Effect of Gamma-Ray Irradiation on the Metabolic Changes in Potato Tubers in Response to Cutting

概要

論文の詳細を見る
Potato tubers were subjected to cobalt-60 gamma-ray irradiation and stored at room temperature for 10 days to 4 months. Effects of the irradiation on metabolic changes in potato tubers in response to cutting were investigated. The quantities of phenylpropanoids such as chlorogenic acid and isochlorogenic acid in the tissue increased as compared with the non-irradiated sample. Although phenylpropanoid content and activities of <I>o</I>-diphenol oxidase, peroxidase and phenylalanine ammonia-lyase were increased after cutting, the increases were lower in irradiated sample. On the other hand, in the dose range from 5, 000 to 12, 400 rad, the irradiated sample showed a larger defense action against the infection of the black rot fungus, <I>Ceratocystis fimbriata</I> than the non-irradiated sample.
日本食品照射研究協議会の論文