade Federal de Lavras, UFLA, Brazil
| | - Elaine M S Dorneles
- Departamento de Medicina Veterinária, Universidade Federal de Lavras, UFLA, Brazil
| | - Fernanda M Coura
- Instituto Federal de Educação, Ciência e Tecnologia de Minas Gerais - Campus Bambuí, IFMG, Brazil
| | - Isadora C Carvalho
- Center of Nanoscience, Nanotechnology, and Innovation - CeNano(2)I, Department of Metallurgical and Materials Engineering, Federal University of Minas Gerais, UFMG, Brazil
| | - Andrey P Lage
- Departamento de Medicina Veterinária Preventiva, Federal University of Minas Gerais, UFMG, Brazil
| | - Herman S Mansur
- Center of Nanoscience, Nanotechnology, and Innovation - CeNano(2)I, Department of Metallurgical and Materials Engineering, Federal University of Minas Gerais, UFMG, Brazil.
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Preparation of PLGA/ε-polylysine nanofibers and their application for pork preservation. Food Packag Shelf Life 2023. [DOI: 10.1016/j.fpsl.2023.101031] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/12/2023]
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Antimicrobial activity and mechanism of preservatives against Alicyclobacillus acidoterrestris and its application in apple juice. Int J Food Microbiol 2023; 386:110039. [PMID: 36473316 DOI: 10.1016/j.ijfoodmicro.2022.110039] [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: 09/04/2022] [Revised: 11/21/2022] [Accepted: 11/24/2022] [Indexed: 11/30/2022]
Abstract
Alicyclobacillus acidoterrestris has great influence on the quality of apple juice products. In this study, the antibacterial activity of five preservatives (ε-polylysine, propylparaben, monocaprin, octyl gallate and heptylparaben) against A. acidoterrestris and its underlying mechanism were investigated. Results showed that these five preservatives all exerted antibacterial activity through a multiple bactericidal mechanism, and monocaprin and octyl gallate had the highest antibacterial activity, with the minimum inhibitory concentration (MIC) values of 22.5 and 6.25 mg/L, respectively. Five preservatives all changed the permeability of the cell membrane and destroyed the complete cell morphology, with the leakages of the intracellular electrolytes. Moreover, the treatment of ε-polylysine, propylparaben and monocaprin increased the leakage of intracellular protein; propylparaben and octyl gallate reduced the levels of cellular adenosine triphosphate. Also, monocaprin and octyl gallate may stimulate bacteria to release a large amount of reactive oxygen species, so that certain oxidative damage can kill the bacteria. Furthermore, monocaprin and octyl gallate could effectively inactivate the contamination of A. acidoterrestris in apple juices, with the slightly decrease of soluble sugars and organic acids, without significant adverse effects on total sugars and titratable acids. This research highlights the great promise of using monocaprin and octyl gallate as the safe multi-functionalized food additives for food preservations.
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Ma J, Wang C, Yin T, Jiang Y, Yu W, Zhang X, Qin Q, Yang H, Zhang D. Preparation and in Vitro Property Research of Cholic Acid Nanoparticles with Dual-functions of Hemostasis and Antibacterial. IRANIAN JOURNAL OF PHARMACEUTICAL RESEARCH : IJPR 2023; 22:e135437. [PMID: 38444709 PMCID: PMC10912859 DOI: 10.5812/ijpr-135437] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 02/05/2023] [Revised: 08/19/2023] [Accepted: 09/17/2023] [Indexed: 03/07/2024]
Abstract
Background Hemorrhage control and anti-infection play a crucial role in promoting wound healing in trauma-related injuries. Objectives This study aimed to prepare nanoparticles with dual functions of hemostasis and antibacterial properties. Methods The dual-functional nanoparticles (CDCA-PLL NPs) were developed using a self-assembly method based on the electrostatic forces between poly-L-lysine (PLL) and Chenodeoxycholic acid (CDCA). The physicochemical properties, hemostatic properties, and antibacterial activities were investigated. Results The prepared nanoparticles displayed a spherical structure, exhibiting a high drug loading capacity, encapsulation efficiency, and good stability. The CDCA-PLL NPs could reduce the hemolysis caused by PLL and promote the proliferation of human fibroblasts, indicating excellent biosafety. Moreover, CDCA-PLL NPs demonstrated a shorter in vivo hemostasis time and reduced blood loss in mouse tail vein hemorrhage, femoral vein hemorrhage, femoral artery hemorrhage, and liver hemorrhage models. Also, CDCA-PLL NPs showed excellent antibacterial efficacy against E. coli and S. aureus. Conclusions CDCA-PLL NPs have great potential to be extensively applied as a hemostatic and antibacterial agent in various clinical conditions.
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Affiliation(s)
- Jin Ma
- Department of Radiology, Chongqing Traditional Chinese Medicine Hospital, Chongqing, China
| | - Cong Wang
- Department of Ultrasonics, Chongqing Health Center for Women and Children, Women and Children's Hospital of Chongqing Medical University, Chongqing, China
| | - Tieying Yin
- Key Laboratory for Biorheological Science and Technology of Ministry of Education, State and Local Joint Engineering Laboratory for Vascular Implants, Bioengineering College of Chongqing University, Chongqing, China
| | - Yang Jiang
- Department of Radiology, Chongqing Traditional Chinese Medicine Hospital, Chongqing, China
| | - Wanjun Yu
- Department of Radiology, Chongqing Traditional Chinese Medicine Hospital, Chongqing, China
| | - Xiaoyu Zhang
- Department of Radiology, Chongqing Traditional Chinese Medicine Hospital, Chongqing, China
| | - Qin Qin
- Department of Radiology, Chongqing Traditional Chinese Medicine Hospital, Chongqing, China
| | - Hua Yang
- Department of Radiology, Chongqing Traditional Chinese Medicine Hospital, Chongqing, China
| | - Dechuan Zhang
- Department of Radiology, Chongqing Traditional Chinese Medicine Hospital, Chongqing, China
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Meng Y, Lou L, Shao Z, Chen J, Li Y, Zhang T. Antibacterial Activity and Mechanism of Action of Whey Protein-ε-Polylysine Complexes against Staphylococcus aureus and Bacillus subtilis. Foods 2022; 11:foods11152311. [PMID: 35954078 PMCID: PMC9367709 DOI: 10.3390/foods11152311] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/26/2022] [Revised: 07/23/2022] [Accepted: 07/27/2022] [Indexed: 12/01/2022] Open
Abstract
ε-Polylysine (ε-PL) is a cationic antimicrobial peptide, which easily forms complexes with food polyanions to weaken its antibacterial activity. A whey protein-ε-PL complex delivery system was found to be able to solve this problem. This study investigated the antimicrobial activity of the complexes and their mechanism against Gram-positive bacteria. The minimal inhibitory concentration of the complexes with different ε-PL contents against Staphylococcus aureus and Bacillus subtilis were 19.53–31.26 and 3.90–7.81 μg/mL, respectively, which were similar to free ε-PL. Furthermore, the whey protein-ε-PL complexes had a strong bactericidal effect on Bacillus subtilis. The inhibition zone diameters of the complexes against Staphylococcus aureus and Bacillus subtilis containing 5000 μg/mL of ε-PL were 14.14 and 16.69 mm, respectively. The results of scanning electron microscopy showed that the complexes could destroy the cell membrane structure in Bacillussubtilis, resulting in holes on the surface, but not in Staphylococcus aureus. The results of molecular dynamics simulation showed that under electrostatic interaction, the complexes captured the phospholipid molecules of the bacterial membrane through the hydrogen bonds. Parts of the ε-PL molecules of the complexes were embedded in the bilayer membrane, and parts of the ε-PL molecules could penetrate the bilayer membrane and enter the bacterial internal environment, forming holes on the surface of the bacteria. The antibacterial results in fresh meat showed that the whey protein-ε-PL complexes could reduce the total mesophilic and Staphylococcus aureus counts. This study on the antibacterial activity mechanism of whey protein-ε-PL complexes could provide a reference for the application of ε-PL in protein food matrices.
