Color, phenolic and flavonoid content, and antioxidant activity of honey from Roraima, Brazil
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Cites background or methods from "Color, phenolic and flavonoid conte..."
...DPPH method was chosen to measure antioxidants in honey because it’s easy, precise and accurate method (Pontis et al., 2014)....
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...…Sidr and multifloral color were similar to values reported for Algerian honey which ranged between 31 and 198 mm (Rebia and Lanez, 2014), Brazilian honey which ranged between 31 and 166 mm (Pontis et al., 2014) and for Argentinian honey color ranged between 40.7 and 140 mm (Cabrera et al., 2017)....
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...8 mg/kg (Ferreira et al., 2009) and Brazil 250e548 mg/kg (Pontis et al., 2014)....
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...Pontis et al. (2014) reported color: phenolics correlation (.967), color: antioxidants ( 0.800) and phenolics: antioxidants ( 0.752)....
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55 citations
Cites background from "Color, phenolic and flavonoid conte..."
...This reagent reacts with phenolic compounds and gives a blue color complex that absorbs radiation at 765 nm and allows quantification [31]....
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References
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"Color, phenolic and flavonoid conte..." refers background or methods in this paper
...The total flavonoid content is generally determined using a spectrophotometric assay based on the formation of an aluminum chloride complex, which has been applied for quantification of flavones and flavonols in honey (Meda et al., 2005; Liberato et al., 2011)....
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...…Federal de Roraima – UFRR, Campus Paricarana, Boa Vista, RR, Brasil, e-mail: aflach@gmail.com 2 Instituto Federal de Educação, Ciência e Tecnologia de Roraima – IFRR, Campus Amajari, Amajari, RR, Brasil 3 Universidade Estadual de Roraima – UERR, Boa Vista, RR, Brasil *Corresponding author...
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"Color, phenolic and flavonoid conte..." refers background or methods in this paper
...An important parameter of honey is its color, which reflects the floral source (Bertoncelj et al., 2007) and can be determined by spectrophotometric measurement of the absorbance of a 50% honey solution at 635 nm and classified according to the Pfund scale (Ferreira et al....
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...A colorimetric assay using the Folin-Ciocalteu reagent is often referenced in the literature for the determination of phenolic compounds (Bertoncelj et al., 2007; Socha et al., 2009; Ferreira et al., 2009; Beretta et al., 2005; Kaškonienė et al., 2009)....
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...Statistical analysis of the phenolic content, color, and antioxidant activity has demonstrated positive correlations (Bertoncelj et al., 2007)....
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...Phenolic acids and flavonoids are the main antioxidants in this apiary product (Bertoncelj et al., 2007; Socha et al., 2009)....
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...The IC50 values were calculated using linear regression of plots where the abscissa represented the concentration of the honey solution and the ordinate was the percent of antioxidant activity (Bertoncelj et al., 2007; Socha et al., 2009; Ferreira et al., 2009; Mesor et al., 2001; Baltrušaitytė et al., 2007)....
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