[Effects of rice cleaning and cooking process on the residues of flutolanil, fenobucarb, silafluofen and buprofezin in rice].
We studied the effect of cleaning and cooking on the residues of flutolanil, fenobucarb, silafluofen and buprofezin in rice. The rice had been sprayed in a paddy field in Wakayama city, with 3 kinds of pesticide application protocols: spraying once at the usual concentration of pesticides, repeated spraying (3 times) with the usual concentration of pesticides and spraying once with 3 times the usual concentration of pesticides. The residue levels of pesticide decreased during the rice cleaning process. Silafluofen, which has a higher log Pow value, remained in the hull of the rice. Fenobucarb, which has a lower log Pow value, penetrated inside the rice. The residue concentration of pesticide in polished rice was higher than that in pre-washed rice processed ready for cooking. During the cooking procedure, the reduction of pesticides in polished rice was higher than that in brown rice.
Saika Technological Institute Foundation: 75-2, Kuroda, Wakayama-shi 640-8341, Japan.
Motoaki
M
Satoh
Masayuki
M
Sakaguchi
Masakazu
M
Kobata
Yoko
Y
Sakaguchi
Haruna
H
Tanizawa
Yuri
Y
Miura
Ryoichi
R
Sasano
Yutaka
Y
Nakanishi
D000813:Anilides / Q000032:analysis; D002219:Carbamates / Q000032:analysis; D003296:Cooking; D005511:Food Handling; D017646:Organosilicon Compounds / Q000032:analysis; D012275:Oryza / Q000737:chemistry*; D010573:Pesticide Residues / Q000032:analysis*; D010575:Pesticides / Q000032:analysis*; D013829:Thiadiazines / Q000032:analysis*
D000813:Anilides; D002219:Carbamates; D017646:Organosilicon Compounds; D010573:Pesticide Residues; D010575:Pesticides; D013829:Thiadiazines; C475883:silafluofen; C475882:flutolanil; C019276:BPMC; C083997:buprofezin