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Affiliation(s)
- Yuecheng Meng
- School of Food Science and Biotechnology, Zhejiang Gongshang University, Hangzhou 310018, China; (Y.M.); (L.L.); (J.C.); (T.Z.)
| | - Li Lou
- School of Food Science and Biotechnology, Zhejiang Gongshang University, Hangzhou 310018, China; (Y.M.); (L.L.); (J.C.); (T.Z.)
| | - Zhipeng Shao
- Research and Development Center, Wuxi Biortus Biosciences Co., Ltd., Jiangyin 214437, China;
| | - Jie Chen
- School of Food Science and Biotechnology, Zhejiang Gongshang University, Hangzhou 310018, China; (Y.M.); (L.L.); (J.C.); (T.Z.)
| | - Yanhua Li
- School of Food Science and Biotechnology, Zhejiang Gongshang University, Hangzhou 310018, China; (Y.M.); (L.L.); (J.C.); (T.Z.)
- Correspondence: ; Tel.: +86-158-6912-2579
| | - Tianqi Zhang
- School of Food Science and Biotechnology, Zhejiang Gongshang University, Hangzhou 310018, China; (Y.M.); (L.L.); (J.C.); (T.Z.)
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11
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Shahbazi M, Jäger H, Ettelaie R. Dual-Grafting of Microcrystalline Cellulose by Tea Polyphenols and Cationic ε-Polylysine to Tailor a Structured Antimicrobial Soy-Based Emulsion for 3D Printing. ACS APPLIED MATERIALS & INTERFACES 2022; 14:21392-21405. [PMID: 35476424 PMCID: PMC9100494 DOI: 10.1021/acsami.1c19430] [Citation(s) in RCA: 13] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/13/2021] [Accepted: 04/12/2022] [Indexed: 06/02/2023]
Abstract
An imperative processing way to produce 3D printed structures with enhanced multifunctional properties is printing inks in the form of a gel-like colloidal emulsion. The surface-modified microcrystalline cellulose (MCC) is an excipient of outstanding merit as a particulate emulsifier to manufacture a stable Pickering emulsion gel. The tuning of the MCC structure by cationic antimicrobial compounds, such as ε-polylysine (ε-PL), can offer a surface activity with an antimicrobial effect. However, the MCC/ε-PL lacks the appropriate emulsifying ability due to the development of electrostatic complexes. To overcome this challenge, (i) a surface-active MCC conjugate was synthesized by a sustainable dual-grafting technique (ii) to produce a highly stable therapeutic soy-based Pickering emulsion gel (iii) for potential application in 3D printing. In this regard, the tea polyphenols were initially introduced into MCC by the free-radical grafting method to decrease the charge density of anionic MCC. Then, the antioxidative MCC-g-tea polyphenols were reacted by ε-PL to produce a dual-grafted therapeutic MCC conjugate (micro-biosurfactant), stabilizing the soy-based emulsion system. The results indicated that the dual-grafted micro-biosurfactant formed a viscoelastic and thixotropic soy-based emulsion gel with reduced droplet size and long-term stability. Besides, there was an improvement in the interfacial adsorption features of soy-protein particles after micro-biosurfactant incorporation, where the interfacial pressure and surface dilatational viscoelastic moduli were enhanced. Consequently, it was revealed that the therapeutic Pickering emulsion gel was more suitable to manufacture a well-defined 3D architecture with high resolution and retained permanent deformation after unloading (i.e., a recoverable matrix). This work established that the modification of the MCC backbone by tea polyphenols and ε-PL advances its bioactive properties and emulsifying performance, which finally obtains a soy-based 3D printed structure with noteworthy mechanical strength.
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Affiliation(s)
- Mahdiyar Shahbazi
- Institute
of Food Technology, University of Natural
Resources and Life Sciences (BOKU), Muthgasse 18, Vienna 1190, Austria
| | - Henry Jäger
- Institute
of Food Technology, University of Natural
Resources and Life Sciences (BOKU), Muthgasse 18, Vienna 1190, Austria
| | - Rammile Ettelaie
- Food
Colloids and Bioprocessing Group, School of Food Science and Nutrition, University of Leeds, Leeds LS2 9JT, U.K.
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12
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Lv Z, Lu Y, Li B, Shi L, Zhang K, Ge B. Effects of ε-Poly-L-Lysine Combined with Wuyiencin as a Bio-Fungicide against Botryris cinerea. Microorganisms 2022; 10:microorganisms10050971. [PMID: 35630418 PMCID: PMC9146948 DOI: 10.3390/microorganisms10050971] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/13/2022] [Revised: 04/28/2022] [Accepted: 05/03/2022] [Indexed: 11/27/2022] Open
Abstract
This study mainly evaluated the broad-spectrum fungicidal activity of ε-poly L lysine (ε-PL) against 12 pathogenic fungi. We further demonstrated synergistic antifungal activity of ε-PL combined with wuyiencin against Botryris cinerea. The combined bio-fungicide achieved an inhibition rate of 100% for mycelial growth using ε-PL at 500 μg/mL + wuyiencin at 50 μg/mL and for spore germination using ε-PL at 200 μg/mL + wuyiencin at 80 μg/mL in vitro. This synergistic spore and mycelia-damaging effect of the combination was confirmed using scanning electron microscopy. In vivo assays with combined bio-fungicide (1500 μg/mL ε-PL + 60 μg/mL wuyiencin) on detached leaves showed depressed growth and development of the spores of B. cinerea. The synergistic effect was further tested in combinations of ε-PL with wuyiencin by measuring the fractional inhibition concentration index (FICI) value below 0.5. Moreover, ε-PL and wuyiencin inoculation before B. cinerea infection significantly increased the superoxide dismutase, peroxidase, catalase, and phenylalanine ammonia-lyase activities, which suggested their involvement in tomato defense responses to disease to minimize damage to B. cinerea. These findings revealed that a combined bio-fungicide comprising ε-PL and wuyiencin had a good prospect for controlling plant fungal disease.
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Affiliation(s)
- Zhaoyang Lv
- Institute of Plant Protection, Chinese Academy of Agricultural Sciences, Yuanmingyuan West Road, No. 2, Haidian District, Beijing 100193, China; (Z.L.); (Y.L.); (B.L.); (L.S.); (K.Z.)
| | - Yanxuan Lu
- Institute of Plant Protection, Chinese Academy of Agricultural Sciences, Yuanmingyuan West Road, No. 2, Haidian District, Beijing 100193, China; (Z.L.); (Y.L.); (B.L.); (L.S.); (K.Z.)
- College of Forestry, Hebei Agricultural University, Lingyusi Street, No. 289, Baoding 071001, China
| | - Boya Li
- Institute of Plant Protection, Chinese Academy of Agricultural Sciences, Yuanmingyuan West Road, No. 2, Haidian District, Beijing 100193, China; (Z.L.); (Y.L.); (B.L.); (L.S.); (K.Z.)
- College of Forestry, Hebei Agricultural University, Lingyusi Street, No. 289, Baoding 071001, China
| | - Liming Shi
- Institute of Plant Protection, Chinese Academy of Agricultural Sciences, Yuanmingyuan West Road, No. 2, Haidian District, Beijing 100193, China; (Z.L.); (Y.L.); (B.L.); (L.S.); (K.Z.)
| | - Kecheng Zhang
- Institute of Plant Protection, Chinese Academy of Agricultural Sciences, Yuanmingyuan West Road, No. 2, Haidian District, Beijing 100193, China; (Z.L.); (Y.L.); (B.L.); (L.S.); (K.Z.)
| | - Beibei Ge
- Institute of Plant Protection, Chinese Academy of Agricultural Sciences, Yuanmingyuan West Road, No. 2, Haidian District, Beijing 100193, China; (Z.L.); (Y.L.); (B.L.); (L.S.); (K.Z.)
