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  • Open Access


    Synthesis of Metallic Nanoparticles Based on Green Chemistry and Their Medical Biochemical Applications: Synthesis of Metallic Nanoparticles

    Kakudji Kisimba1, Anand Krishnan2,*, Mbuso Faya1, Kahumba Byanga3, Kabange Kasumbwe4, Kaliyapillai Vijayakumar5, Ram Prasad6,*

    Journal of Renewable Materials, Vol.11, No.6, pp. 2575-2591, 2023, DOI:10.32604/jrm.2023.026159

    Abstract Nanoparticles have distinct properties that make them potentially valuable in a variety of industries. As a result, emerging approaches for the manufacture of nanoparticles are gaining a lot of scientific interest. The biological pathway of nanoparticle synthesis has been suggested as an effective, affordable, and environmentally safe method. Synthesis of nanoparticles through physical and chemical processes uses unsafe materials, expensive equipment and adversely affects the environment. As a result, in order to support the increased utilization of nanoparticles across many sectors, nanotechnology research activities have shifted toward environmentally safe and cost-effective techniques that outperform chemical and/or biological procedures. The use… More > Graphic Abstract

    Synthesis of Metallic Nanoparticles Based on Green Chemistry and Their Medical Biochemical Applications: Synthesis of Metallic Nanoparticles

  • Open Access


    Surface, Thermal and Antimicrobial Release Properties of Plasma-Treated Zein Films

    S.K. Pankaj1, C. Bueno-Ferrer1, N.N. Misra1, L. O’Neill2, A. Jiménez3, P. Bourke1, P.J. Cullen1,4,*

    Journal of Renewable Materials, Vol.2, No.1, pp. 77-84, 2014, DOI:10.7569/JRM.2013.634129

    Abstract The effects of dielectric barrier discharge plasma treatment on zein fi lm containing thymol as an active ingredient were evaluated. The plasma discharge was optically characterized to identify the reactive species. A signifi cant increase in the fi lm roughness (p < 0.05) was observed due to the etching effect of DBD plasma, which was correlated with the increase in the diffusion rate of thymol in the food simulant. The diffusion of thymol from the zein fi lm was measured in aqueous solution. The kinetics of thymol release followed the Fick’s law of diffusion as shown by the high correlation… More >

  • Open Access


    Assessment of Phytochemical Analysis, Nutritional Composition and Antimicrobial Activity of Moringa oleifera

    Naima Asghar1, Abida Aziz1, Muhammad Farooq Azhar2 , Mohamed El-Sharnouby3, Uzma Irfan1, Iqra Rafiq1, Husnain Farooq4,5,*, Muhammad Ishaq Asif Rehmani6, Mohamed I. Sakran7, A. Altalhi8, Fahad M. Alzuaibr9, Ayman El Sabagh10,*

    Phyton-International Journal of Experimental Botany, Vol.91, No.8, pp. 1817-1829, 2022, DOI:10.32604/phyton.2022.020790

    Abstract Moringa oleifera is a miracle plant rich in nutrients, antioxidants, and antibiotic properties. Present study was designed to evaluate various biochemical attributes of leaves and flowers of M. oleifera. Plant parts (leaves, flowers) of M. oleifera, collected from different roadsides of Multan district, Punjab, Pakistan, were used as experimental material. Result indicates that alkaloids, saponin, carbohydrates, fats, and protein had a high value in the aqueous extract of both leaves and flowers of M. oleifera. Whereas phenol content was high in methanolic leaves extract and the phenol contents were high in aqueous extract of flowers. The extract yield of M.… More >

  • Open Access


    Comparison of Essential Oil Composition, Phenolic Compound and Biological Activities of Salvia microphylla and Teucrium polium (Lamiaceae)

    Ayda Khadhri1, Chedia Aouadhi2, Eric Masson3, Antonio Pizzi4,5,*

    Journal of Renewable Materials, Vol.10, No.6, pp. 1607-1621, 2022, DOI:10.32604/jrm.2022.018950

    Abstract Salvia microphylla and Teucrium polium are medicinal and aromatic plants with ethnobotanical uses. The present study was conducted to investigate the chemical composition of Salvia microphylla and Teucrium polium essential oils, the secondary metabolites, and the biological activities of their infusion and methanolic (MeOH) extracts. Essential oils were extracted by hydrodistillation from shoots Salvia microphylla and Teucrium polium. Phenolic content, antioxidant and antimicrobial activities were determined. Gas chromatography-mass spectrometry (GC-MS) results showed the presence of significant qualitative and quantitative variations for the composition of the both essential oils (EO). Salvia microphylla EO were most complex and present 70 compounds with… More >

  • Open Access


    Antimicrobial activities of three seaweeds extract against some human viral and bacterial pathogens


    BIOCELL, Vol.46, No.1, pp. 247-261, 2022, DOI:10.32604/biocell.2022.015966


    Microbial infections cause complicated health influences along with bad economic impacts. In the present investigation, three dominant seaweeds namely, Amphiroa anceps, Corallina officinalis and Sargassum filipendula were collected from different Egyptian sites at the Red Sea and Mediterranean Sea during autumn 2019. Organic extracts of the three algae were screened for their antibacterial activity against three pathogenic bacteria Salmonella typhiimurium, Staphylococcus aureus and Escherichia coli, in addition to in vitro antiviral activity against Rotavirus (RV), and Coxsackie virus B3 (CVB3) that cause severe diseases in human. Organic extract of A. anceps, C. officinalis and S. filipendula inhibit E. coli cells… More >

  • Open Access


    Synthesis and Characterization of Green Potassium Nanoparticles from Sideroxylon Capiri and Evaluation of Their Potential Antimicrobial

