Total phenolic compounds and antioxidant capacity of leaf, dry fruit and fresh fruit of feijoa (Acca sellowiana, Myrtaceae)

Dynamic Chiropractic

mer Beyhan¹  Ouml² 

[1] Gaziosmanpaşa University, Faculty of Science and Arts, Department of Chemistry 60240-Tokat-Turkey.;Sakarya University, Vocational School of Akyazı, Green Housing Program 54187 Sakarya - Turkey.

关键词: Antioxidant capacity;    feijoa;    Acca sellowiana;    phenolic compounds;    antioxidant activity;    free radical;    functional compounds.;   

DOI  :  10.5897/JMPR10.008

学科分类：医学（综合）

来源: MPA Media

【 摘 要 】

The methanolextract of fresh fruit (MEFF), dry fruit (MEDF) and leaf of feijoawere analysed for antioxidant capacity in different systems including reducing power, free radical scavenging, total antioxidant activity, and metal chelating activities. Those various antioxidant activities were compared to standard antioxidants. The percentage inhibitions of 40mg/ml concentration ofMEFF, MEDF and leafon peroxidation in linoleic acid system were 74, 75 and 87% respectively, and the same concentration (40mg/ml) of α-tocopherol was showed similar activity. On the other hand,MEFF, MEDF and leafhad effective reducing power, free radical scavenging, and metal chelating activities at same concentrations (40 µg/ml). In addition, total phenolic compounds inME of FF, DF and leafwere determinedas gallic acid equivalent. As conclusion feijoa both fruit and leaf have antioxidant capacity but the activity of leaf greater than fruit. This difference may be phenolic compounds content.

【 授权许可】

Unknown