Antioxidant Activity of Triticale Caryopses and Embryos Extracts

Karamac, Magdalena;Amarowicz, Ryszard;Weidner, Stanislaw;Abe, Shunnosuke;Shahidi, Fereidoon

  • Published : 20040800

Abstract

Phenolic compounds from caryopses and embryos of triticale (cv. Bogo and Ugo) were extracted into 80% methanol. Total phenolic contents in extracts were determined and their UV spectra recorded. For all extracts antioxidant activity in ${\beta}$-carotene-linoleate model system, scavenging effect on DPPH radical, and reducing power were examined. Total phenolic contents varied with part and cultivar, with those of Bogo and Ugo (5.02 and 4.96 mg/g, respectively) in caryopses being higher than those of embryos (Bogo 4.59 mg/g; Ugo 4.42 mg/g). UV spectra of all extracts were characterised by maxima at around 270 and 320 nm due to phenolic compounds. All extracts showed good antioxidant activity in ${\beta}$-carotenelinoleate model system. Antioxidant activity of extracts paralleled their contents of phenolics; triticale caryopses had stronger effect than extracts of embryos. Embryo extracts showed higher DPPH radical-scavenging activity than caryopses extracts. Ugo embryo extracts possessed strongest reducing power.

Keywords

References

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