- Correspondence: ; Tel.: +86-10-62812640; Fax: +86-10-62815942
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13
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Guo L, Chen J, Fang S, Li YH, Song YC, Meng YC. Effect of protein topology on hierarchical complexation of epsilon-polylysine and protein: A multiscale structural analysis. Food Hydrocoll 2022. [DOI: 10.1016/j.foodhyd.2021.107431] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
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14
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Meng Y, Xue Q, Chen J, Li Y, Shao Z. Structure, stability, rheology, and texture properties of ε-polylysine-whey protein complexes. J Dairy Sci 2022; 105:3746-3757. [DOI: 10.3168/jds.2021-21219] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/30/2021] [Accepted: 01/22/2022] [Indexed: 01/13/2023]
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15
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Chang SL, Zhao QS, Li H, Wang XD, Wang LW, Zhao B. Effect of pectin on epsilon-polylysine purification: Study on preparation, physicochemical property, and bioactivity of pectin-epsilon-polylysine complex. Food Hydrocoll 2022. [DOI: 10.1016/j.foodhyd.2021.107314] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2022]
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16
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Singh RD, Kapila S, Ganesan NG, Rangarajan V. A review on green nanoemulsions for cosmetic applications with special emphasis on microbial surfactants as impending emulsifying agents. J SURFACTANTS DETERG 2022. [DOI: 10.1002/jsde.12571] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/14/2023]
Affiliation(s)
- Rishi Devendra Singh
- Department of Chemical Engineering Birla Institute of Technology and Science‐Pilani, K.K. Birla Goa Campus Zuarinagar Goa India
| | - Shreya Kapila
- Department of Chemical Engineering Birla Institute of Technology and Science‐Pilani, K.K. Birla Goa Campus Zuarinagar Goa India
| | - Neela Gayathri Ganesan
- Department of Chemical Engineering Birla Institute of Technology and Science‐Pilani, K.K. Birla Goa Campus Zuarinagar Goa India
| | - Vivek Rangarajan
- Department of Chemical Engineering Birla Institute of Technology and Science‐Pilani, K.K. Birla Goa Campus Zuarinagar Goa India
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Guo J, Cao G, Wang X, Tang W, Diwu W, Yan M, Yang M, Bi L, Han Y. Coating CoCrMo Alloy with Graphene Oxide and ε-Poly-L-Lysine Enhances Its Antibacterial and Antibiofilm Properties. Int J Nanomedicine 2021; 16:7249-7268. [PMID: 34737563 PMCID: PMC8560011 DOI: 10.2147/ijn.s321800] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/25/2021] [Accepted: 10/04/2021] [Indexed: 01/02/2023] Open
Abstract
INTRODUCTION With increases in implant infections, the search for antibacterial and biofilm coatings has become a new interest for orthopaedists and dentists. In recent years, graphene oxide (GO) has been extensively studied for its superior antibacterial properties. However, most of these studies have focused on solutions and there are few antibacterial studies on metal surfaces, especially the surfaces of cobalt-chromium-molybdenum (CoCrMo) alloys. ε-Poly-L-lysine (ε-PLL), as a novel food preservative, has a spectrum of antimicrobial activity; however, its antimicrobial activity after coating an implant surface is not clear. METHODS In this study, for the first time, a two-step electrodeposition method was used to coat GO and ε-PLL on the surface of a CoCrMo alloy. Its antibacterial and antibiofilm properties against S. aureus and E. coli were then studied. RESULTS The results show that the formation of bacteria and biofilms on the coating surface was significantly inhibited, GO and ε-PLL composite coatings had the best antibacterial and antibiofilm effects, followed by ε-PLL and GO coatings. In terms of classification, the coatings are anti-adhesive and contact-killing/inhibitory surfaces. In addition to oxidative stress, physical damage to GO and electrostatic osmosis of ε-PLL are the main antibacterial and antibiofilm mechanisms. DISCUSSION This is the first study that GO and ε-PLL coatings were successfully prepared on the surface of CoCrMo alloy by electrodeposition. It provides a promising new approach to the problem of implant infection in orthopedics and stomatology.
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Affiliation(s)
- Jianbin Guo
- Department of Orthopedics, The First Affiliated Hospital of Air Force Military Medical University, Xi’an, People’s Republic of China
- Department of Joint Surgery, Hong-Hui Hospital, Xi’an Jiaotong University College of Medicine, Xi’an, People’s Republic of China
| | - Guihua Cao
- Department of Geriatrics, The First Affiliated Hospital of Air Force Military Medical University, Xi’an, People’s Republic of China
| | - Xing Wang
- Department of Orthopedics, The First Affiliated Hospital of Air Force Military Medical University, Xi’an, People’s Republic of China
| | - Wenhao Tang
- Department of Orthopedics, The First Affiliated Hospital of Air Force Military Medical University, Xi’an, People’s Republic of China
| | - Weilong Diwu
- Department of Orthopedics, The First Affiliated Hospital of Air Force Military Medical University, Xi’an, People’s Republic of China
| | - Ming Yan
- Department of Orthopedics, The First Affiliated Hospital of Air Force Military Medical University, Xi’an, People’s Republic of China
| | - Min Yang
- Department of Orthopedics, The First Affiliated Hospital of Air Force Military Medical University, Xi’an, People’s Republic of China
| | - Long Bi
- Department of Orthopedics, The First Affiliated Hospital of Air Force Military Medical University, Xi’an, People’s Republic of China
| | - Yisheng Han
- Department of Orthopedics, The First Affiliated Hospital of Air Force Military Medical University, Xi’an, People’s Republic of China
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18
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Naassaoui I, Aschi A. Influence of temperature and salt on coacervation in an aqueous mixture of poly-L-lysine (PLL) and poly-(sodium styrene sulfonate) (PSSNa). EUROPEAN BIOPHYSICS JOURNAL : EBJ 2021; 50:877-887. [PMID: 34047804 DOI: 10.1007/s00249-021-01542-4] [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: 05/02/2020] [Revised: 01/20/2021] [Accepted: 04/19/2021] [Indexed: 11/25/2022]
Abstract
The mixture of poly-L-lysine (PLL) and long-chain PSSNa can lead to the formation of soluble complexes depending on pH, PLL concentration, ionic strength, and temperature. The influence of these stimuli was studied by zetametry, dynamic and ultra-small-angle light scattering, and turbidimetric measurements. First of all, we studied the stoichiometry of complexation, and then considered the influence of salt concentration and temperature on the behavior of the mixture at different pH values. These findings have allowed us to conclude that the polyelectrolyte-polypeptide stoichiometry is controlled by electrostatic interactions between opposite charges. At mass ratios between 1.8 and 2.3 and with net charges close to neutrality, unstable complexes were formed and flocculated due to the hydrophobic attraction leading to macroscopic phase separation. The linear charge density of the complex is also controlled by the ionic strength. Higher CaCl2 concentrations reduce the complex stability and decrease the charge density, which leads to surface patch binding (SPB) at higher pH. Finally, the electrostatic interactions and strength of hydrogen bonds increased the stabilization of the complexes formed at temperatures lower than 45 °C. At temperatures higher than 45 °C, hydrophobic interactions became more dominant, causing a destabilization of the complexes.
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Affiliation(s)
- Imen Naassaoui
- Faculté des Sciences de Tunis, LR99ES16 Laboratoire Physique de la Matière Molle et de la Modélisation Électromagnétique, Université de Tunis El Manar, 2092, Tunis, Tunisia
| | - Adel Aschi
- Faculté des Sciences de Tunis, LR99ES16 Laboratoire Physique de la Matière Molle et de la Modélisation Électromagnétique, Université de Tunis El Manar, 2092, Tunis, Tunisia.
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19
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Meng Y, He X, Guo L, Xu Y, Fang S, Li Y, Chen J. Physicochemical and Antibacterial Properties of Sodium Tripolyphosphate/ε-Polylysine Complexes and their Application in Cooked Sausage. FOOD BIOPHYS 2021. [DOI: 10.1007/s11483-021-09675-x] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
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20
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Wang YQ, Han YT, Yan JN, Du YN, Jiang XY, Wu HT. Gel properties and network structure of the hydrogel constructed by iota-carrageenan and Ala-Lys dipeptide. Int J Biol Macromol 2021; 182:244-251. [PMID: 33838193 DOI: 10.1016/j.ijbiomac.2021.04.001] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/24/2021] [Revised: 03/19/2021] [Accepted: 04/01/2021] [Indexed: 11/30/2022]
Abstract
Gel properties of hydrogel-forming by Ala-Lys dipeptide (AK) and iota-carrageenan (ι-C) were investigated by rheological behavior, fourier transform infrared analysis, cryo-scanning electron microscopy, low field-NMR relaxometry and magnetic resonance imaging. Iota-carrageenan was changed from a liquid to a gel with the addition of AK, and the existence of AK significantly increased the storage modulus (G') of ι-C from 590.4 to 1077.8 Pa. In the ι-C/AK gel, the blue-shift of OH stretching and water deformation were observed, meanwhile, the presence of amide I band at 1682 cm-1 was observed. The network of ι-C/AK gel showed a dense honeycomb structure with flocculating continuous phase and rough entanglement morphology. After adding AK, the water free in the pores of ι-C entered the ι-C/AK gel matrix, and the binding capacity of bound water was enhanced. These scenarios proved that the AK as the cationic dipeptide could control the conversion of negatively charged ι-C from an original random structure to a helical structure due to electrostatic interactions and hydrogen bonds. This study provides a new opportunity for the peptides into carbohydrate-based gel matrices, which could provide insights for the further application of ι-C/AK gels in the fields of food industry, tissue engineering and drug delivery.
