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Investigators from VIT University Target Antioxidants (Antimicrobial and antioxidant activities of Mimusops elengi seed extract mediated isotropic...

August 12, 2014



Investigators from VIT University Target Antioxidants (Antimicrobial and antioxidant activities of Mimusops elengi seed extract mediated isotropic silver nanoparticles)

By a News Reporter-Staff News Editor at Life Science Weekly -- Investigators publish new report on Antioxidants. According to news reporting out of Tamil Nadu, India, by NewsRx editors, research stated, "The present study reports the use of Mimusops elengi (M. elengi) fruit extract for the synthesis of silver nanoparticles (Ag NPs). The synthesized Ag NPs was initially noticed through visual color change from yellow to reddish brown and further confirmed by surface plasmonic resonance (SPR) band at 429 nm using UV-Visible spectroscopy."

Our news journalists obtained a quote from the research from VIT University, "Morphology and size of Ag NPs was determined by Transmission Electron Microscopy (TEM) analysis. X-ray Diffraction (XRD) study revealed crystalline nature of Ag NPs. The prolonged stability of Ag NPs was due to capping of oxidized polyphenols which was established by Fourier Transform Infrared Spectroscopy (FTIR) study. The polyphenols present in M. elengi fruit extract was analyzed by High Pressure Liquid Chromatography (HPLC) and the results revealed the presence of ascorbic acid, gallic acid, pyrogallol and resorcinol. In order to study the role of these polyphenols in reducing Ag+ ions to Ag NPs, analyses of extracts before reduction and after reduction were carried out. In addition, the synthesized Ag NPs were tested for antibacterial and antioxidant activities against Staphylococcus aureus (S. Aureus) and Escherichia coli (E. coli). Ag NPs showed good antimicrobial activity against both gram positive (S. aureus) and gram negative (E. coli) bacteria."

According to the news editors, the research concluded: "It also showed good antioxidant activity as compared to ascorbic acid as standard antioxidant."

For more information on this research see: Antimicrobial and antioxidant activities of Mimusops elengi seed extract mediated isotropic silver nanoparticles. Spectrochimica Acta Part A-Molecular and Biomolecular Spectroscopy, 2014;130():13-18. Spectrochimica Acta Part A-Molecular and Biomolecular Spectroscopy can be contacted at: Pergamon-Elsevier Science Ltd, The Boulevard, Langford Lane, Kidlington, Oxford OX5 1GB, England (see also Antioxidants).

Our news journalists report that additional information may be obtained by contacting H.A.K. Kumar, VIT Univ, Sch Bio Sci & Technol, Medical Biotechnol Div, Vellore 632014, Tamil Nadu, India. Additional authors for this research include B.K. Mandal, K.M. Kumar, S.B. Maddinedi, T.S. Kumar, P. Madhiyazhagan and A.R. Ghosh.

Keywords for this news article include: Asia, Antioxidants, India, Tamil Nadu, Escherichia, Nanoparticle, Nanotechnology, Protective Agents, Enterobacteriaceae, Gammaproteobacteria, Emerging Technologies

Our reports deliver fact-based news of research and discoveries from around the world. Copyright 2014, NewsRx LLC


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Source: Life Science Weekly


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