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Karnjana K, Jewboonchu J, Niyomtham N, Tangngamsakul P, Bunluepuech K, Goodla L, Mordmuang A. The potency of herbal extracts and its green synthesized nanoparticle formulation as antibacterial agents against Streptococcus mutans associated biofilms. BIOTECHNOLOGY REPORTS (AMSTERDAM, NETHERLANDS) 2022; 37:e00777. [PMID: 36582762 PMCID: PMC9792395 DOI: 10.1016/j.btre.2022.e00777] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 10/08/2022] [Revised: 11/22/2022] [Accepted: 12/09/2022] [Indexed: 12/14/2022]
Abstract
This study aims to determine the effects of the extracts of Streblus asper, Cymbopogon citratus, Syzygium aromaticum and its formulation of green synthesized silver nanoparticle (AgNPs) on Streptococcus mutans growth and biofilm formation. The ethanolic extracts of S. asper, C. citratus, S. aromaticum, and a mix of the three herbs demonstrated antibacterial activity against S. mutans isolates by reducing bacterial biofilm formation and decreasing bacterial cell surface hydrophobicity. The formulated AgNPs from the ethanolic extracts could enhance the antibacterial activities of the plant extracts. Molecular docking found the best interaction between luteolin isolated from C. citratus and glucosyltransferase protein (GtfB), assuming the promising anti-biofilm activity. The scanning electron microscopy revealed morphological changes in the biofilm structure and a significant decrease in the biofilm area of the AgNPs treated. The study suggested that the extracts and its application could be used as natural alternative agents with multi-action against S. mutans infections.
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Affiliation(s)
- Kulwadee Karnjana
- Department of Medical Sciences, School of Medicine, Walailak University, Nakhon Si Thammarat, 80160, Thailand
| | - Juntamanee Jewboonchu
- Department of Medical Sciences, School of Medicine, Walailak University, Nakhon Si Thammarat, 80160, Thailand
| | - Nattisa Niyomtham
- International College of Dentistry, Walailak University, Bangkok, 10400, Thailand
| | - Paveen Tangngamsakul
- Walailak University Hospital, Walailak University, Nakhon Si Thammarat, 80160, Thailand
| | - Kingkan Bunluepuech
- Department of Applied Thai Traditional Medicine, School of Medicine, Walailak University, Nakhon Si Thammarat, 80160, Thailand
| | - Lavnaya Goodla
- Department of Biochemistry and Molecular Biology, University of New Mexico School of Medicine, Albuquerque, NM, 87131, United States of America
| | - Auemphon Mordmuang
- Department of Medical Sciences, School of Medicine, Walailak University, Nakhon Si Thammarat, 80160, Thailand,Corresponding author at: 222, School of Medicine, Walailak University, Nakhon Si Thammarat, 80160, Thailand.
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Stefaniak K, Masek A, Jastrzębska A. Biocomposites of Epoxidized Natural Rubber Modified with Natural Substances. Molecules 2022; 27:molecules27227877. [PMID: 36431977 PMCID: PMC9697396 DOI: 10.3390/molecules27227877] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/04/2022] [Revised: 11/01/2022] [Accepted: 11/04/2022] [Indexed: 11/17/2022] Open
Abstract
This research aimed to show the possible impact of natural antioxidants on epoxidized natural rubber (ENR) and poly(lactic acid) (PLA) green composites. Thus, the ENR/PLA blends were prepared with the addition of three selected phytochemicals (catechin hydrate, eugenol and flavone). Obtained materials were submitted for solar aging. The analysis of the samples’ features revealed that catechin hydrate is a natural substance that may delay the degradation of ENR/PLA blends under the abovementioned conditions. The blend loaded with catechin hydrate presented stable color parameters (dE < 3 a.u.), the highest aging coefficient (K = 0.38 a.u.) and the lowest carbonyl index based on FT-IR data (CI = 1.56) from among all specimens. What is more, this specimen prolonged the oxidation induction time in comparison with the reference samples. Gathered data prove the efficiency of catechin hydrate as an anti-aging additive. Additionally, it was found that a specimen loaded with flavone changed its color parameters significantly after solar aging (dE = 14.83 a.u.) so that it would be used as an aging indicator. Eventually, presented eco-friendly ENR-based compositions may be applied in polymer technology where materials presenting specific properties are desirable.
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Affiliation(s)
- Konrad Stefaniak
- Institute of Polymer and Dye Technology, Faculty of Chemistry, Lodz University of Technology, Stefanowskiego 16, 90-537 Lodz, Poland
| | - Anna Masek
- Institute of Polymer and Dye Technology, Faculty of Chemistry, Lodz University of Technology, Stefanowskiego 16, 90-537 Lodz, Poland
- Correspondence:
| | - Aleksandra Jastrzębska
- Institute of Materials Science and Engineering, Faculty of Mechanical Engineering, Lodz University of Technology, Stefanowskiego 1/15, 90-537 Lodz, Poland
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SILVA RMD, SILVA IDMMD, ESTEVINHO MM, ESTEVINHO LM. Anti-bacterial activity of Annona muricata Linnaeus extracts: a systematic review. FOOD SCIENCE AND TECHNOLOGY 2022. [DOI: 10.1590/fst.13021] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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