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Affiliation(s)
- Yu-Qiao Wang
- School of Food Science and Technology, Dalian Polytechnic University, Dalian 116034, PR China
| | - Yi-Tong Han
- School of Food Science and Technology, Dalian Polytechnic University, Dalian 116034, PR China
| | - Jia-Nan Yan
- School of Food Science and Technology, Dalian Polytechnic University, Dalian 116034, PR China
| | - Yi-Nan Du
- School of Food Science and Technology, Dalian Polytechnic University, Dalian 116034, PR China
| | - Xin-Yu Jiang
- School of Food Science and Technology, Dalian Polytechnic University, Dalian 116034, PR China
| | - Hai-Tao Wu
- School of Food Science and Technology, Dalian Polytechnic University, Dalian 116034, PR China; National Engineering Research Center of Seafood, Dalian 116034, PR China; Collaborative Innovation Center of Seafood Deep Processing, Dalian 116034, PR China.
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21
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Petzel EA, Acharya S, Bailey EA, Brake DW. Effects of polymerization of casein and sources of lysine on amino acid bioavailability among calves fed liquid-based diets. J Dairy Sci 2021; 104:6779-6791. [PMID: 33741162 DOI: 10.3168/jds.2020-19461] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/12/2020] [Accepted: 02/03/2021] [Indexed: 11/19/2022]
Abstract
Two experiments were conducted to evaluate the bioavailability of AA between polymerized and less polymerized or unpolymerized sources of AA. In the first experiment, 6 bull calves (53.8 ± 0.6 kg of body weight) were bottle-fed milk replacer that contained 0, 60, or 120 additional grams of AA from casein or acid hydrolyzed casein every 12 h. Plasma essential AA increased linearly with increasing intake of casein from either source. Branched-chain amino acids accounted for 74% of increases in essential AA, regardless of source of AA. Concentrations of nonessential AA increased linearly with increased intake of AA from acid hydrolyzed casein but only tended to increase in response to casein. Also, the rate of increase in total plasma AA concentration in response to acid hydrolyzed casein (4.3 µM increase per g of supplemental AA) tended to be 145% greater than casein (3.0 µM per g of supplemental AA). In a separate experiment, 6 additional bull calves (52.1 ± 0.9 kg of body weight) were bottle-fed milk replacer that contained 0, 4.8, or 9.6 additional grams of Lys from ε-polylysine or Lys-HCl each 12 h to measure Lys bioavailability between a polymerized and unpolymerized source of Lys. Plasma Lys concentrations increased linearly in response to greater Lys intake from Lys-HCl (slope = 13.51 µM/g Lys,), but plasma Lys concentrations did not change in response to increased intake of Lys from ε-polylysine. Plasma concentrations of Thr, Met, Glu, and Gln decreased linearly with increasing ε-polylysine intake, whereas concentrations of His, Val, Leu, and Ile increased linearly with increasing ε-polylysine intake. Data from these experiments suggest that the form of AA provided to calves should be considered when formulating diets to meet AA requirements.
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Affiliation(s)
- E A Petzel
- Division of Animal Sciences, University of Missouri, Columbia 65211
| | - S Acharya
- Division of Animal Sciences, University of Missouri, Columbia 65211
| | - E A Bailey
- Division of Animal Sciences, University of Missouri, Columbia 65211
| | - D W Brake
- Division of Animal Sciences, University of Missouri, Columbia 65211.
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22
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Um J, Manguy J, Anes J, Jacquier JC, Hurley D, Dillon ET, Wynne K, Fanning S, O'Sullivan M, Shields DC. Enriching antimicrobial peptides from milk hydrolysates using pectin/alginate food-gels. Food Chem 2021; 352:129220. [PMID: 33684717 DOI: 10.1016/j.foodchem.2021.129220] [Citation(s) in RCA: 17] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/18/2020] [Revised: 01/22/2021] [Accepted: 01/22/2021] [Indexed: 01/15/2023]
Abstract
Cationic antimicrobial peptides have raised interest as attractive alternatives to classical antibiotics, and also have utility in preventing food spoilage. We set out to enrich cationic antimicrobial peptides from milk hydrolysates using gels containing various ratios of anionic pectin/alginate. All processes were carried out with food-grade materials in order to suggest food-safe methods suited for producing food ingredients or supplements. Hydrolysed caseinate peptides retained in the gel fraction, identified by mass spectrometry, were enriched for potential antimicrobial peptides, as judged by a computational predictor of antimicrobial activity. Peptides retained in a 60:40 pectin:alginate gel fraction had a strong antimicrobial effect against 8 tested bacterial strains with a minimal inhibitory concentration of 1.5-5 mg/mL, while the unfractionated hydrolysate only had a detectable effect in one of the eight strains. Among 110 predicted antimicrobial peptides in the gel fraction, four are known antimicrobial peptides, HKEMPFPK, TTMPLW, YYQQKPVA and AVPYPQR. These results highlight the potential of pectin/alginate food-gels based processes as safe, fast, cost-effective methods to separate and enrich for antimicrobial peptides from complex food protein hydrolysates.
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Affiliation(s)
- Jounghyun Um
- Conway Institute of Biomolecular and Biomedical Research, School of Medicine, University College Dublin, Dublin, Ireland; UCD Institute of Food and Health, School of Agriculture and Food Science, University College Dublin, Dublin 4, Ireland
| | - Jean Manguy
- Conway Institute of Biomolecular and Biomedical Research, School of Medicine, University College Dublin, Dublin, Ireland
| | - João Anes
- UCD-Centre for Food Safety, School of Public Health, Physiotherapy and Population Science, University College Dublin, Dublin, Ireland
| | - Jean-Christophe Jacquier
- UCD Institute of Food and Health, School of Agriculture and Food Science, University College Dublin, Dublin 4, Ireland
| | - Daniel Hurley
- UCD-Centre for Food Safety, School of Agriculture and Food Science, University College Dublin, Dublin 4, Ireland
| | - Eugene T Dillon
- Mass Spectrometry Resource, Conway Institute of Biomolecular and Biomedical Science, University College Dublin, Dublin 4, Ireland
| | - Kieran Wynne
- Mass Spectrometry Resource, Conway Institute of Biomolecular and Biomedical Science, University College Dublin, Dublin 4, Ireland
| | - Séamus Fanning
- UCD-Centre for Food Safety, School of Public Health, Physiotherapy and Population Science, University College Dublin, Dublin, Ireland
| | - Michael O'Sullivan
- UCD Institute of Food and Health, School of Agriculture and Food Science, University College Dublin, Dublin 4, Ireland.
| | - Denis C Shields
- Conway Institute of Biomolecular and Biomedical Research, School of Medicine, University College Dublin, Dublin, Ireland.
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23
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Shao Z, Yang Y, Fang S, Li Y, Chen J, Meng Y. Mechanism of the antimicrobial activity of whey protein-ε-polylysine complexes against Escherichia coli and its application in sauced duck products. Int J Food Microbiol 2020; 328:108663. [PMID: 32454366 DOI: 10.1016/j.ijfoodmicro.2020.108663] [Citation(s) in RCA: 21] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/11/2019] [Revised: 05/12/2020] [Accepted: 05/16/2020] [Indexed: 10/24/2022]
Abstract
ε-Polylysine (ε-PL) is a natural and highly effective cationic antimicrobial, of which antibacterial activity is limited in food matrix because of ε-PL's charged amino groups that form complexes with food polyanions. Whey protein-ε-PL complexes delivery system was found to be able to solve the problem and keep the antibacterial activity. This study investigated the antibacterial activity of the complexes and its mechanism against Escherichia coli. The minimal inhibitory concentration of ε-PL was in the range 11.72-25.00 g/mL for the complexes containing different amount of ε-PL and was similar to that of free ε-PL. The results of scanning electron microscopy showed that the complexes could destroy the structure of E. coli cell membrane surface, leaving holes on the surface of the bacteria, leading to the death of the bacteria. The molecular dynamics simulation results showed that the mechanism of the antibacterial activity of the complexes was as follows: under electrostatic interaction, the complexes captured the phospholipid molecules of the bacterial membrane through the hydrogen bonds between the positively charged amino groups of ε-PL and the oxygen atom of the phosphate head groups of the membrane, which could create holes on the surface of the bacteria and lead to the death of the bacteria. The results of activity on real food systems showed that the complexes kept the number of E. coli within 5.8 log10 CFU/g after 7 d storage in sauced duck products, while the positive control (ε-PL) was 6.5 log10 CFU/g and negative control (sterile water) was 7.8 log10 CFU/g. Overall, this study confirmed the antibacterial activity of the complexes and provided fundamental knowledge of its antibacterial activity mechanism.