    Judith Constantino-Alcazar1, Miguel Abud-Archila1, Benjamín Valdez-Salas3, Federico Gutierrez-Miceli1, Carlos Ceceña-Duran2, Blanca López-Valenzuela2, Daniel Gonzalez-Mendoza2,*,*

    Journal of Renewable Materials, Vol.9, No.10, pp. 1699-1706, 2021, DOI:10.32604/jrm.2021.015645

    Abstract In the present study, the green synthesis of potassium nanoparticles (K-NPs) was assessed using aqueous extract of Sideroxylon capiri. The potassium nanoparticles were analyzed by UV-visible spectroscopic techniques, X-ray spectrometers of energy dispersive (SEM-EDS) and dynamic light scattering. The results showed high values at 3.5 keV confirming the formation of potassium nanoparticles and the SEM analysis showed an agglomerated particles size between 360 to 200 nm with a spherical morphology. The K-NPs showed an effective antibacterial activity against the test organisms mainly with Bacillus cereus, Enterobacter aerogenes, Fusarium solani and Botrytis cinerea. However further studies about nanotoxicity of K-NPs are… More >

  • Open Access


    Non-Polar Chemical Constituents of Atemoya and Evaluation of the Cytotoxic and Antimicrobial Activity

    Suzana Vieira Rabêlo1, Fernanda Granja da Silva Oliveira2, Michele Miriam Calixto de Lira3, Livia Macedo Dutra3, Adilson Sartoratto4, Marta Cristina Teixeira Duarte4, Maria Claudia dos Santos Luciano5, Maria Francilene Souza Silva5, Cláudia do Ó Pessoa5, Manoel Odorico de Moraes Filho5, Emmanoel Vilaça Costa6, Jackson Roberto Guedes da Silva Almeida1,3,*

    Phyton-International Journal of Experimental Botany, Vol.90, No.3, pp. 921-931, 2021, DOI:10.32604/phyton.2021.013305

    Abstract This study aimed to identify the chemical composition of essential oil from fruits (EOAF) and the hexanic crude extract from aerial parts (At-Hex) of atemoya (Annona cherimola x Annona squamosa), a hybrid belonging to the Annonaceae family. Cytotoxic and antimicrobial activity was also evaluated. OEAF was obtained by hydrodistillation using a Clevenger apparatus, and their composition was analyzed by gas chromatography-mass spectrometry (GC-MS) analyses. Cytotoxicity was tested against human tumor cell lines HCT-116 (colon carcinoma), SF-295 (glioblastoma), OVCAR-8 (ovarian carcinoma) and HL60 (leukemia) using 3-(4,5-dimethyl-2-thiazolyl)-2,5- diphenyl-2H-tetrazolium bromide (MTT) assay, while antimicrobial activity was conducted by bioauthography method against eleven microorganisms… More >

  • Open Access


    Identification of Antimicrobial Peptides Using Chou’s 5 Step Rule

    Sharaf J. Malebary1, Yaser Daanial Khan2,*

    CMC-Computers, Materials & Continua, Vol.67, No.3, pp. 2863-2881, 2021, DOI:10.32604/cmc.2021.015041

    Abstract With the advancement in cellular biology, the use of antimicrobial peptides (AMPs) against many drug-resistant pathogens has increased. AMPs have a broad range of activity and can work as antibacterial, antifungal, antiviral, and sometimes even as anticancer peptides. The traditional methods of distinguishing AMPs from non-AMPs are based only on wet-lab experiments. Such experiments are both time-consuming and expensive. With the recent development in bioinformatics more and more researchers are contributing their effort to apply computational models to such problems. This study proposes a prediction algorithm for classifying AMPs and distinguishing between AMPs and non-AMPs. The proposed methodology uses machine… More >

  • Open Access


    Antimicrobial and plant growth-promoting activities of bacterial endophytes isolated from Calotropis procera (Ait.) W.T. Aiton


    BIOCELL, Vol.45, No.2, pp. 363-369, 2021, DOI:10.32604/biocell.2021.013907

    Abstract Bacterial endophytes are beneficial to their hosts as they can fix nitrogen in the soil and make it available to the host. Endophytic bacteria also secrete plant growth-promoting hormones to support their host plants under normal as well as stress conditions. The current study aimed to isolate endophytic bacteria from different parts of Calotropis procera, i.e., roots, stem and leaves of Calotropis procera (Ait.) W.T. Aiton. Plants were collected from the Lundkhwar, district Mardan. A total of 12 bacterial strains, i.e., six from roots, three from the stem and three from the leaves were isolated. The strains were screened for… More >

  • Open Access


    Melt Extrusion of Environmentally Friendly Poly(L-lactic acid)/Sodium Metabisulfite Films for Antimicrobial Packaging Applications

    Norma M. P. Machado1, Gustavo C. Melo1, Matheus F. Camargo1, Giulianna G. Feijó1, Bruna M. S. Putton2, Clarice Steffens2, Rogerio L. Cansian2, Luiz A. Pessan1, Francys K. V. Moreira1,*

    Journal of Renewable Materials, Vol.9, No.2, pp. 337-349, 2021, DOI:10.32604/jrm.2021.011081

    Abstract Food packaging materials compounded with antimicrobial additives can substantially diminish the incidence of foodborne diseases. Here, poly(L-lactic acid) (PLA) films containing sodium metabisulfite (NaM) were produced by melt extrusion as an attempt to develop a new biodegradable material with antimicrobial properties for packaging. Life cycle assessment (LCA) simulations revealed that the environmental footprints of the PLA film did not change upon NaM addition, and that NaM is more eco-friendly than silver nanoparticles. The PLA/NaM films with NaM content varying from 0.5 to 5.0 wt.% were characterized by differential scanning calorimetry (DSC), thermogravimetric analysis (TGA), and optical and mechanical properties determinations.… More >

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