Antioxidative activity of bound-form phenolics in potato peel.
Free and bound-form phenolics were isolated from potato (cv. Toyoshiro) flesh and peel. The free and bound-form phenolics in the peel showed high DPPH radical scavenging activity, while those in the flesh showed low activity. The total amount of chlorogenic acid and caffeic acid in the free-form phenolics from the peel was highly correlated with the DPPH radical scavenging activity. Ferulic acid was identified as the active radical scavenging compound in the bound-form phenolics from the peel. The potato peel may therefore offer an effective source of an antioxidative.
Nara
Kazuhiro
K
Calbee Foods Co., Ltd., Saitama. k_nara@calbee.co.jp
Miyoshi
Takayuki
T
Honma
Tamaki
T
Koga
Hidenori
H
D000975:Antioxidants / Q000737:chemistry* / Q000302:isolation & purification / Q000494:pharmacology*; D001713:Biphenyl Compounds; D002851:Chromatography, High Pressure Liquid; D005609:Free Radicals / Q000737:chemistry; D010636:Phenols / Q000737:chemistry* / Q000302:isolation & purification / Q000494:pharmacology*; D010851:Picrates / Q000737:chemistry; D011198:Solanum tuberosum / Q000737:chemistry*
D000975:Antioxidants; D001713:Biphenyl Compounds; D005609:Free Radicals; D010636:Phenols; D010851:Picrates; C004931:1,1-diphenyl-2-picrylhydrazyl