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Affiliation(s)
- Zhipeng Shao
- College of Food Science and Biotechnology, Zhejiang Gongshang University, Hangzhou 310035, People's Republic of China
| | - Yi Yang
- College of Food Science and Biotechnology, Zhejiang Gongshang University, Hangzhou 310035, People's Republic of China
| | - Sheng Fang
- College of Food Science and Biotechnology, Zhejiang Gongshang University, Hangzhou 310035, People's Republic of China
| | - Yanhua Li
- College of Food Science and Biotechnology, Zhejiang Gongshang University, Hangzhou 310035, People's Republic of China
| | - Jie Chen
- College of Food Science and Biotechnology, Zhejiang Gongshang University, Hangzhou 310035, People's Republic of China.
| | - Yuecheng Meng
- College of Food Science and Biotechnology, Zhejiang Gongshang University, Hangzhou 310035, People's Republic of China.
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24
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Guo L, Fang Y, Shao Z, Fang S, Li Y, Chen J, Meng Y. pH-induced structural transition during complexation and precipitation of sodium caseinate and ε-Poly-l-lysine. Int J Biol Macromol 2020; 154:644-653. [PMID: 32169449 DOI: 10.1016/j.ijbiomac.2020.03.062] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/14/2020] [Revised: 03/07/2020] [Accepted: 03/09/2020] [Indexed: 10/24/2022]
Abstract
ε-Polylysine (EPL) is a food-grade antimicrobial peptide that forms complexes with proteins. Such complexes are potential carriers for targeted delivery of agents. To elucidate the formation of such complexes, the pH-induced phase transition of EPL and sodium caseinate (SC) complexes were characterized in terms of ionic strengths (I) and EPL/SC weight ratios (r). Electrostatic nanocomplexes (e.g. r = 2-3, I = 2 mM) were formed near the isoelectric point of SC using turbidimetry, dynamic light scattering, and ζ-potential measurements. Phase analyses revealed that the formation of nanocomplexes primarily depends on the I, and saturated binding was recorded above r = 2-2. Electrostatic potential modelling of EPL was employed to describe the interaction affinity. A three-dimensional phase boundary curve was established which divided the complexation into a nano-scale and phase separation. Atomic force microscopy images confirmed that nanocomplexes were spherical particles with uniform shapes. Morphologic examination using optical and scanning electron microscopy and Fourier transform infrared spectroscopy revealed that the nanocomplexes formed "sponge-like" precipitates at larger length scales. This work reveals the possible mechanism that drives the complexation of sodium caseinate and ε-Poly-l-lysine. This is expected to guide the construction of tailor-made protein complexes in industrial applications.
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Affiliation(s)
- Liang Guo
- School of Food Science and Biotechnology, Zhejiang Gongshang University, Hang-zhou 310018, People's Republic of China
| | - Yaqian Fang
- School of Food Science and Biotechnology, Zhejiang Gongshang University, Hang-zhou 310018, People's Republic of China
| | - Zhipeng Shao
- School of Food Science and Biotechnology, Zhejiang Gongshang University, Hang-zhou 310018, People's Republic of China
| | - Sheng Fang
- School of Food Science and Biotechnology, Zhejiang Gongshang University, Hang-zhou 310018, People's Republic of China
| | - Yanhua Li
- School of Food Science and Biotechnology, Zhejiang Gongshang University, Hang-zhou 310018, People's Republic of China
| | - Jie Chen
- School of Food Science and Biotechnology, Zhejiang Gongshang University, Hang-zhou 310018, People's Republic of China
| | - Yuecheng Meng
- School of Food Science and Biotechnology, Zhejiang Gongshang University, Hang-zhou 310018, People's Republic of China.
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25
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Lv J, Meng Y, Shi Y, Li Y, Chen J, Sheng F. Properties of epsilon‐polylysine·HCl/high‐methoxyl pectin polyelectrolyte complexes and their commercial application. J FOOD PROCESS PRES 2019. [DOI: 10.1111/jfpp.14320] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Ji‐Min Lv
- College of Biosystems Engineering and Food Science Zhejiang University Hangzhou People’s Republic of China
- School of Food Science and Biotechnology Zhejiang Gongshang University Hangzhou People’s Republic of China
| | - Yue‐Cheng Meng
- School of Food Science and Biotechnology Zhejiang Gongshang University Hangzhou People’s Republic of China
| | - Yu‐Gang Shi
- School of Food Science and Biotechnology Zhejiang Gongshang University Hangzhou People’s Republic of China
| | - Yan‐Hua Li
- School of Food Science and Biotechnology Zhejiang Gongshang University Hangzhou People’s Republic of China
| | - Jie Chen
- School of Food Science and Biotechnology Zhejiang Gongshang University Hangzhou People’s Republic of China
| | - Fang Sheng
- School of Food Science and Biotechnology Zhejiang Gongshang University Hangzhou People’s Republic of China
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26
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Tuersuntuoheti T, Wang Z, Wang Z, Liang S, Li X, Zhang M. Review of the application of ε‐poly‐L‐lysine in improving food quality and preservation. J FOOD PROCESS PRES 2019. [DOI: 10.1111/jfpp.14153] [Citation(s) in RCA: 25] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Affiliation(s)
- Tuohetisayipu Tuersuntuoheti
- Beijing Advanced Innovation Center for Food Nutrition and Human Health Beijing Technology and Business University Beijing China
- Beijing Engineering and Technology Research Center of Food Additives, Beijing Technology and Business University Beijing China
| | - Zhenhua Wang
- Beijing Advanced Innovation Center for Food Nutrition and Human Health Beijing Technology and Business University Beijing China
- Beijing Engineering and Technology Research Center of Food Additives, Beijing Technology and Business University Beijing China
| | - Ziyuan Wang
- Beijing Advanced Innovation Center for Food Nutrition and Human Health Beijing Technology and Business University Beijing China
- Beijing Engineering and Technology Research Center of Food Additives, Beijing Technology and Business University Beijing China
| | - Shan Liang
- Beijing Advanced Innovation Center for Food Nutrition and Human Health Beijing Technology and Business University Beijing China
- Beijing Engineering and Technology Research Center of Food Additives, Beijing Technology and Business University Beijing China
| | - Xinping Li
- Beijing Advanced Innovation Center for Food Nutrition and Human Health Beijing Technology and Business University Beijing China
- Beijing Engineering and Technology Research Center of Food Additives, Beijing Technology and Business University Beijing China
| | - Min Zhang
- Beijing Advanced Innovation Center for Food Nutrition and Human Health Beijing Technology and Business University Beijing China
- Beijing Engineering and Technology Research Center of Food Additives, Beijing Technology and Business University Beijing China
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27
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Jia Z, Li C, Fang T, Chen J. Predictive Modeling of the Effect of ε-Polylysine Hydrochloride on Growth and Thermal Inactivation of Listeria monocytogenes in Fish Balls. J Food Sci 2018; 84:127-132. [PMID: 30569471 DOI: 10.1111/1750-3841.14420] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/13/2018] [Revised: 11/15/2018] [Accepted: 11/16/2018] [Indexed: 11/30/2022]
Abstract
This study aimed to evaluate the effect of ε-polylysine hydrochloride (ε-PLH) on the growth and thermal inactivation kinetics of Listeria monocytogenes in fish balls. Samples, supplemented with ε-PLH (0, 150, or 300 ppm, w/w), were inoculated with a three-strain cocktail of L. monocytogenes and incubated at constant temperatures of 3.4, 8, 12, or 16 °C for growth studies, or heated at 60, 62.5, 65, or 67.5 °C for thermal inactivation tests. The growth curves were fitted to the Huang primary model, and the Huang and Ratkowsky square-root models (SRM) were used as the secondary models to evaluate the effect of temperature on bacterial growth. The survival during heating was analyzed with a log-linear model. The results showed that, while the lag time of L. monocytogenes was affected by both ε-PLH concentration and temperature, the specific growth rate was unaffected by ε-PLH. Under the same temperature, a 10-time in increase of the lag time would be expected for every 565 ppm in the increase of ε-PLH concentration. Using the Ratkowsky SRM, the estimated nominal minimum growth temperature was -2.04 °C, while the minimum growth temperature was 0.29 °C when estimated with the Huang SRM. Validation at 10 °C showed that the Huang primary model, in combination with either the Huang or Ratkowsky SRM, could accurately predict the growth of L. monocytogenes. On the other hand, the thermal resistance of the pathogen was significantly reduced by increase in temperature or ε-PLH. The thermal z value of L. monocytogenes was 5.78 °C, and the ε-PLH z value was 1642 ppm. The results of this study showed that the combined application of ε-PLH and temperature can be used to control L. monocytogenes in fish balls and to improve food safety and reduce risks to public health.
