Changes of Pesticides Residues between Preharvest to Storge Period of Domestic Rice

• Main Authors: Jia-Sheng Zhang, 張嘉升
• Other Authors: 許奕婷
• Format: Others
• Language: zh-TW
• Published: 2014
• Online Access: http://ndltd.ncl.edu.tw/handle/33437737881420622900

碩士 === 國立中興大學 === 農藝學系所 === 102 === With the progress of time, the issue of food safety has become one of the major issues of social concern. Rice (Oryza sativa L.) is a major crop in Taiwan. In this study, we had randomly sampled from farm field areas in Taoyuan County, Nantou County, Chiayi County and Chung Hsing University experimental farm. If we cultivate rice on conventional methods, rice grain just right milk stage to dough stage, will spraying agent the last time. We may be carried out grains during 2-4 week after spraying the pharmacy to pre-harvest in accordance with the growth status of rice.Grain had also been taken when harvesting, drying, storing.And then the grain were be submitted while the same point of time above. After husking rice, namely hulled rice, also were be submitted. The sample were be submitted to Taiwan Agricultural Chemicals and Toxic Substances Research Institute, which uses the Food and Drug Adminstration announced "Pesticide residues in food inspection method - multi-residual analysis method (4)". The pharmaceutical residues results generally available as linear function, exponential decay function, 4-PL (four parameter logistic curver) in attenuation curve fitting.The agents found to methamidophos and carbofuran which are government announced disable pesticide.As for pharmaceutical residues in part, there are some pharmacy after rice husking still exceeded safety tolerances.