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자료유형
학술저널
저자정보
저널정보
한국생명과학회 생명과학회지 생명과학회지 제15권 제4호
발행연도
2005.8
수록면
528 - 535 (8page)

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The non-enzymatic anti-oxidants and lunasin peptide from the extracts of the pepper were examined in order to utilize the discovery in natural products as cancer chemopreventive agents. The DPPH (1,1-diphenyl-2-picryl-hydrazyl) free radical scavenging activity on the fruit parts of the pepper was higher than that of the seed, but the difference was low. The Inhibition activity of xanthine/ xanthine oxidase in extracts of the seed was higher than that of the fruit and that of the seed on 20 days after flowering was the highest at the growing period. These were identified as fatty acids and phenolic compounds such as 1-eicosanol, palmitic acid, linoleic acid, linolenic acid and benzonitrile. The contents of fatty acids and phenolic compounds increased according to the time passing at the growing period. Peroxidase (POD) activity of the fruit at middle stage was high than that of other growing stages and that of the seed was the highest at later growing period. Though superoxide dismutase (SOD) activities in fruit were high by passage of growing stage, the activity in seed was low. Lunasin was searched from seeds of the peppers by coomassie blue staining and western blot among them and we just found lunasin peptide from extracted protein of the pepper by western blot. In addition, we observed the contents of lunasin after flowering and confirmed to appear the lunasin at 35 days after flowering. We confirmed that lunasin is complex protein of maturing seeds. 100 nM lunasin peptide in pepper showed inhibition effect on colony formation in 2~12 cells.

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UCI(KEPA) : I410-ECN-0101-2009-470-015375274