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Affiliation(s)
- Zhen Jia
- the Fujian Agriculture and Forestry Univ., Fuzhou, 350002, China
| | - Changcheng Li
- the Fujian Agriculture and Forestry Univ., Fuzhou, 350002, China
| | - Ting Fang
- the Fujian Agriculture and Forestry Univ., Fuzhou, 350002, China
| | - Jinquan Chen
- the Fujian Agriculture and Forestry Univ., Fuzhou, 350002, China
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28
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Tan Z, Bo T, Guo F, Cui J, Jia S. Effects of ε-Poly-l-lysine on the cell wall of Saccharomyces cerevisiae and its involved antimicrobial mechanism. Int J Biol Macromol 2018; 118:2230-2236. [DOI: 10.1016/j.ijbiomac.2018.07.094] [Citation(s) in RCA: 28] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/21/2018] [Revised: 07/12/2018] [Accepted: 07/14/2018] [Indexed: 01/08/2023]
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29
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Shao Z, Fang S, Li Y, Chen J, Meng Y. Physicochemical properties and formation mechanism of electrostatic complexes based on ε-polylysine and whey protein: Experimental and molecular dynamics simulations study. Int J Biol Macromol 2018; 118:2208-2215. [DOI: 10.1016/j.ijbiomac.2018.07.086] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/09/2018] [Revised: 07/12/2018] [Accepted: 07/12/2018] [Indexed: 01/30/2023]
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30
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Lin L, Gu Y, Li C, Vittayapadung S, Cui H. Antibacterial mechanism of ε -Poly-lysine against Listeria monocytogenes and its application on cheese. Food Control 2018. [DOI: 10.1016/j.foodcont.2018.03.025] [Citation(s) in RCA: 74] [Impact Index Per Article: 12.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/17/2022]
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31
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You X, Einson JE, Lopez-Pena CL, Song M, Xiao H, McClements DJ, Sela DA. Food-grade cationic antimicrobial ε-polylysine transiently alters the gut microbial community and predicted metagenome function in CD-1 mice. NPJ Sci Food 2017; 1:8. [PMID: 31304250 PMCID: PMC6550245 DOI: 10.1038/s41538-017-0006-0] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/07/2016] [Revised: 06/20/2017] [Accepted: 07/11/2017] [Indexed: 12/19/2022] Open
Abstract
Diet is an important factor influencing the composition and function of the gut microbiome, but the effect of antimicrobial agents present within foods is currently not understood. In this study, we investigated the effect of the food-grade cationic antimicrobial ε-polylysine on the gut microbiome structure and predicted metagenomic function in a mouse model. The relative abundances of predominant phyla and genera, as well as the overall community structure, were perturbed in response to the incorporation of dietary ε-polylysine. Unexpectedly, this modification to the gut microbiome was experienced transiently and resolved to the initial basal composition at the final sampling point. In addition, a differential non-random assembly was observed in the microbiomes characterized from male and female co-housed animals, although their perturbation trajectories in response to diet remain consistent. In conclusion, antimicrobial ε-polylysine incorporated into food systems transiently alters gut microbial communities in mice, as well as their predicted function. This indicates a dynamic but resilient microbiome that adapts to microbial-active dietary components.
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Affiliation(s)
- Xiaomeng You
- Department of Food Science, University of Massachusetts, Amherst, MA 01003 USA
| | - Jonah E. Einson
- Department of Food Science, University of Massachusetts, Amherst, MA 01003 USA
- Commonwealth Honors College, University of Massachusetts, Amherst, MA 01003 USA
| | - Cynthia Lyliam Lopez-Pena
- Department of Food Science, University of Massachusetts, Amherst, MA 01003 USA
- Nestlé Nutrition, 445 State St., Fremont, MI 49413 USA
| | - Mingyue Song
- Department of Food Science, University of Massachusetts, Amherst, MA 01003 USA
| | - Hang Xiao
- Department of Food Science, University of Massachusetts, Amherst, MA 01003 USA
| | | | - David A. Sela
- Department of Food Science, University of Massachusetts, Amherst, MA 01003 USA
- Department of Microbiology, University of Massachusetts, Amherst, MA 01003 USA
- Department of Microbiology & Physiological Systems and Center for Microbiome Research, University of Massachusetts Medical School, Worcester, MA 01655 USA
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32
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Datta LP, Mukherjee R, Biswas S, Das TK. Peptide-Based Polymer-Polyoxometalate Supramolecular Structure with a Differed Antimicrobial Mechanism. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2017; 33:14195-14208. [PMID: 29135264 DOI: 10.1021/acs.langmuir.7b02916] [Citation(s) in RCA: 24] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/07/2023]
Abstract
Because of the increasing prevalence of multidrug resistance feature, several investigations have been so far reported regarding the antibiotic alternative supramolecular bioactive agents made of hybrid assemblies. In this regard, it is well-established that combinational therapy inherited by assembled supramolecular structures can improve the bioactivity to some extent, but their mode of action has not been studied in detail. We provide first direct evidence that the improved mechanism of action of antimicrobial supra-amphiphilic nanocomposites differs largely from their parent antimicrobial peptide-based polymers. For the construction of a hybrid combinational system, we have synthesized side-chain peptide-based antimicrobial polymers via RAFT polymerization and exploited their cationic nature to decorate supra-amphiphilic nanocomposites via interaction with anionic polyoxometalates. Because of cooperative antimicrobial properties of both the polymer and polyoxometalate, the nanocomposites show an enhanced antimicrobial activity with a different antimicrobial mechanism. The cationic stimuli-responsive peptide-based polymers attack bacteria via membrane disruption mechanism, whereas free radical-mediated cell damage is the likely mechanism of polymer-polyoxometalate-based supra-amphiphilic nanocomposites. Thus, our study highlights the different antimicrobial mechanism of combinational systems in detail, which improves our understanding of enhanced antimicrobial efficacy.
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Affiliation(s)
- Lakshmi Priya Datta
- Department of Biochemistry & Biophysics, University of Kalyani , Kalyani 741235, Nadia, West Bengal, India
| | - Riya Mukherjee
- Department of Biochemistry & Biophysics, University of Kalyani , Kalyani 741235, Nadia, West Bengal, India
| | - Subharanjan Biswas
- Department of Chemical Sciences, Indian Institute of Science Education and Research Kolkata , Mohanpur 741246, Nadia, West Bengal, India
| | - Tapan Kumar Das
- Department of Biochemistry & Biophysics, University of Kalyani , Kalyani 741235, Nadia, West Bengal, India
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33
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Pectins functionalized biomaterials; a new viable approach for biomedical applications: A review. Int J Biol Macromol 2017; 101:254-272. [DOI: 10.1016/j.ijbiomac.2017.03.029] [Citation(s) in RCA: 160] [Impact Index Per Article: 22.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/11/2017] [Revised: 03/03/2017] [Accepted: 03/06/2017] [Indexed: 12/31/2022]
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34
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Song M, Lopez-Pena CL, McClements DJ, Decker EA, Xiao H. Safety evaluation and lipid-lowering effects of food-grade biopolymer complexes (ε-polylysine-pectin) in mice fed a high-fat diet. Food Funct 2017; 8:1822-1829. [DOI: 10.1039/c7fo00222j] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A 13-week feeding study was conducted in mice to determine the safety and lipid-lowering effects of ε-polylysine-pectin biopolymer complexes.
