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New robust sensitive fluorescence spectroscopy coupled with PLSR for estimation of quercetin in Ziziphus mucronata and Ziziphus sativa.
Hussain, Javid; Mabood, Fazal; Al-Harrasi, Ahmed; Ali, Liaqat; Rizvi, Tania Shamim; Jabeen, Farah; Gilani, Syed Abdullah; Shinwari, Shehla; Ahmad, Mushtaq; Alabri, Zahra Khalfan; Al Ghawi, Said Hamood Salim.
Afiliación
  • Hussain J; Department of Biological Sciences & Chemistry, College of Arts and Sciences, University of Nizwa, Oman. Electronic address: javidhej@unizwa.edu.om.
  • Mabood F; Department of Biological Sciences & Chemistry, College of Arts and Sciences, University of Nizwa, Oman. Electronic address: mehboob@unizwa.edu.om.
  • Al-Harrasi A; UoN Chair of Oman's Medicinal Plants and Marine Natural Products, University of Nizwa, Oman. Electronic address: aharrasi@unizwa.edu.om.
  • Ali L; UoN Chair of Oman's Medicinal Plants and Marine Natural Products, University of Nizwa, Oman; Department of Chemistry, University of Sargodha, Sub-campus Mianwali, Pakistan.
  • Rizvi TS; UoN Chair of Oman's Medicinal Plants and Marine Natural Products, University of Nizwa, Oman.
  • Jabeen F; Department of Chemistry, University of Malakand, KPK, Pakistan.
  • Gilani SA; Department of Biological Sciences & Chemistry, College of Arts and Sciences, University of Nizwa, Oman.
  • Shinwari S; Department of Plant Sciences, Quaid-i-Azam University, Islamabad, Pakistan.
  • Ahmad M; Department of Plant Sciences, Quaid-i-Azam University, Islamabad, Pakistan.
  • Alabri ZK; Department of Biological Sciences & Chemistry, College of Arts and Sciences, University of Nizwa, Oman.
  • Al Ghawi SHS; Department of Biological Sciences & Chemistry, College of Arts and Sciences, University of Nizwa, Oman.
Spectrochim Acta A Mol Biomol Spectrosc ; 194: 152-157, 2018 Apr 05.
Article en En | MEDLINE | ID: mdl-29331816
Flavonoids are natural antioxidants derived from plants and commonly found in a variety of foods to sequester free radicals. Quercetin, belonging to flavonol subclass of flavonoids, has received considerable attention because of its wide uses as a nutritional supplement as well as a phytochemical remedy for a number of diseases. In the current study, quantification of quercetin was carried out in two medicinally important flavonoid rich plant Ziziphus mucronata and Ziziphus sativa. Emission spectroscopy was utilized as a new method coupled with Partial Least Squares Regression (PLSR) and the cross validation was done by UV-Visible spectroscopy. The results indicated the higher quercetin content in Z. mucronata (1.50±0.034%) than Z. sativa (1.21±0.052%), and were further verified through Folin-Ciocalteu Colorimetric method (Z. mucronata; 1.41±0.26% and Z. sativa; 1.13±0.136%). In this study the sensitivity was explained in term of slope i.e. Slope=0.9973.
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Texto completo: 1 Colección: 01-internacional Base de datos: MEDLINE Asunto principal: Quercetina / Espectrometría de Fluorescencia / Análisis de los Mínimos Cuadrados / Ziziphus / Antioxidantes Tipo de estudio: Diagnostic_studies Idioma: En Revista: Spectrochim Acta A Mol Biomol Spectrosc Asunto de la revista: BIOLOGIA MOLECULAR Año: 2018 Tipo del documento: Article Pais de publicación: Reino Unido
Texto completo
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Texto completo: 1 Colección: 01-internacional Base de datos: MEDLINE Asunto principal: Quercetina / Espectrometría de Fluorescencia / Análisis de los Mínimos Cuadrados / Ziziphus / Antioxidantes Tipo de estudio: Diagnostic_studies Idioma: En Revista: Spectrochim Acta A Mol Biomol Spectrosc Asunto de la revista: BIOLOGIA MOLECULAR Año: 2018 Tipo del documento: Article Pais de publicación: Reino Unido