บทคัดย่องานวิจัย

หมวดหมู่ : ฐานข้อมูลงานวิจัย

1-methycyclopropene-induced increase in antioxidant potential in cold stored pears.

Larrigaudiere C., Vilaplana R., Soria Y., Valentines M.C., Recasens I.

5th International Postharvest Symposium . Volume of Abstract . Verona, Italy 6-11 June 2004, p.44

2004

บทคัดย่อ

1-methycyclopropene-induced increase in antioxidant potential in cold stored pears.  Differences in oxidative stress and in antioxidant potential between controls and 1-MCP treated fruits were established in Blanquilla pears stored for 5 nomths in air.These determinations were carried out determining the changes in the levels of hydrogen peroxide and ionic leakage, and analysing the activity of the H2O2-generating enzyme superoxide dismutase (SOD, EC 1.15.11) and H2O2-scavenging enzymes catalase (CAT, EC 1.11.1.6), ascorbate peroxidase (APX, EC 1.11.1.11) and unspecific peroxidase (POX, EC 1.11.1.7) during storage.

MCP treated fruits exhibited lower levels of hydrogen peroxide and less ionic leakage during storage.Concomitantly, 1-MCP treated fruits also exhibited higher enzymatic antioxidant potential throughout storage.Collectively these results showed that the 1-MCP treatment induced a higher resistance to oxidative damage and challenge the hypothesis that the beneficial effects of 1-MCP o­n ripening were not exclusively due to its action o­n ethylene but also to an increase in its antioxidant potential in pear.