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Affiliation(s)
- Mingyue Song
- Department of Food Science
- University of Massachusetts
- Amherst
- USA
| | | | | | | | - Hang Xiao
- Department of Food Science
- University of Massachusetts
- Amherst
- USA
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35
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Guo L, Meng Y, Fang S. Physicochemical and antimicrobial properties of ε-polylysine/carboxymethyl chitosan polyelectrolyte complexes and their effect against spoilage microorganisms in raw pork. Food Funct 2017; 8:2243-2248. [DOI: 10.1039/c7fo00279c] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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36
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An update on polysaccharide-based nanomaterials for antimicrobial applications. Appl Microbiol Biotechnol 2016; 100:2603-15. [PMID: 26830099 DOI: 10.1007/s00253-016-7315-0] [Citation(s) in RCA: 37] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/27/2015] [Revised: 01/09/2016] [Accepted: 01/12/2016] [Indexed: 01/01/2023]
Abstract
Scientific community has made a lot of efforts to combat the infectious diseases using antimicrobial agents, but these are associated with problems of development of multi-drug resistance and their adverse side effects. To tackle these challenges, nanocarrier-based drug delivery system using polysaccharides has received enormous attention in the past few years. These antimicrobial agents can become more efficacious when adsorbed, entrapped, or linked to polysaccharides. In addition, these nanocarrier-based systems provide an increase in the surface area of the drug and are able to achieve the targeted drug delivery as well as used for the synthesis of packaging materials with improved mechanical strength, barrier, and antimicrobial properties. This review focuses on potential therapeutic applications of nanocarrier-based drug delivery systems using polysaccharides for antimicrobial applications.
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37
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Lopez-Pena CL, McClements DJ. Impact of a food-grade cationic biopolymer (ε-polylysine) on the digestion of emulsified lipids: In vitro study. Food Res Int 2015; 75:34-40. [DOI: 10.1016/j.foodres.2015.05.025] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/07/2015] [Revised: 05/07/2015] [Accepted: 05/08/2015] [Indexed: 12/22/2022]
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38
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Lopez-Pena CL, Song M, Xiao H, Decker EA, McClements DJ. Potential impact of biopolymers (ε-polylysine and/or pectin) on gastrointestinal fate of foods: In vitro study. Food Res Int 2015; 76:769-776. [PMID: 28455062 DOI: 10.1016/j.foodres.2015.06.036] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/28/2015] [Revised: 06/22/2015] [Accepted: 06/27/2015] [Indexed: 11/30/2022]
Abstract
Food-grade biopolymers, such as proteins and polysaccharides, may impact the gastrointestinal fate of foods through various mechanisms. In this study, we examined the influence of ε-polylysine (an antimicrobial) and pectin (a thickening agent) on the behavior of a standard rodent diet (full-fat and fat-free) in a simulated gastrointestinal tract that included mouth, stomach, and small intestine phases. Powdered biopolymers were incorporated into the standard diet in either individual or complexed form. The presence of the biopolymers altered the microstructure and charge characteristics of the gastrointestinal contents. In particular, the presence of pectin appeared to increase the rate and extent of lipid digestion, which may have been due to its ability to inhibit protein aggregation. Our results do not support the hypothesis that polylysine inhibits lipid digestion, as has been reported previously. Overall, the results of this study may be useful for interpreting animal feeding studies of the influence of biopolymers on the gastrointestinal fate of foods.
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Affiliation(s)
| | - Mingyue Song
- Department of Food Science, University of Massachusetts Amherst, Amherst, MA, 01003, United States
| | - Hang Xiao
- Department of Food Science, University of Massachusetts Amherst, Amherst, MA, 01003, United States
| | - Eric Andrew Decker
- Department of Food Science, University of Massachusetts Amherst, Amherst, MA, 01003, United States; Department of Biochemistry, Faculty of Science, King Abdulaziz University, Jeddah, Saudi Arabia
| | - David Julian McClements
- Department of Food Science, University of Massachusetts Amherst, Amherst, MA, 01003, United States; Department of Biochemistry, Faculty of Science, King Abdulaziz University, Jeddah, Saudi Arabia
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39
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Kuchlyan J, Banik D, Roy A, Kundu N, Sarkar N. Vesicles Formation by Zwitterionic Micelle and Poly-l-lysine: Solvation and Rotational Relaxation Study. J Phys Chem B 2015; 119:8285-92. [PMID: 26053544 DOI: 10.1021/acs.jpcb.5b02893] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Jagannath Kuchlyan
- Department
of Chemistry, Indian Institute of Technology, Kharagpur 721302, West Bengal, India
| | - Debasis Banik
- Department
of Chemistry, Indian Institute of Technology, Kharagpur 721302, West Bengal, India
| | - Arpita Roy
- Department
of Chemistry, Indian Institute of Technology, Kharagpur 721302, West Bengal, India
| | - Niloy Kundu
- Department
of Chemistry, Indian Institute of Technology, Kharagpur 721302, West Bengal, India
| | - Nilmoni Sarkar
- Department
of Chemistry, Indian Institute of Technology, Kharagpur 721302, West Bengal, India
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40
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Chang Y, McLandsborough L, McClements DJ. Interaction of cationic antimicrobial (ɛ-polylysine) with food-grade biopolymers: Dextran, chitosan, carrageenan, alginate, and pectin. Food Res Int 2014; 64:396-401. [DOI: 10.1016/j.foodres.2014.07.002] [Citation(s) in RCA: 32] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/21/2014] [Revised: 06/28/2014] [Accepted: 07/03/2014] [Indexed: 11/25/2022]
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41
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Effectiveness of a novel spontaneous carvacrol nanoemulsion against Salmonella enterica Enteritidis and Escherichia coli O157:H7 on contaminated mung bean and alfalfa seeds. Int J Food Microbiol 2014; 187:15-21. [DOI: 10.1016/j.ijfoodmicro.2014.06.030] [Citation(s) in RCA: 46] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/08/2014] [Revised: 06/24/2014] [Accepted: 06/29/2014] [Indexed: 11/21/2022]
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42
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Antimicrobial delivery systems based on electrostatic complexes of cationic ɛ-polylysine and anionic gum arabic. Food Hydrocoll 2014. [DOI: 10.1016/j.foodhyd.2013.05.004] [Citation(s) in RCA: 30] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
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43
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Lopez-Pena CL, McClements DJ. Optimizing delivery systems for cationic biopolymers: competitive interactions of cationic polylysine with anionic κ-carrageenan and pectin. Food Chem 2013; 153:9-14. [PMID: 24491693 DOI: 10.1016/j.foodchem.2013.12.024] [Citation(s) in RCA: 28] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/20/2013] [Revised: 11/13/2013] [Accepted: 12/04/2013] [Indexed: 10/25/2022]
Abstract
Polylysine is a cationic biopolymer with a strong antimicrobial activity against a wide range of microorganisms, however, its functional performance is influenced by its interactions with anionic biopolymers. We examined the stability of polylysine-pectin complexes in the presence of carrageenan, and vice versa. Polylysine-pectin or polylysine-carrageenan complexes were formed at mass ratios of 1:0 to 1:32 (pH 3.5), and then micro-electrophoresis, turbidity, microscopy, and isothermal titration calorimetry (ITC) were used to characterise them. Solutions containing polylysine-pectin complexes were slightly turbid and relatively stable to aggregation at high mass ratios, whereas those containing polylysine-carrageenan complexes were turbid and unstable to aggregation and precipitation. Pectin did not strongly interact with polylysine-carrageenan complexes, whereas carrageenan displaced pectin from polylysine-pectin complexes, which was attributed to differences in electrostatic attraction between polylysine, carrageenan, and pectin. These results have important implications for the design of effective antimicrobial delivery systems for foods and beverages.
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Affiliation(s)
- Cynthia Lyliam Lopez-Pena
- Department of Food Science, University of Massachusetts Amherst, 240 Chenoweth Laboratory, 100 Holdsworth Way, Amherst, MA 01003, United States.
| | - David Julian McClements
- Department of Food Science, University of Massachusetts Amherst, 240 Chenoweth Laboratory, 100 Holdsworth Way, Amherst, MA 01003, United States.
