Study on the Application of Ozonic water for Papaya

• Main Authors: Yong-Ji Zhang, 張永奇
• Other Authors: 盛中德
• Format: Others
• Language: zh-TW
• Published: 2007
• Online Access: http://ndltd.ncl.edu.tw/handle/90188413683563522772

碩士 === 中興大學 === 生物產業機電工程學系所 === 95 === The main objective of this study is to discover the effects of concentration and immersion application time of ozonic water to prevent the germination of anthracnose and the quality degradation for papaya. The various concentrations (1ppm, 2ppm, 3ppm and 4ppm) and application times (10sec, 20sec and 30sec) were tested in this study. The test results were recorded and analyzed to find out the influences of different treatments on the germination rate of anthracnose for papaya. The germination rate did decline as increasing the concentration or application time. The effect of concentration is more significant than the application time. The treatment of 4ppm and 30sec did show the better results than others. The comparison test, which did not apply the ozonic water to treat the samples, had the worst result. The comparison between the treatments of immersion and drip wash for 4ppm and 30s has been done, and the immersion treatment had better results. Papayas were treated with ozonic water did have some weight loss, but it was not so significant.