Investigation on the Anti-oxidative Activity of Kiwifruits Pulp Extracts

  • WANG Hua ,
  • CAO Jing ,
  • ZHAI Li-juan ,
  • XUE Zhao-hui
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  • Department of Food Science, College of Chemical Engineering and Technology, Tianjin University, Tianjin 300072, China

Received date: 2012-12-03

  Online published: 2014-10-14

Abstract

By measuring systematically in simulated chemical systems through the ways of scavenging DPPH,ABTS and superoxide anion radicals and FRAP method,the antioxidant activity of acetone-extracting from kiwifruits pulp with flash extraction and the content of the total phenol and total flavonoids of the extract were measured. The results showed that the content of total phenol and total flavonoids of the extract were(3. 19 ± 0.53)mg/g and(0.26 ±0.07)mg/g,respectively. The research in simulated chemical systems showed that the acetone-extracting from kiwifruits hadgreat scavenging effect against·OH,DPPH·andO2-·in the experimental range. When the con-centrate of sample was 1g/mL,the scavenging rate to superoxide anion radicals was up to 90.7%. And when the concentrate was 2g/mL,the scavenging rate to ·OH and DPPH· was 84.5% and 82. 2%,respectively. With the increasing concentration,the scavenging effect enhanced,which suggested the presence of dose-effect relations. Be-side,the FRAP value of acetone-extracting from kiwifruits also increased with concentration,which had excellent significant correlation with its DPPH· andO2-·radical-scavenging activity,significant correlation with its·OH rad-ical-scavenging activity. The results provide the theory basic for kiwifruits exploitation.

Cite this article

WANG Hua , CAO Jing , ZHAI Li-juan , XUE Zhao-hui . Investigation on the Anti-oxidative Activity of Kiwifruits Pulp Extracts[J]. Acta Agriculturae Boreali-Sinica, 2013 , 28(2) : 144 -149 . DOI: 10.3969/j.issn.1000-7091.2013.02.026

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