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44
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Guan Y, Ye F, Liu J, Zhao G. Interactions of ε-polylysine with carboxymethyl sweet potato starch with an emphasis on amino/carboxyl molar ratio. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2013; 61:11653-11659. [PMID: 24206259 DOI: 10.1021/jf404029h] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/02/2023]
Abstract
The interaction between ε-polylysine (ε-PL) and anionic polysaccharides has gained considerable attention recently because of its scientific impact on the stability and appearance of liquid food systems. The purpose of this study was to characterize the interactions between ε-PL and carboxymethyl sweet potato starch (CSS) using isothermal titration calorimetry (ITC), electrical charge, and turbidity measurements. The results showed that the interaction between ε-PL and CSS was electrostatic and mainly dependent on the molar ratio of amino groups in ε-PL to carboxyl groups in CSS. Additionally, the interaction between ε-PL and CSS was also associated with pH, degree of substitution (DS) of CSS, and ionic strength of the system. For the interaction of ε-PL with high DS (>0.235) CSS, three states of the ε-PL/CSS mixture were observed as transparent, turbid, and precipitated with a successive increase in amino/carboxyl molar ratio. Distinguishingly, a transparent mixture could be obtained for CSS with low DS (0.114) at a sufficiently high amino/carboxyl molar ratio. The present study provided basic guidance in designing liquid food systems containing both ε-PL and CSS.
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Affiliation(s)
- Yufang Guan
- College of Food Science, Southwest University , Chongqing 400715, PR China
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45
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Li YQ, Feng JL, Han Q, Dai ZY, Liu W, Mo HZ. Effects of ε-Polylysine on Physicochemical Characteristics of Chilled Pork. FOOD BIOPROCESS TECH 2013. [DOI: 10.1007/s11947-013-1223-4] [Citation(s) in RCA: 25] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
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46
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Loveday SM, Ye A, Anema SG, Singh H. Heat-induced colloidal interactions of whey proteins, sodium caseinate and gum arabic in binary and ternary mixtures. Food Res Int 2013. [DOI: 10.1016/j.foodres.2013.06.013] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
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Chang Y, McLandsborough L, McClements DJ. Physicochemical properties and antimicrobial efficacy of carvacrol nanoemulsions formed by spontaneous emulsification. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2013; 61:8906-8913. [PMID: 23998790 DOI: 10.1021/jf402147p] [Citation(s) in RCA: 118] [Impact Index Per Article: 10.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/02/2023]
Abstract
A simple cost-effective method (spontaneous emulsification) for fabricating physically stable antimicrobial nanoemulsions from essential oils is described. These nanoemulsions (10 wt % total oil phase) were formed by titration of a mixture of essential oil (carvacrol), carrier oil (medium chain triglyceride, MCT), and nonionic surfactant (Tween) into an aqueous solution with continuous stirring. Oil phase composition (carvacrol-to-MCT mass ratio) had a major impact on initial droplet diameter, with the smallest droplets (d ≈ 55 nm) being formed at 2.5 wt % carvacrol and 7.5 wt % MCT. Surfactant type also had an appreciable impact on mean droplet diameter, with Tween 80 giving the smallest droplets (d ≈ 55 nm) from a group of food-grade nonionic surfactants (Tween 20, 40, 60, 80, and 85). The droplet size also decreased (from >5000 to <25 nm) as the total surfactant concentration was increased (from 5 to 20 wt %). The long-term stability and antimicrobial efficacy of selected nanoemulsions was examined at ambient temperature. The stability of the nanoemulsions to droplet growth during storage decreased as the carvacrol concentration in the oil phase increased. Conversely, the antimicrobial efficacy of the nanoemulsions increased as the carvacrol concentration increased. These results have important implications for the design and utilization of nanoemulsions as antimicrobial delivery systems in the food and other industries. They suggest that the carrier oil concentration must be carefully controlled to obtain good physical stability and antimicrobial efficacy.
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Affiliation(s)
- Yuhua Chang
- Department of Food Science, University of Massachusetts , Amherst, Massachusetts 01003, United States
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Chang Y, McLandsborough L, McClements DJ. Physical properties and antimicrobial efficacy of thyme oil nanoemulsions: influence of ripening inhibitors. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2012; 60:12056-63. [PMID: 23140446 DOI: 10.1021/jf304045a] [Citation(s) in RCA: 148] [Impact Index Per Article: 12.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/20/2023]
Abstract
Thyme oil-in-water nanoemulsions (pH 3.5) were prepared as potential antimicrobial delivery systems. The nanoemulsions were highly unstable to droplet growth and phase separation, which was attributed to Ostwald ripening due to the relatively high water solubility of thyme oil. Ostwald ripening could be inhibited by mixing thyme oil with a water-insoluble ripening inhibitor (≥60 wt % corn oil or ≥50 wt % MCT in the lipid phase) before homogenization, yielding nanoemulsions with good physical stability. Physically stable thyme oil nanoemulsions were examined for their antimicrobial activities against an acid-resistant spoilage yeast, Zygosaccharomyces bailii (ZB). Oil phase composition (ripening inhibitor type and concentration) had an appreciable influence on the antimicrobial activity of the thyme oil nanoemulsions. In general, increasing the ripening inhibitor levels in the lipid phase reduced the antimicrobial efficacy of nanoemulsions. For example, for nanoemulsions containing 60 wt % corn oil in the lipid phase, the minimum inhibitory concentration (MIC) of thyme oil to inhibit ZB growth was 375 μg/mL, while for nanoemulsions containing 90 wt % corn oil in the lipid phase, even 6000 μg/mL thyme oil could not inhibit ZB growth. This effect is also dependent on ripening inhibitor types: at the same concentration in the lipid phase, MCT decreased the antimicrobial efficacy of thyme oil more than corn oil. For instance, when the level of ripening inhibitor in the lipid phase was 70 wt %, the MICs of thyme oil for nanoemulsions containing corn oil and MCT were 750 and 3000 μg/mL, respectively. The results of this study have important implications for the design and utilization of nanoemulsions as antimicrobial delivery systems in the food and other industries.
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Affiliation(s)
- Yuhua Chang
- Department of Food Science, University of Massachusetts, Amherst, Massachusetts 01003, United States
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Chang Y, McLandsborough L, McClements DJ. Cationic antimicrobial (ε-polylysine)-anionic polysaccharide (pectin) interactions: influence of polymer charge on physical stability and antimicrobial efficacy. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2012; 60:1837-1844. [PMID: 22268773 DOI: 10.1021/jf204384s] [Citation(s) in RCA: 42] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/31/2023]
Abstract
The cationic biopolymer ε-polylysine (ε-PL) is a potent food-grade antimicrobial that is highly effective against a range of food pathogens and spoilage organisms. In compositionally complex systems such as foods and beverages, cationic ε-PL molecules may associate with anionic substances, leading to increased turbidity, sediment formation, and reduced antimicrobial activity. This study therefore characterized the interactions between cationic ε-PL and anionic pectins with different degrees of esterification (DE) and then investigated the influence of these interactions on the antimicrobial efficacy of ε-PL. The nature of the interactions was characterized using isothermal titration calorimetry (ITC), microelectrophoresis (ME), and turbidity measurements. High (DE 61%), medium (DE 51%), and low (DE 42%) methoxyl pectins interacted with ε-PL molecules through electrostatic forces, forming either soluble or insoluble complexes with various electrical charges, depending on the relative mass ratio of pectin and ε-PL. The interaction of pectin with ε-PL increased as the negative charge density on the pectin molecules increased, that is, with decreasing DE. The antimicrobial efficacy of ε-PL against two acid-resistant spoilage yeasts (Zygosaccharomyces bailii and Saccharomyces cerevisiae) decreased progressively in the presence of increasing levels of all three pectins. Nevertheless, the low DE pectin decreased the antimicrobial efficacy of ε-PL much more dramatically, likely due to strong electrostatic binding of ε-PL onto low DE pectin molecules reducing its interaction with anionic microbe surfaces. This study provides knowledge that will facilitate the rational application of ε-PL as an antimicrobial in complex food systems.
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Affiliation(s)
- Yuhua Chang
- Department of Food Science, University of Massachusetts, Amherst, Massachusetts 01003, United States
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