دانلود مقاله با موضوع خصوصیات و فعالیت های بیولوژیکی مرکبات سنتز شده نانوکامپوزیت پکتین-MgO
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موضوع به انگلیسی:Characterization and biological activities of synthesized citrus
pectin-MgO nanocomposite
بخشی از متن:Pectin, a biopolymer was extracted from the peels of orange. In extraction of the pectin from orange peel, acid
hydrolysis of the dry orange fruit peel was carried out and continued precipitation using ethanol. The percentage
yield of the extracted pectin is 12.25%. Equivalent weight, degree of esterification, methoxy content, AUA% and
molecular weight for pectin were determined. Further by co-precipitation method the citrus pectin-MgO nanocomposite
was prepared. Extracted pectin and citrus pectin-MgO nanocomposite were characterized by
Powdered X-Ray Diffractometer (XRD), Fourier Transform Infrared Spectroscopy (FTIR) and Scanning Electronic
microscope (SEM). The antibacterial activity of pectin and pectin-MgO nanocomposite was extensively studied
on clinical pathogens Bacillus subtilis and Lactobacillus. Antifungal activity was also studied against pathogenic
organisms; Microsporum gypseum and Trichophyton mentagrophytes. They were also screened for antioxidant DPPH
radical scavenging assay. The biological activity data showed that the citrus pectin-MgO nanocomposite is more
potent than the pectin
