Microwave-assisted extraction of phenolic antioxidants from potato peels.

نویسندگان

  • Ashutosh Singh
  • Kebba Sabally
  • Stan Kubow
  • Danielle J Donnelly
  • Yvan Gariepy
  • Valérie Orsat
  • G S V Raghavan
چکیده

A response surface method was used to optimize the microwave-assisted extraction parameters such as extraction time (t) (min), solvent (methanol) concentration (S) (v/v) and microwave power level (MP) for extraction of antioxidants from potato peels. Max. total phenolics content of 3.94 mg g⁻¹ dry weight (dw) was obtained at S of 67.33%, t of 15 min and a MP of 14.67%. For ascorbic acid (1.44 mg g⁻¹ dw), caffeic acid (1.33 mg g⁻¹ dw), ferulic acid (0.50 mg g⁻¹ dw) max contents were obtained at S of 100%, t of 15 min, and MP of 10%, while the max chlorogenic acid content (1.35 mg g⁻¹ dw) was obtained at S of 100%, t of 5 min, and MP of 10%. The radical scavenging activity of the extract was evaluated by using the DPPH assay and optimum antioxidant activity was obtained at S of 100%, t of 5 min, and MP of 10%.

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عنوان ژورنال:
  • Molecules

دوره 16 3  شماره 

صفحات  -

تاریخ انتشار 2011